Maple Systems Blue Series User manual

COPYRIGHT NOTICE
This manual is a publication of Maple Systems, Inc., and is provided for use by its customers only. The contents of the
manual are copyrighted by Maple Systems, Inc.; reproduction in whole or in part, for use other than in support of Maple
Systems equipment, is prohibited without the specific written permission of Maple Systems.
WARRANTY
Maple Systems warrants each product to be free from electrical and mechanical defects in materials and workmanship for a
period of two years from the date of shipment. This warranty does not apply to defects in the Products caused by abuse,
misuse, accident, casualty, alteration, negligence, repair not authorized by Maple Systems, use on current or voltages other
than specified by Maple Systems, or application or installation not in accordance with published instruction manuals. This
warranty is in lieu of any other warranty either expressed or implied.
Maple Systems’ liability is limited to the repair or replacement of the Product only, and not costs of installation, removal, or
damage to user’s property or other liabilities. If Maple Systems is unable to repair or replace a nonconforming Product, it
may offer a refund of the amount paid to Maple Systems for such Product in full satisfaction of its warranty obligation.
Maximum liability of Maple Systems is the cost of the Product.
Information furnished by Maple Systems, Inc., is believed to be accurate and reliable. However, no responsibility is assumed
by Maple Systems for the use of this information nor for any infringements of patents or other rights of third parties which
may result from its use. No license is granted by implication, or otherwise, under any patent or patent rights of Maple
Systems, Inc. Maple Systems retains the right to revise or change its products and documentation at any time without notice.
IF SERVICE IS REQUIRED
Package the unit in its original packaging container or, if unavailable, any suitable rigid container. If a substitute container is
used, surround the unit with shock absorbing material; damage in shipment is not covered by the warranty. Include a letter
with the unit describing the difficulty and designating a contact person. Send to the following address: Maple Systems, Inc.,
808 134th Street SW, Suite 120, Everett, WA 98204-7333.
Only Products that have been issued a Return Material Authorization (RMA) number from Maple Systems may be returned.
All RMAs must be accompanied with a written purchase order for tracking purposes or, in the case of out-of-warranty
repairs, for repair charges on a time and material basis.
All returns will be tested to verify customer claims of noncompliance with the product warranty. Improper return packaging,
which makes verification impossible, will void the warranty. Products passing the tests will be returned “AS IS” to the
customer.
If noncompliance is verified and is not due to customer abuse or the other exceptions described with product warranty, Maple
Systems will, at its option, repair or replace the Product returned to it, freight prepaid, which fail to comply with the
foregoing warranty, provided Maple Systems is notified of such noncompliance within the two-year warranty period.
APPLICATIONS ASSISTANCE
This manual is designed to provide the necessary information for trouble-free installation and operation of your new Operator
Interface Terminal (OIT). However, if you need assistance, please call Maple Systems at 425-745-3229 or visit our web site
at www.maple-systems.com.

