Automationdirect.com DL06 User manual

DL06 Micro PLC User Manual
Volume 1 of 2
Manual Number: D0-06USER-M

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DL06 Micro PLc USER MANUAL
Please include the Manual Number and the Manual Issue, both shown below,
when communicating with Technical Support regarding this publication.
Manual Number: D0-06USER-M
Issue: 3rd Edition, Rev. E
Issue Date: 8/18
Publication History
Issue Date Description of Changes
First Edition 7/02 Original
Rev. A 10/02 Updated drawing images and made minor corrections.
Rev. B 6/03 Added new PLC and made numerous corrections.
2nd Edition 3/04 Added two appendices, removed discrete module data and made numerous
corrections.
3rd Edition 3/07
Corrected all tables, many corrections to Chapters 2, 3, 4, 5, 6, and 7; Chapter 3
(HSIO) was moved to the Appendices and Chapter 4 was divided into Chapters 3 &
4; added DS5 Intelligent Boxes to Chapter 5; added Ramp/Soak example to Chapter
8; Numbering Systems and Serial Communications were added to Appendices; many
minor corrections were made throughout manual.
Rev. A 5/07 Minor corrections and updates.
Rev. B 6/11 Updated Chapter 5 with current DirectSOFT dialog views, corrected number of
registers needed to use the print message instruction, removed fuses and corrected
I/O wiring drawings, and other minor corrections and updates.
Rev. C 2/13 Added H0-CTRIO2 references. Minor corrections and updates.
Added transient suppression for inductive loads.
Rev. D 6/16 Corrections and updates.
Rev. E 8/18 Corrections, updates, removed mention of the DA-EU-M from Appendix J.

DL06 Micro PLC User Manual 3rd Edition, Rev.E
Notes

Table of ConTenTs
Chapter 1: Getting Started
Introduction...............................................................................................................1–2
The Purpose of this Manual......................................................................................1–2
Supplemental Manuals.............................................................................................1–2
Technical Support ....................................................................................................1–2
Conventions Used......................................................................................................1–3
Key Topics for Each Chapter.....................................................................................1–3
DL06 Micro PLC Overview.........................................................................................1–4
The DL06 PLC Features ............................................................................................1–4
DirectSOFT Programming for Windows™ ................................................................1–4
Handheld Programmer.............................................................................................1–5
I/O Quick Selection Guide.........................................................................................1–5
Quick Start .................................................................................................................1–6
Steps to Designing a Successful System.................................................................1–10
Questions and Answers about DL06 Micro PLCs....................................................1–12
Chapter 2: Installation, Wiring, and Specifications
Safety Guidelines.......................................................................................................2–2
Plan for Safety ..........................................................................................................2–2
Three Levels of Protection ........................................................................................2–3
Emergency Stops......................................................................................................2–3
Emergency Power Disconnect ..................................................................................2–4
Orderly System Shutdown........................................................................................2–4
Class 1, Division 2 Approval .....................................................................................2–4
Orientation to DL06 Front Panel ..............................................................................2–5
Terminal Block Removal ...........................................................................................2–6
Mounting Guidelines.................................................................................................2–7