Table of Contents
Introduction - Welcome ..................1
BlueLeaf Support ..................1
OIT Models Supported ...........1
PLCs Supported ................1
About Your Documentation ..........1
Conventions......................1
What You Need ...................2
OIT Basics .......................3
What is a Blue Series OIT? ........4
List of Features.................5
Chapter 1 - Installation of OITs ............7
Before You Begin .....................7
Unpacking the Unit ................7
Managing Electrostatic Discharge. . . 7
CE Compliance ................7
NEMA Rating ..................7
Environmental Considerations .....7
Safety Precautions ..............8
Control Panel Design Guidelines ......9
Control Panel Grounding .........9
Connect OIT Chassis Ground to Control
Panel ........................9
Power Supply Selection ..........10
Connect the OIT to the PLC .......12
Panel Preparation ..............13
Mount the OIT to the Panel .......14
Configuration Wiring ...............14
Connect the OIT to the PC for Configura-
tion .........................14
Factory Configuration...............16
Chapter 2 - Creating Your First Project ......17
Before You Begin ..................17
Connecting OIT to Computer ......17
Starting BlueLeaf ..................18
Creating a Sample Project ...........19
Selecting the PLC ...............20
Creating Two Screens............20
Creating a Startup Screen ........20
Creating a Second Screen ........23
Finishing Up......................26
Chapter 3 - Using BlueLeaf Software ........29
Overview ........................29
The BlueLeaf Application ............29
Managing Projects ..............30
System Screens ................31
Editing and Creating Screen Objects 32
Basic Editing Commands ............34
Chapter 4 - Basic Operation of the BLU300 . . . 47
Overview ........................47
Using the Left, Right, Top and Down Keys48
Local Setup Menus .................48
Accessing the Local Setup Menus . . . 48
Downloading a Project to the
BLU300 ......................49
Uploading a Project from the BLU30049
Transferring a Project Between Two
BLU300s .....................50
HMI Setup Menu for the BLU300 . . . 51
HMI Configuration Settings .......57
Chapter 5- Creating and Displaying Screens . . 63
Creating Screens ..................63
Opening a Screen ..............63
Creating a New Screen ..........66
Deleting a Screen...............67
Creating a Herald Screen............67
Configuring the Herald Screen .....67
Writing the Screen Number to a PLC
Register .........................68
How to Display Screens .............69
Jump to Screen Feature ..........69
Displaying screens using function
keys .........................71
Displaying screens using the up/down
arrow keys ....................71
Displaying Screens Using the System
Parameter Setting .................71
Chapter 6 - Creating Graphics Objects ......73
Drawing Objects ..................73
Using the Drawing Tools .........73
Using Text ....................79
Predefined Bitmaps ................81
Using a Predefined Bitmap ........81
Creating Custom Bitmaps.........82
Chapter 7 - Using Dynamic Objects .........83
Representing PLC Coil Registers .......83
The Bit Lamp Object.............83
The Word Lamp Object ..........84
The Multi-State Bitmap w/Label
Object .......................87
The Clock Display Object .........89
The Dynamic Messages Object .....92
Chapter 8 - Entering/Displaying Numeric and
ASCII Characters .......................95
Representing PLC Data Registers ......95
The Numeric/ASCII Display Object . . 95
The Numeric Input Object ........97
Displaying and Using the Numeric Entry
Screen ..........................100
Chapter 9 - Using The Function Keys ........105
The Button Object .................105
Using the Button Object ..........105
The Function Key Editors ............107
Using the Global Function Key Editor 107
Using the Local Function Key Editor . 109
Chapter 10 - Bar Graphs, Meters, Trends and XY
Plots .................................113
Creating Bar Graphs ...............113

Creating Analog Meters .............115
Creating Trend Displays .............117
Creating XY Plots ............119
Chapter 11 - Using Alarms ...............123
Using Alarms .....................123
Monitoring Alarms with the Alarm
LED Editor .................123
Monitoring Alarms with the Alarm Buzzer
Editor.....................125
Displaying Alarms using the Dynamic
Message Object .............127
Chapter 12 - Using a Memory Stick .........133
Copying a project from the BLU300 to the
PCC............................133
Copying a project from the PCC to the
BLU300 .........................134
Appendix A - Specifications ...............137
BLU300M: .......................137
Display ...................137
Hardware .................137
Mechanical ................137
Environment................137
Certifications ...............137
Power Requirements..........137
Communications ............138
Memory Stick Support ........138
Keypad ...................138
Available Keys ..............138
Screens ...................138
Graphics Libraries ...........138
Text ......................138
Bar Graphs ................139
Meters ....................139
PLC Register Control .........139
Alarms ....................139
Additional Features ..........139
Appendix B - Dimensional Outlines & Panel
Cutout ...............................141
1010-0300, Rev 02
ii Blue Series Installation & Operation Manual