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Table of Contents
Unit Dimensions.......................................................................................................2–7
Enclosures ................................................................................................................2–7
Panel Layout & Clearances.......................................................................................2–8
Using Mounting Rails ...............................................................................................2–9
Environmental Specifications..................................................................................2–10
Agency Approvals...................................................................................................2–10
Marine Use.............................................................................................................2–10
Wiring Guidelines ....................................................................................................2–11
External Power Source............................................................................................2–12
Planning the Wiring Routes....................................................................................2–12
Fuse Protection for Input and Output Circuits........................................................2–13
I/O Point Numbering .............................................................................................2–13
System Wiring Strategies ........................................................................................2–14
PLC Isolation Boundaries ........................................................................................2–14
Connecting Operator Interface Devices..................................................................2–15
Connecting Programming Devices .........................................................................2–15
Sinking / Sourcing Concepts ..................................................................................2–16
I/O “Common” Terminal Concepts........................................................................2–17
Connecting DC I/O to “Solid State” Field Devices..................................................2–18
Solid State Input Sensors........................................................................................2–18
Solid State Output Loads........................................................................................2–18
Relay Output Wiring Methods................................................................................2–20
Relay Outputs-Transient Suppression For Inductive Loads in a Control System.......2–21
Prolonging Relay Contact Life ................................................................................2–26
DC Input Wiring Methods......................................................................................2–27
DC Output Wiring Methods...................................................................................2–28
High-Speed I/O Wiring Methods............................................................................2–29
Wiring Diagrams and Specifications.......................................................................2–30
D0–06AA I/O Wiring Diagram................................................................................2–30
D0–06AR I/O Wiring Diagram................................................................................2–32
D0–06DA I/O Wiring Diagram ...............................................................................2–34
D0–06DD1 I/O Wiring Diagram.............................................................................2–36
D0–06DD2 I/O Wiring Diagram.............................................................................2–38
D0–06DR I/O Wiring Diagram................................................................................2–40
D0–06DD1–D I/O Wiring Diagram.........................................................................2–42
D0–06DD2–D I/O Wiring Diagram.........................................................................2–44
D0–06DR–D I/O Wiring Diagram ...........................................................................2–46

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Table of Contents
Glossary of Specification Terms ..............................................................................2–48
Chapter 3: CPU Specifications and Operation
Overview3–2
DL06 CPU Features ..................................................................................................3–2
CPU Specifications.....................................................................................................3–3
CPU Hardware Setup.................................................................................................3–4
Communication Port Pinout Diagrams .....................................................................3–4
Connecting the Programming Devices.....................................................................3–5
CPU Setup Information ............................................................................................3–5
Status Indicators.......................................................................................................3–6
Mode Switch Functions............................................................................................3–6
Changing Modes in the DL06 PLC ...........................................................................3–7
Mode of Operation at Power-up ..............................................................................3–7
Using Battery Backup ................................................................................................3–8
Battery Backup .........................................................................................................3–8
Auxiliary Functions ...................................................................................................3–9
Clearing an Existing Program ...................................................................................3–9
Initializing System Memory ......................................................................................3–9
Setting Retentive Memory Ranges..........................................................................3–10
Using a Password ...................................................................................................3–11
CPU Operation.........................................................................................................3–12
CPU Operating System...........................................................................................3–12
Program Mode.......................................................................................................3–13
Run Mode ..............................................................................................................3–13
Read Inputs............................................................................................................3–14
Service Peripherals and Force I/O ...........................................................................3–14
CPU Bus Communication .......................................................................................3–15
Update Clock, Special Relays and Special Registers.................................................3–15
Solve Application Program .....................................................................................3–16
Solve PID Loop Equations.......................................................................................3–16
Write Outputs ........................................................................................................3–16
Write Outputs to Specialty I/O ...............................................................................3–16
Diagnostics.............................................................................................................3–17
I/O Response Time ..................................................................................................3–17
Is Timing Important for Your Application?..............................................................3–17

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Normal Minimum I/O Response.............................................................................3–18
Normal Maximum I/O Response ............................................................................3–18
Improving Response Time ......................................................................................3–19
CPU Scan Time Considerations...............................................................................3–20
Reading Inputs .......................................................................................................3–20
Writing Outputs .....................................................................................................3–20
Service Peripherals..................................................................................................3–21
CPU Bus Communication .......................................................................................3–21
Update Clock/Calendar, Special Relays, Special Registers .......................................3–21
Application Program Execution ..............................................................................3–22
PLC Numbering Systems........................................................................................3–23
PLC Resources ........................................................................................................3–23
V–Memory .............................................................................................................3–24
Binary-Coded Decimal Numbers ............................................................................3–24
Hexadecimal Numbers ...........................................................................................3–24
Memory Map ...........................................................................................................3–25
Octal Numbering System.......................................................................................3–25
Discrete and Word Locations..................................................................................3–25
V-memory Locations for Discrete Memory Areas ....................................................3–25
Input Points (X Data Type).....................................................................................3–26
Output Points (Y Data Type) ..................................................................................3–26
Control Relays (C Data Type) .................................................................................3–26
Timers and Timer Status Bits (T Data Type)............................................................3–26
Timer Current Values (V Data Type) .......................................................................3–27
Counters and Counter Status Bits (CT Data type)...................................................3–27
Counter Current Values (V Data Type) ...................................................................3–27
Word Memory (V Data Type).................................................................................3–28
Stages (S Data type)...............................................................................................3–28
Special Relays (SP Data Type).................................................................................3–28
DL06 System V-memory..........................................................................................3–29
System Parameters and Default Data Locations (V Data Type) ...............................3–29
DL06 Aliases.............................................................................................................3–31
DL06 Memory Map..................................................................................................3–32
X Input/Y Output Bit Map ......................................................................................3–33
Stage Control/Status Bit Map.................................................................................3–34
Control Relay Bit Map .............................................................................................3–36

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Table of Contents
Timer Status Bit Map...............................................................................................3–38
Counter Status Bit Map...........................................................................................3–38
GX and GY I/O Bit Map ..........................................................................................3–39
Chapter 4: System Design and Configuration
DL06 System Design Strategies ................................................................................4–2
I/O System Configurations .......................................................................................4–2
Networking Configurations ......................................................................................4–2
Module Placement.....................................................................................................4–3
Slot Numbering........................................................................................................4–3
Automatic I/O Configuration....................................................................................4–4
Manual I/O Configuration ........................................................................................4–4
Power Budgeting.......................................................................................................4–5
Power supplied .......................................................................................................4–5
Power required by base unit ...................................................................................4–5
Power required by option cards ..............................................................................4–5
Configuring the DL06’s Comm Ports........................................................................4–7
DL06 Port Specifications...........................................................................................4–7
DL06 Port Pinouts ....................................................................................................4–7
Choosing a Network Specification............................................................................4–8
RS-232 Network.......................................................................................................4–8
RS-422 Network.......................................................................................................4–8
RS-485 Network.......................................................................................................4–8
Connecting to MODBUS and DirectNET Networks..................................................4–9
MODBUS Port Configuration....................................................................................4–9
DirectNET Port Configuration.................................................................................4–10
Non–Sequence Protocol (ASCII In/Out and PRINT)...............................................4–11
Non-Sequence Port Configuration..........................................................................4–11
Network Slave Operation........................................................................................4–12
MODBUS Function Codes Supported.....................................................................4–12
Determining the MODBUS Address........................................................................4–12
If Your Host Software Requires the Data Type and Address ....................................4–13
Example 1: V2100..................................................................................................4–14
Example 2: Y20 ......................................................................................................4–14
Example 3: T10 Current Value................................................................................4–14

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Table of Contents
Example 4: C54......................................................................................................4–14
If Your MODBUS Host Software Requires an Address ONLY ...................................4–15
Example 1: V2100 584/984 Mode .........................................................................4–16
Example 2: Y20 584/984 Mode .............................................................................4–16
Example 3: T10 Current Value 484 Mode ..............................................................4–17
Example 4: C54 584/984 Mode.............................................................................4–17
Network Master Operation.....................................................................................4–17
Step 1: Identify Master Port # and Slave #..............................................................4–18
Step 2: Load Number of Bytes to Transfer..............................................................4–18
Step 3: Specify Master Memory Area......................................................................4–19
Step 4: Specify Slave Memory Area ........................................................................4–20
Communications from a Ladder Program...............................................................4–21
Multiple Read and Write Interlocks.........................................................................4–21
Network Master Operation (using MRX and MWX Instructions) .........................4–22
MODBUS Function Codes Supported.....................................................................4–22
MODBUS Read from Network(MRX) ......................................................................4–23
MRX Slave Memory Address...................................................................................4–24
MRX Master Memory Addresses.............................................................................4–24
MRX Number of Elements......................................................................................4–24
MRX Exception Response Buffer .............................................................................4–24
MODBUS Write to Network (MWX) .......................................................................4–25
MWX Slave Memory Address .................................................................................4–26
MWX Master Memory Addresses............................................................................4–26
MWX Number of Elements.....................................................................................4–26
MWX Exception Response Buffer............................................................................4–26
MRX/MWX Example in DirectSOFT ........................................................................4–27
Multiple Read and Write Interlocks.........................................................................4–27
Chapter 5: Standard RLL Instructions
Introduction...............................................................................................................5–2
Using Boolean Instructions .......................................................................................5–5
END Statement ........................................................................................................5–5
Simple Rungs ...........................................................................................................5–5
Normally Closed Contact .........................................................................................5–6
Contacts in Series.....................................................................................................5–6
Midline Outputs.......................................................................................................5–6