Introduction - Welcome
Welcome to the Maple Systems’ BLU300 Series of Operator Interface Terminals (OITs). The BLU300 is a low cost,
easy-to-use graphical operator interface with membrane-style keypad. The BLU300 connects to programmable logic
controllers (PLCs) to provide the human-machine interface in industrial applications. The BLU300 Series has several
features not found in other low cost OITs. This manual explains the operation of the BLU300 Series OITs and how to
implement the many available features using the BlueLeaf Configuration Software.
BlueLeaf Support
OIT Models Supported
The BlueLeaf configuration software supports the BLU300 operator interface terminal which is a 128x64 pixel backlit LCD
display with five function keys and control keys. It is specifically designed for applications in which a small yet robust user
interface is required.
PLCs Supported
For the latest list of PLCs and controllers supported by the BLU300Series OITs, please visit our website.
About Your Documentation
Maple Systems provides many resources to allow you to get the most out of your BLU300 Series OIT.
•BLU300 Series Operation Manual (shipped with BlueLeaf software as a PDF file) - describes installation,
general operation and features of the BLU300 Series and how to configure it using the BlueLeaf
configuration software.
•Controller Information Sheets - important information specific to each supported protocol.
•BlueLeaf On-line Help - covers the operation of the BlueLeaf software. Always available by clicking
Contents from the Help menu in BlueLeaf.
For more information about these and other training sources, visit the Maple Systems web site at:
http://www.maple-systems.com
Conventions
When using BlueLeaf software, there are usually several ways to perform a task. For example, if you want to copy a graphics
object, you can:
•Click the Copy command on the Edit menu.
•Click the Copy button on the Standard toolbar.
•Press the CTRL + C keys on your computer.
In most cases, we will describe each method when the task is first discussed. The menu method is then used whenever the
task is used in later procedures. Other conventions used in this book are listed in the following table.
1010-0300, Rev 02
Introduction 1

Convention Meaning
Bold Characters that you must type exactly as they appear. For example, if you are directed to type
a:\setup, you should type all the bold characters exactly as they are printed.
Italic
Placeholders for information you must provide. For example, if you are directed to type filename, you
should type the actual name for a file instead of the word shown in italic type. Italics are also used to
indicate a glossary term.
ALL
CAPITALS Directory names, file names, key names, and acronyms.
KEY1+KEY2 A plus sign (+) between key names means to press and hold down the first key while you press the
second key.
click Refers to clicking the primary mouse button (usually the left mouse button) once.
Double-click Refers to quickly clicking the primary mouse button (usually the left mouse button) twice.
Right-click Refers to clicking the secondary mouse button (usually the right mouse button) once. Right-clicking
usually opens shortcut menus.
The following table identifies symbols and margin icons.
Icon Meaning
4Identifies a procedure.
4Indicates a reference to additional information.
*Indicates an important note.
What You Need
The following items are needed to configure and operate your OIT.
Configuration Software BlueLeaf
Configuration Cable 7431-0102
Personal Computer1User provided
Power Cable 6030-0009
24VDC Power Supply User Provided (for details refer to Appendix A: Specifications)
PLC User Provided
Controller Information Sheet
Maple Systems provides Controller Information Sheets, which contain important
information specific to each PLC. Please locate the sheet that corresponds to your
PLC on our website.
Communication Cable
(OIT to PLC)
Maple Systems manufactures custom cables of any length to connect the BLU300 to
your PLC. Please visit our website for a complete list of available cables or build your
own using the cable diagrams located there: www. maple-systems.com.
1Computer requirements include at least a Pentium 90Mhz PC, 16MB RAM, 10MB available hard disk space, VGA video
controller, Microsoft Windows 95 or higher, and one available RS-232 serial port.
1010-0300, Rev 02
2 Blue Series Installation & Operation Manual