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Table of Contents
Parallel Elements.......................................................................................................5–7
Joining Series Branches in Parallel.............................................................................5–7
Joining Parallel Branches in Series.............................................................................5–7
Combination Networks ............................................................................................5–7
Comparative Boolean...............................................................................................5–8
Boolean Stack...........................................................................................................5–8
Immediate Boolean ..................................................................................................5–9
Boolean Instructions ...............................................................................................5–10
Comparative Boolean ..............................................................................................5–26
Immediate Instructions ...........................................................................................5–32
Timer, Counter and Shift Register Instructions......................................................5–39
Using Timers ..........................................................................................................5–39
Timer Example Using Discrete Status Bits ...............................................................5–41
Timer Example Using Comparative Contacts..........................................................5–41
Accumulating Timer Example using Discrete Status Bits .........................................5–43
Accumulator Timer Example Using Comparative Contacts .....................................5–43
Using Counters.......................................................................................................5–44
Counter Example Using Discrete Status Bits ...........................................................5–46
Counter Example Using Comparative Contacts ......................................................5–46
Stage Counter Example Using Discrete Status Bits..................................................5–48
Stage Counter Example Using Comparative Contacts ............................................5–48
Up / Down Counter Example Using Discrete Status Bits.........................................5–50
Up / Down Counter Example Using Comparative Contacts....................................5–50
Accumulator/Stack Load and Output Data Instructions ........................................5–52
Using the Accumulator...........................................................................................5–52
Copying Data to the Accumulator..........................................................................5–52
Changing the Accumulator Data............................................................................5–53
Using the Accumulator Stack..................................................................................5–54
Using Pointers ........................................................................................................5–55
Logical Instructions (Accumulator).........................................................................5–69
Math Instructions ....................................................................................................5–86
Transcendental Functions......................................................................................5–118
Bit Operation Instructions.....................................................................................5–120
Number Conversion Instructions (Accumulator)..................................................5–127
Shuffle Digits Block Diagram ................................................................................5–139

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Table of Contents
Table Instructions ..................................................................................................5–141
Copy Data From a Data Label Area to V-memory.................................................5–143
Clock/Calendar Instructions..................................................................................5–171
CPU Control Instructions.......................................................................................5–173
Program Control Instructions ...............................................................................5–175
Interrupt Instructions ............................................................................................5–183
Message Instructions.............................................................................................5–186
Move Block Instruction (MOVBLK) .......................................................................5–189
Copy Data From a Data Label Area to V-memory.................................................5–189
Intelligent I/O Instructions....................................................................................5–194
Read from Intelligent Module (RD).......................................................................5–194
Write to Intelligent Module (WT) .........................................................................5–195
Network Instructions.............................................................................................5–196
Direct Text Entry ..................................................................................................5–200
Embedding date and/or time variables.................................................................5–201
Embedding V-memory data .................................................................................5–201
Data Format Suffixes for Embedded V-memory Data............................................5–202
Text Entry from V-memory...................................................................................5–203
MODBUS RTU Instructions ...................................................................................5–204
MRX Slave Address Ranges...................................................................................5–205
MWX Slave Address Ranges..................................................................................5–208
MWX Master Memory Address Ranges.................................................................5–208
MWX Number of Elements ................................................................................5–208
MWX Exception Response Buffer..........................................................................5–208
ASCII Instructions ..................................................................................................5–210
Reading ASCII Input Strings..................................................................................5–210
Writing ASCII Output Strings................................................................................5–210
Managing the ASCII Strings .................................................................................5–211
Intelligent Box (IBox) Instructions........................................................................5–230
Chapter 6: Drum Instruction Programming
Introduction...............................................................................................................6–2

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Table of Contents
Purpose....................................................................................................................6–2
Drum Terminology...................................................................................................6–2
Drum Chart Representation......................................................................................6–3
Output Sequences....................................................................................................6–3
Step Transitions.........................................................................................................6–4
Drum Instruction Types............................................................................................6–4
Timer-Only Transitions .............................................................................................6–4
Timer and Event Transitions .....................................................................................6–5
Event-Only Transitions..............................................................................................6–6
Counter Assignments ...............................................................................................6–6
Last Step Completion...............................................................................................6–7
Overview of Drum Operation ...................................................................................6–8
Drum Instruction Block Diagram ..............................................................................6–8
Powerup State of Drum Registers .............................................................................6–9
Drum Control Techniques.......................................................................................6–10
Drum Control Inputs..............................................................................................6–10
Self-Resetting Drum................................................................................................6–11
Initializing Drum Outputs.......................................................................................6–11
Using Complex Event Step Transitions ...................................................................6–11
Drum Instruction .....................................................................................................6–12
Timed Drum with Discrete Outputs (DRUM)..........................................................6–12
Event Drum (EDRUM) ............................................................................................6–14
Handheld Programmer Drum Mnemonics..............................................................6–16
Masked Event Drum with Discrete Outputs (MDRMD)...........................................6–19
Masked Event Drum with Word Output (MDRMW) ...............................................6–21
VoLuMe Two:
TabLe of conTenTs

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Table of Contents
Chapter 7: RLLPLUS Stage Programming
Introduction to Stage Programming ........................................................................7–2
Overcoming “Stage Fright”......................................................................................7–2
Learning to Draw State Transition Diagrams...........................................................7–3
Introduction to Process States ..................................................................................7–3
The Need for State Diagrams ...................................................................................7–3
A 2–State Process .....................................................................................................7–3
RLL Equivalent..........................................................................................................7–4
Stage Equivalent.......................................................................................................7–4
Let’s Compare..........................................................................................................7–5
Initial Stages.............................................................................................................7–5
What Stage Bits Do ..................................................................................................7–6
Stage Instruction Characteristics...............................................................................7–6
Using the Stage Jump Instruction for State Transitions ..........................................7–7
Stage Jump, Set, and Reset Instructions....................................................................7–7
Stage Program Example: Toggle On/Off Lamp Controller......................................7–8
A 4–State Process .....................................................................................................7–8
Four Steps to Writing a Stage Program ...................................................................7–9
1. Write a Word Description of the application. .......................................................7–9
2. Draw the Block Diagram. .....................................................................................7–9
3. Draw the State Transition Diagram. .....................................................................7–9
4. Write the Stage Program......................................................................................7–9
Stage Program Example: A Garage Door Opener..................................................7–10
Garage Door Opener Example ...............................................................................7–10
Draw the Block Diagram ........................................................................................7–10
Draw the State Diagram.........................................................................................7–11
Add Safety Light Feature ........................................................................................7–12
Modify the Block Diagram and State Diagram .......................................................7–12
Using a Timer Inside a Stage ..................................................................................7–13
Add Emergency Stop Feature .................................................................................7–14
Exclusive Transitions...............................................................................................7–14
Stage Program Design Considerations...................................................................7–15
Stage Program Organization ..................................................................................7–15
How Instructions Work Inside Stages......................................................................7–16
Using a Stage as a Supervisory Process...................................................................7–17

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Table of Contents
Stage Counter........................................................................................................7–17
Power Flow Transition Technique...........................................................................7–18
Stage View in DirectSOFT.......................................................................................7–18
Parallel Processing Concepts...................................................................................7–19
Parallel Processes....................................................................................................7–19
Converging Processes.............................................................................................7–19
Convergence Stages (CV).......................................................................................7–19
Convergence Jump (CVJMP)...................................................................................7–20
Convergence Stage Guidelines...............................................................................7–20
RLLPLUS (Stage) Instructions ....................................................................................7–21
Stage (SG)..............................................................................................................7–21
Initial Stage (ISG) ...................................................................................................7–22
Jump (JMP).............................................................................................................7–22
Not Jump (NJMP)...................................................................................................7–22
Converge Stage (CV) and Converge Jump (CVJMP) ...............................................7–23
Block Call (BCALL)..................................................................................................7–25
Block (BLK).............................................................................................................7–25
Block End (BEND)...................................................................................................7–25
Questions and Answers about Stage Programming ..............................................7–27
Chapter 8: PID Loop Operation
DL06 PID Control.......................................................................................................8–2
DL06 PID Control Features.......................................................................................8–2
Introduction to PID Control......................................................................................8–4
What is PID Control?................................................................................................8–4
Introducing DL06 PID Control ..................................................................................8–6
Process Control Definitions.......................................................................................8–8
PID Loop Operation...................................................................................................8–9
Position Form of the PID Equation............................................................................8–9
Reset Windup Protection........................................................................................8–10
Freeze Bias .............................................................................................................8–11
Adjusting the Bias...................................................................................................8–11
Step Bias Proportional to Step Change in SP ..........................................................8–12
Eliminating Proportional, Integral or Derivative Action ...........................................8–12
Velocity Form of the PID Equation..........................................................................8–12