OIT Basics
Operator Interface Terminals (OITs) provide much more versatility than traditional mechanical control panels. An OIT
allows a plant floor operator to monitor current conditions of a control system and, if necessary, to initiate a change in the
operation of the system. OITs connect to programmable logic controllers (PLCs) typically through the PLC’s serial
communications port. The OIT can be programmed to monitor and/or change current values stored in the data memory of the
PLC.
OITs can have either text-based or graphics-based displays. A text-based OIT can display printable text characters but no
graphics. Some text-based OITs can display text characters in various sizes. A graphics-based OIT can display printable text
characters of varying fonts and sizes and graphics shapes such as icons, bitmaps, or pictures. Using pictures instead of words
or characters often greatly simplifies the operation of the OIT, making the OIT much more intuitive to use.
Some OITs use touch screen displays while others use a membrane-style keypad. Membrane-style keyboards are best used in
applications in which the keypad is likely to become dirty.
The Maple Systems BLU300 Series OITs are graphics-based membrane-style keypad OITs. Before we get any further into
the operation of these OITs, it is necessary to define some terms that will be used throughout this manual.
Projects
The OIT has two basic segments of internal memory. The code memory contains the information required by the OIT that
controls how it operates such as the features supported and how it communicates to a PLC. The OIT programmer does not
have the ability to change code memory. The project memory pertains to all of the screens created and any other features that
the OIT programmer can create using the BlueLeaf configuration software. Therefore, the term project is used to designate
the file that is sent to the OIT from the BlueLeaf software.
Objects
An object is any action that the OIT performs while it is communicating to the PLC. In order to get the operator interface
terminal to ‘do anything’, you must program the OIT with objects. Objects perform actions such as display text or graphics,
write a value to a PLC register, or display a message. Objects most often are graphics shapes that are to be displayed on the
OIT screen. For example, a Text Object is used to display text on the OIT. But objects are also used to configure the OIT to
perform some action. For example, a Jump To Screen Object tells the OIT to continuously monitor a PLC register that is
used by the PLC to request a new screen. Some objects can display a graphics shape on the OIT screen and perform some
action. For example, a Function Key Object creates a graphic object on the OIT that indicates the current state of a PLC
register, when the tagged function key is pressed on the OIT.
Graphics Object
Agraphics object is any text, icon, or picture that can be displayed on the OIT. Graphics objects are further defined by how
they are composed or created. A Text Object is a graphics object that displays text on the OIT screen. A Bitmap Object is a
graphics object that displays a bitmap on the OIT screen. Bitmaps are files stored in the OIT to display pictures. Bitmaps
use a pixel-based file format.
Screens
Ascreen is a window of information that can be displayed on the OIT. Screens can appear on the OIT display by a request
from the PLC or by a press from the OIT’s keypad. Each screen can display graphics objects and there is no limit to the
number of graphics objects that can be placed on each screen. The BLU300 Series is capable of storing up to 999 screens ,
but the actual limit is determined by the total amount of memory used for the application (maximum of 256Kbyte). A more
in-depth discussion of screens is covered in later chapters.
1010-0300, Rev 02
Introduction 3

What is a Blue Series OIT?
The Blue Series OITs by Maple Systems are graphics operator interfaces designed to connect to PLCs in an industrial
environment. The 3.0” LCD displays are backlit and have a resolution of 128x64 pixels. The membrane-style keypad is
composed of five function keys (ten with the SHIFT key) and control keys to facilitate entering data. The Blue Series has a
built-in clock for displaying time/date and sending this data to the PLC.
LED Indicator Purpose
ALARM LED (red) indicates alarm conditions by the PLC
The Blue Series OIT has two serial ports that provide a connection to a PLC using RS-232, RS-422 or
two wire RS-485. The RS-232 serial port is also used to configure the BLU300.
The Blue Series is powered using +24VDC. Local setup menu allows adjustment of the LCD contrast, a back light saver,
adjustment of the internal clock, and silencing the internal buzzer.
There is currently one model in the Blue Series.
Model Display
Size Resolution LCD Type Keys Clock
BLU300M 3.0” 128 x 64
STN LCD with
green LED back
light
5 function keys
(10 with Shift)
Built-in with field-replaceable
battery
Finally, the Blue Series is powered by a 25 MHz, 16-bit microprocessor with 256K Byte of flash memory and 32K Byte of
RAM. The Blue Series is designed for industrial environments and carries a NEMA 4 rating as well as CE compliance for
noise immunity and emissions. It is UL listed.
1010-0300, Rev 02
4 Blue Series Installation & Operation Manual
Front View Back View
BLU300M

List of Features
The next chapter will guide you through the creation of your first project. Before you proceed, you may wish to read this
brief list of some of the features offered in the Blue Series OIT.
Icon
Bit Lamp Creates a graphics object to reflect the current status of a PLC bit.
Word Lamp Creates a graphics object to reflect the current state of a multi-state PLC data register.
Multi-state Bit
Lamp
Creates a multi-state bitmap object that changes state (picture) according to the value in a
PLC data register. The PLC register can be a coil or 16/32 bit register. Up to 255 states
available.
Bar Graph Creates a bar graph that represents a 16/32 bit PLC register.
Analog Meter Creates an analog meter that represents a 16 bit PLC register.
Function Key Creates a bitmap object, which changes state according to the press of a function key.
Numeric ASCII
display Displays ASCII characters or numbers stored in a PLC register.
Numeric Input Displays a number stored in a PLC register. The number can be changed using the OIT’s
numeric entry screen.
Dynamic
Messages Displays text messages according to a value in a PLC register.
Clock Object Displays the time and/or date using the built-in clock or data from six consecutive PLC
registers.
Text Object Displays text or symbol characters using windows fonts.
Bitmap Object Displays a predefined or imported bitmap.
Line Draws a line.
1010-0300, Rev 02
Introduction 5