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Bumpless Transfer ..................................................................................................8–13
Loop Alarms...........................................................................................................8–13
Loop Operating Modes ..........................................................................................8–14
Special Loop Calculations.......................................................................................8–14
Ten Steps to Successful Process Control.................................................................8–16
PID Loop Setup........................................................................................................8–18
Some Things to Do and Know Before Starting .......................................................8–18
PID Error Flags........................................................................................................8–18
Establishing the Loop Table Size and Location .......................................................8–18
Loop Table Word Definitions..................................................................................8–20
PID Mode Setting 1 Bit Descriptions (Addr + 00) ...................................................8–21
PID Mode Setting 2 Bit Descriptions (Addr + 01) ...................................................8–22
Mode/Alarm Monitoring Word (Addr + 06) ...........................................................8–23
Ramp/Soak Table Flags (Addr + 33) .......................................................................8–23
Ramp/Soak Table Location (Addr + 34)..................................................................8–24
Ramp/Soak Table Programming Error Flags (Addr + 35).........................................8–24
Configure the PID Loop..........................................................................................8–25
PID Loop Tuning......................................................................................................8–40
Open-Loop Test .....................................................................................................8–40
Manual Tuning Procedure......................................................................................8–41
Alternative Manual Tuning Procedures by Others...................................................8–44
Tuning PID Controllers...........................................................................................8–44
Auto Tuning Procedure ..........................................................................................8–45
Use DirectSOFT 5 Data View with PID View ...........................................................8–49
Open a New Data View Window............................................................................8–49
Open PID View.......................................................................................................8–50
Using the Special PID Features ...............................................................................8–53
How to Change Loop Modes .................................................................................8–53
Operator Panel Control of PID Modes....................................................................8–54
PLC Modes Effect on Loop Modes..........................................................................8–54
Loop Mode Override..............................................................................................8–54
PV Analog Filter......................................................................................................8–55
Creating an Analog Filter in Ladder Logic...............................................................8–56
Use the DirectSOFT Filter Intelligent Box Instructions ............................................. 8-57
FilterB Example....................................................................................................... 8-57
Ramp/Soak Generator.............................................................................................8–58

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Introduction ...........................................................................................................8–58
Ramp/Soak Table ...................................................................................................8–59
Ramp/Soak Table Flags...........................................................................................8–61
Ramp/Soak Generator Enable.................................................................................8–61
Ramp/Soak Controls...............................................................................................8–61
Ramp/Soak Profile Monitoring................................................................................8–62
Ramp/Soak Programming Errors.............................................................................8–62
Testing Your Ramp/Soak Profile..............................................................................8–62
DirectSOFT Ramp/Soak Example ............................................................................. 8-63
Setup the Profile in PID Setup ................................................................................ 8-63
Program the Ramp/Soak Control in Relay Ladder................................................... 8-63
Test the Profile ....................................................................................................... 8-64
Cascade Control.......................................................................................................8–65
Introduction ...........................................................................................................8–65
Cascaded Loops in the DL06 CPU ..........................................................................8–66
Tuning Cascaded Loops .........................................................................................8–67
Time-Proportioning Control....................................................................................8–68
On/Off Control Program Example..........................................................................8–69
Feedforward Control ...............................................................................................8–70
Feedforward Example.............................................................................................8–71
PID Example Program .............................................................................................8–72
Program Setup for the PID Loop ............................................................................8–72
Troubleshooting Tips...............................................................................................8–75
Glossary of PID Loop Terminology .........................................................................8–77
Bibliography ...........................................................................................................8–79
Chapter 9: Maintenance and Troubleshooting
Hardware System Maintenance ................................................................................9–2
Standard Maintenance .............................................................................................9–2
Diagnostics.................................................................................................................9–2
Diagnostics...............................................................................................................9–2
Fatal Errors ...............................................................................................................9–2
Non-fatal Errors........................................................................................................9–2
V-memory Error Code Locations...............................................................................9–3
Special Relays (SP) Corresponding to Error Codes ....................................................9–3