Rectangle
(outline)
Draws a rectangle or square outline.
Circle
(outline)
Draws a circle or ellipse outline.
Curve Draws a curve.
Chord
(outline)
Draws a chord outline.
Sector
(outline) Draws a sector outline.
Polygon Draws a polygon shape.
Unit of Measure Displays most common units of measure.
Scale Used to display scales (for bar graphs).
Trend Display Creates a trend display to monitor changes to a register.
XY Plot Creates an XY plot to plot various data points.
Rectangle
(Solid) Draws a filled-in rectangle or square.
Circle
(Solid) Draws a filled-in circle or ellipse.
Chord
(Solid) Draws a filled-in chord.
Sector
(Solid) Draws a filled-in sector.
1010-0300, Rev 02
6 Blue Series Installation & Operation Manual

Chapter 1 - Installation of OITs
Before You Begin
Please read the following for proper handling of your new OIT.
Unpacking the Unit
Carefully unpack the OIT. Please read any instructions or cautions that appear on the shipping container. Check all material
in the container against the enclosed packing list. Maple Systems, Inc. will not accept responsibility for shortages against the
packing list unless notified within 30 days. The equipment and its accessories were inspected and tested by Maple Systems
before shipment; all of the equipment should be in good working order. Examine the equipment carefully; if any shipping
damage is evident, notify the carrier immediately. You are responsible for claim negotiations with the carrier. Save the
shipping container and packing material in case the equipment needs to be stored, returned to Maple Systems, or transported
for any reason.
Managing Electrostatic Discharge
It is best NOT to remove the rear enclosure of the OIT. When the rear part of the enclosure is removed, the circuitry inside is
exposed to possible damage by electrostatic discharge during handling. Minimize the possibility of electrostatic discharge
by:
• Discharging personal static by grounding yourself prior to handling the OIT
• Handling the OIT at a static-free grounded workstation
• Connecting the frame ground () connector of the OIT to a clean earth ground
• Placing the OIT in an anti-static bag during transport
CE Compliance
The Blue Series OITs have been tested to conform to European CE requirements per Council Directive 89/336/EEC. The
European Union created these requirements to ensure conformity among products traded in those countries. Specifically, the
Blue Series OITs meet or exceed the noise emissions and immunity requirements as set forth in the EN50081 (Emissions)
and EN50082 (Immunity) standards. These products are designed to withstand electrical noise in harsh industrial
environments. They also conform to requirements that limit electrical emissions. However, this does not guarantee that the
products will be totally immune from possible malfunction in cases where severe electrical noise occurs. Therefore, we
strongly recommend that you follow the guidelines outlined in this chapter for proper wire routing and grounding to insure
the proper operation of the Blue Series OIT.
NEMA Rating
The Blue Series OITs are rated for NEMA 4/12 or IP65 installations. This means that when the OIT is properly mounted to a
panel or other enclosure, the front enclosure of the OIT will provide protection to the inside of the panel from splashing
water, wind blown dust, rain, or hose-directed water. The OIT must be installed according to the instructions in this chapter
to be properly sealed.
Environmental Considerations
The Blue Series is designed to operate in temperatures from 0-50° C. It is intended primarily for indoor installations and may
not be suitable for certain outdoor applications. Avoid installing the Blue Series in environments with severe mechanical
vibration or shocks. Do not install the OIT in enclosures with rapid temperature variations or high humidity. Either may
cause condensation of water inside the device and eventual damage to the OIT.
1010-0300, Rev 02
Installation of OITs 7

Safety Precautions
Please observe the following precautions when installing the Blue Series OIT. Failure to comply with these restrictions
could result in loss of life, serious personal injury, or equipment damage.
Warning: Do not operate the OIT in areas subject to explosion due to flammable gases, vapors, or
dusts.
Warning: Do not connect the OIT to an AC power source. You will cause permanent damage to
the OIT.
Warning: Do not attempt to use a DC power supply that does not meet OIT power requirements.
You may cause malfunction or permanent damage to the OIT.
Warning: Do not power the OIT with a DC power supply used for inductive loads or for input
circuitry to the programmable logic controller. Severe voltage spikes caused by these devices may
damage the OIT.
1010-0300, Rev 02
8 Blue Series Installation & Operation Manual

Control Panel Design Guidelines
Pay careful attention to the placement of system components and associated cable routing. These items can significantly
enhance the performance and integrity of your control application.
Control Panel Grounding
The control panel should be connected to a good, high-integrity earth ground both for safety considerations and shielding
purposes. Maple Systems cannot overemphasize the importance of good grounding. If you fail to use good grounding
procedures during installation, sporadic malfunction of the OIT may occur:
• Connect the OIT’s chassis ground terminal to a reliable earth ground with a low-resistance path.
•Route all earth ground wires that lead from the OIT, the PLC, the power supply, and the line filter to a central
earth ground point such as a barrier strip. This will ensure that no ground current from one device influences
the operation of the other devices.
•Connect the OIT chassis ground terminal to the control panel door using a heavy-gauge short braided cable
or ground wire to minimize resistance.
•Connect the power cable’s shield wire to the OIT’s chassis ground terminal.
•Connect the control panel to earth ground using a copper grounding rod close to the OIT and control panel.
Hinged doors on control panels do not provide a long-term electrical connection to the rest of the enclosure. Corrosion
develops over time and prevents good electrical contract. For this reason, a separate wire braid should be installed from the
hinged control panel to the rest of the enclosure.
For a more in-depth overview of ground wiring techniques, refer to technical note #1027, OIT Ground Wiring and Electrical
Noise Reduction, which you can find at www.maple-systems.com.
Connect OIT Chassis Ground to Control Panel
To reduce the possibility of electrical interference, connect the chassis ground terminal of the OIT to a clean earth ground. If
the control panel is metal, make sure it is properly grounded. Then connect a short heavy-gauge wire (#18 AWG) from the
chassis ground terminal of the OIT to a mounting bolt on the control panel door. The mounting bolt must have good
electrical contact to the control panel; scrape away any paint that may be covering the panel to provide a good connection.
1010-0300, Rev 02
Installation of OITs 9
Shielded DB9P
male connector
+24V
0V
+
-
BATTERY
EXTENSION
PORT
RS-485
I / O control lines
PLC/Host
Ground wires
(rear side)
OIT is
grounded to
control panel
Ground
strap
Power
line
filter
Quiet ground
(isolated)
Quiet ground
Line
Filter
OIT
Power
Supply
Shielded power cable
Shielded
communication
cable
Control panel is
tied to a reliable
earth ground
OIT
Control Panel Example

If the control panel is made of a non-conductive material, it is essential that you connect the chassis ground terminal of the
OIT to a clean earth ground point located close to the panel.
Power Supply Selection
The power supply used to power the OIT should provide an output of +24 VDC 5% measured at the OIT power terminal
block. A 24VDC regulated power supply dedicated to the OIT is required (refer to Appendix A: Specifications for the input
current requirements).
The power cable for the OIT should be 18AWG, 2-conductor wire with a shield drain wire and protective shield (foil or
braid). The shield drain wire must be connected to earth ground at both ends of the cable. Please refer to the Connect the OIT
to Power section for more information.
A power line filter installed at the AC input to the OIT power supply is highly recommended as a safeguard against
conducted RF noise, which is often present on factory power lines. The wires connecting the output of the power line filter to
the power supply should be kept as short as possible to minimize any additional noise pickup. The case of the power line
filter should be connected to a quiet earth ground. The power line filter should have a current rating of at least 1 Amp with
common mode and differential mode attenuation.
1010-0300, Rev 02
10 Blue Series Installation & Operation Manual
BLU300
(rear side)
Stud or screw
Control panel
(connected to
earth ground)
Area on panel
free of paint
Shielded DB9P
male connector
+24V
0V
+
-
BATTERY
EXTENSION
PORT
RS-485
OIT Chassis Ground Connection