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DL06 Micro PLC Error Codes....................................................................................9–4
Program Error Codes................................................................................................9–5
CPU Indicators ...........................................................................................................9–6
PWR Indicator ..........................................................................................................9–6
RUN Indicator ..........................................................................................................9–7
CPU Indicator...........................................................................................................9–7
Communications Problems .......................................................................................9–7
I/O Point Troubleshooting........................................................................................9–8
Possible Causes ........................................................................................................9–8
Some Quick Steps ....................................................................................................9–8
Handheld Programmer Keystrokes Used to Test an Output Point.............................9–9
Noise Troubleshooting............................................................................................9–10
Electrical Noise Problems........................................................................................9–10
Reducing Electrical Noise........................................................................................9–10
Machine Startup and Program Troubleshooting ...................................................9–11
Syntax Check .........................................................................................................9–11
Special Instructions.................................................................................................9–12
Duplicate Reference Check.....................................................................................9–13
Run Time Edits .......................................................................................................9–14
Run Time Edit Example ..........................................................................................9–15
Forcing I/O Points ..................................................................................................9–16
Regular Forcing with Direct Access.........................................................................9–18
Bit Override Forcing ...............................................................................................9–19
Bit Override Indicators............................................................................................9–19
Reset the PLC to Factory Defaults...........................................................................9–20
Chapter 10: LCD Display Panel
Introduction to the DL06 LCD Display Panel .........................................................10–2
Keypad .. 10–2
Snap-in installation..................................................................................................10–3
Display Priority ........................................................................................................10–4
Menu Navigation.....................................................................................................10–5
Confirm PLC Type, Firmware Revision Level, Memory Usage, Etc. .......................10–6
Examining Option Slot Contents ............................................................................10–8

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Menu 2, M2:SYSTEM CFG. ....................................................................................10–8
Monitoring and Changing Data Values................................................................10–10
Menu 3, M3:MONITOR ......................................................................................10–10
Data Monitor .......................................................................................................10–10
V-memory values..................................................................................................10–10
Pointer values.......................................................................................................10–12
Bit Monitor ............................................................................................................10–13
Bit status ..............................................................................................................10–13
Changing Date and Time ......................................................................................10–14
Menu 4, M4 : CALENDAR R/W.............................................................................10–14
Setting Password and Locking..............................................................................10–17
Menu 5, M5 : PASSWORD R/W............................................................................10–17
Reviewing Error History.........................................................................................10–20
Menu 6, M6 : ERR HISTORY .................................................................................10–20
Toggle Light and Beeper, Test Keys .....................................................................10–21
Menu 7, M7 : LCD TEST&SET ..............................................................................10–21
PLC Memory Information for the LCD Display Panel ..........................................10–22
Data Format Suffixes for Embedded V-memory Data............................................10–22
Reserved memory registers for the LCD Display Panel..........................................10–23
V7742 bit definitions............................................................................................10–24
Changing the Default Screen................................................................................10–25
Example program for setting the default screen message.....................................10–25
DL06 LCD Display Panel Instruction (LCD)...........................................................10–26
Source of message ...............................................................................................10–26
ASCII Character Codes .........................................................................................10–27
Example program: alarm with embedded date/time stamp .................................10–28
Example program: alarm with embedded V-memory data ...................................10–29
Example program: alarm text from V-memory with embedded V-memory data ..10–30
Appendix A: Auxiliary Functions
Introduction...............................................................................................................A–2
Purpose of Auxiliary Functions..................................................................................A–2
Accessing AUX Functions via DirectSOFT..................................................................A–3
Accessing AUX Functions via the Handheld Programmer..........................................A–3