Do not use the power supply used to provide power to the OIT to power switching relays, solenoids, or other active devices.
4STEPS:
1. Connect the power cable to the OIT as follows:
A. Strip the power cable shield to expose 2” of the black and red wires.
B. Strip about ¼” of insulation from the black and red wires.
C. Thread the black and red wires through the ferrite core. The shield wire must be outside.
D. Connect the red wire to the DC positive (+) input of the OIT power terminal.
E. Connect the black wire to the DC negative (-) input of the OIT power terminal.
F. Connect the power cable shield wire to the OIT power terminal’s chassis ground input.
2. Route the power cable to the OIT power supply. The power cable should not be any longer than
necessary.
3. Install the power supply wires as follows (with colors shown for Maple Systems cable P/N
6030-0009):
Color Power Supply BLU300 Label
Red +Output/+24 V dc +24V
Black -Output/+24V dc return 0V
Shield Case ground 0FG
1010-0300, Rev 02
Installation of OITs 11
+24V
0V
+
-
BLU300 OIT
(rear side) 24Vdc
power supply
Control
panel
Shield wire (bare)
Black wire (-)
Red wire (+)
Ferrite coil
Shield wire runs
outside ferrite coil
120Vac
Black
Shield drain
Red
FG
DC Output -V (Gnd)
DC Output +V (+24V)
OIT Power Inputs

*The power connector on the BLU300 Series is a terminal block with wire clamps. Lugs are not
required.
Connect the OIT to the PLC
Each PLC supported by Maple Systems has its own wiring requirements. Maple Systems offers OIT-to-PLC communication
cables for most PLCs that are built to any length and tested for high reliability. Most cables are available for next-day
shipment from Maple Systems. Components and instructions necessary to construct your own OIT-to-PLC communications
cables are also available. Refer to Maple Systems’ website.
Port 1
RS-232/RS422
Port 2
RS-485
Pin # Function Pin # Function
1 (no connection) + RXD+/TXD+
2 RXD - RXD-/TXD-
3 TXD
4 (no connection)
5 GND
6 RX (+)
7 RX (-)
8 TX (+)
9 TX (-)
Pinout for the OIT Ports
Selecting RS-422 or RS-485:
•Remove battery cover on rear cover and set dip switches as follows:
RS-485 RS-422
1-4 (on) 1-4 (off)
5-8 (off) 5-8 (on)
1010-0300, Rev 02
12 Blue Series Installation & Operation Manual

4STEPS:
1. Connect the “HMI” end of the communication cable into either the RS-232/RS422 port or the RS-485
port as required for your application (HMI housing is marked).
2. Tighten the two cable screws at each end to ensure shield ground path.
3. Route the communication cable to the PLC. Refer to the “OIT Cable Routing” section for more
information.
4. Connect the “PLC” end of the cable to the PLC and tighten the cable screws.
5. Connect the green shield wire from the cable to earth ground (0) on the PLC. If this wire is not
present, make the ground connection inside the PLC connector.
Panel Preparation
A metal panel or mounting surface with a minimum thickness of 15 gauge (0.059 inch/3.3mm) if cold-rolled steel or
hardened steel, or 10 gauge (0.101 inch/2.6mm) if aluminum alloy (6061-T6 preferred) is required. Thinner panels or
surfaces may bow between the mounting clamps and not form a seal with the gasket.
The area of the panel or mounting surface where the gasket comes into contact must be flat and free of scratches, pits, and
other features that prevent the gasket from sealing properly. If the panel or mounting surface is not uniform, thick, flat, stiff,
or smooth enough, then a sealant such as silicone may be required.
*Clean and deburr the panel cutout before the OIT is installed.
1010-0300, Rev 02
Installation of OITs 13
+24V
0V
+
-
BATTERY
EXTENSION
PORT
RS-485
OIT
Power
Supply
Port 1
Port 2
Control panel
Power & 485 Comm. connector
5-Pin Phoenix removable terminal
block connector, 0. 20” [5.08mm] ctrs.
Shielded power cable
2-Wire RS485
Communication cable specific fo
r
the PLC/Host; twisted pair, foil
shielded, 28AWG minimum
Attach earth ground wire
(if included on cable)
Output
PLC[RS-232]/[RS-422]
PC[RS-232]
PLC[RS-485]
PLC/
Host
Earth
GND
Tighten all screws
FG
Port 1, PC[RS-232]/PLC[RS232]/PLC[RS422],
has a shielded male DB9P connector
WARNING
The OIT requires a stiff, flat, smooth mounting surface
free of blemishes to seal properly to NEMA 4.

Mount the OIT to the Panel
4STEPS:
1. Prepare the four screw clamps for the BLU300 by inserting the clamps into the slots of the back
enclosure as show in the illustration above.
2. Snap the OIT into the panel cutout using the plastic brackets of the back enclosure. Make sure that all
metal clamps are properly in position.
3. Tighten the screw clamps until all are uniformly snug.
CAUTION: Do not over-tighten the screws beyond snugness, or you may damage the housing.
REINSTALLATION: Because the gasket will take a “set” to the panel, be sure to reinstall the OIT to the same panel cutout
when a NEMA 4 seal is required. For best results, also replace the gasket itself.
Configuration Wiring
The OIT must be configured for a particular protocol before use. The BlueLeaf software (used on a PC with Windows 95 or
higher) is used for configuring the OIT. For detailed instructions on installing and using the software, please refer to the
software documentation section of this manual.
Connect the OIT to the PC for Configuration
To configure the OIT using Maple System’s configuration software, you will need the OIT Configuration Cable, Maple P/N
7431-0102. Connect the end marked “HMI” into the RS-232 port on the OIT and connect the end marked PC into the proper
1010-0300, Rev 02
14 Blue Series Installation & Operation Manual
Installing the Screws on the OIT

COM port on your PC. See the figure below for serial port pin assignments and the next two figures for connecting the
BLU300 series to a PC.
1010-0300, Rev 02
Installation of OITs 15
CTS
DSR
RTS
DCD
DTR
8
7
6
4
1
5
RXD
TXD
Return
2
3
9S
OIT
PC
GND5
TXD
3
RXD2
9S
Solder shield wire to the DE9P connector metal shell. Install
heatshrink tubing over the shield wire to avoid shorting.
1
NOTES:
1
OIT END PC END
DE9S
Connector
4 Conductor
24 AWG Shielded cable
DE9S Connector
& DE9 Backshell
4-40 x 1/2 Retainer
Screw, 2 places
DE9 Backshell
4-40 x 1/2 Retainer
Screw, 2 places
BLU300 SERIES CONFIGURATION CABLE

Factory Configuration
Each OIT arrives from the factory without a project file in the OIT. To use the OIT, you must first create a project , then
download the project to the BLU300. Please follow the directions enclosed in Chapter 2, Creating Your First Project,to
configure your OIT for the PLC that you are using.
Each OIT has local setup menus that allow you to adjust some of the settings of the BLU300. Use the local setup menu to:
• Set OIT comm port settings
• Adjust the contrast setting of the LCD display
• Set a time interval for the back light saver
• Set the internal clock
• Enable the internal buzzer
• Select language
• Assign a password to prevent unauthorized access of the local setup menus
• Assign the startup screen
The BLU300 comes with a CR2032 battery for the built-in clock. If the battery needs replacing, please follow the steps
below:
4To change the clock battery:
1. Use a small screwdriver to remove the battery cover on the back enclosure of the OIT.
2. Push the metal side lever to spring the battery loose.
3. Install a new lithium battery (CR2032) into the battery socket, ensuring the + side of the battery is
facing up.
4. Snap the battery cover onto the back enclosure of the OIT.
5. Reset the time, day of week, and date of the clock by entering the local setup menus (see Chapter 4:
Basic Operation of the BLU300).
1010-0300, Rev 02
16 Blue Series Installation & Operation Manual
OIT Power Supply
Output
FG
DC Output -V (Gnd)
DC Output +V (+24V)
PC
Com2 Com1
Printer
Maple Systems OIT
programming cable,
P/N 7431-0102
(If mouse is using
Com 1, use Com2)
Shielded DB9P
male connector
+24V
0V
+
-
BATTERY
EXTENSION
PORT
RS-485
BLU300M
Connectin
g
the BLU300M to a PC
Shield
(outside ferrite core)