ICP DAS USA M-7026 User manual

M-7026 User Manual Rev: 1.5 Date: 2016/03/10
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M-7026
User Manual
Warranty
All products manufactured by ICP DAS are under warranty
regarding defective materials for a period of one year from the date
of delivery to the original purchaser.
Warning
ICP DAS assumes no liability for damages resulting from the
use of this product. ICP DAS reserves the right to change this
manual at any time without notification. The information furnished
by ICP DAS is believed to be accurate and reliable. However, no
responsibility is assumed by ICP DAS for its use, nor for any
infringements of patents or other rights of third parties resulting
from its use.
Copyright
Copyright © 2013 ICP DAS. All rights reserved.
Trademarks
Names are used for identification purposes only and may be
registered trademarks of their respective companies.
Date: 2016/03/10

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Table of Contents
1. Introduction.........................................................................................6
1.1 Applications ................................................................................. 7
1.2 More Information......................................................................... 7
1.3 Pin Assignments......................................................................... 8
1.4 Specifications.............................................................................. 9
1.4.1 System Specifications ..................................................... 9
1.4.2 I/O Specifications ........................................................... 10
1.5 Block Diagram........................................................................... 12
1.6 Application Wiring..................................................................... 13
1.7 Default Settings......................................................................... 14
1.8 Calibration.................................................................................. 15
1.8.1 Analog Input.................................................................... 15
1.8.2 Analog Output................................................................. 16
1.9 Configuration............................................................................. 17
1.9.1 Baud Rate Settings (CC)............................................... 17
1.9.2 Analog Input Type Code Settings (TT)....................... 17
1.9.3 Data Format Settings (FF)............................................ 18
1.9.4 Analog Input Type Codes and Data Format.............. 19
1.9.5 Analog Output Type Codes and Data Format........... 20
1.9.6 Analog Output Slew Rate Control................................ 20
1.10M-7000 Notes............................................................................ 21
1.10.1 Protocol Switching.......................................................... 21
1.10.2 INIT Mode........................................................................ 22
2. DCON Protocol................................................................................23
2.1 %AANNTTCCFF....................................................................... 30
2.2 #**................................................................................................ 32
2.3 #AA.............................................................................................. 33
2.4 #AAN........................................................................................... 35
2.5 #AAN(Data) ............................................................................... 36
2.6 $AA0........................................................................................... 38
2.7 $AA0N ........................................................................................ 40
2.8 $AA1........................................................................................... 42
2.9 $AA1N ........................................................................................ 44
2.10$AA2........................................................................................... 46
2.11$AA3NVV................................................................................... 48
2.12$AA4........................................................................................... 50

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2.13$AA4N ........................................................................................ 52
2.14$AA5........................................................................................... 53
2.15$AA5VV...................................................................................... 54
2.16$AA6........................................................................................... 55
2.17$AA6N ........................................................................................ 56
2.18$AA7CiRrr.................................................................................. 58
2.19$AA7N ........................................................................................ 60
2.20$AA8Ci ....................................................................................... 62
2.21$AA8N ........................................................................................ 64
2.22$AA9N ........................................................................................ 66
2.23$AA9NTS................................................................................... 68
2.24$AAB........................................................................................... 70
2.25$AABO........................................................................................ 72
2.26$AAC........................................................................................... 73
2.27$AAE........................................................................................... 74
2.28$AAEnn...................................................................................... 75
2.29$AAF........................................................................................... 76
2.30$AAI ............................................................................................ 77
2.31$AALS......................................................................................... 78
2.32$AAM.......................................................................................... 80
2.33$AAP........................................................................................... 81
2.34$AAPN........................................................................................ 82
2.35$AAS1......................................................................................... 84
2.36~**................................................................................................ 85
2.37~AA0........................................................................................... 86
2.38~AA1........................................................................................... 88
2.39~AA2........................................................................................... 89
2.40~AA3ETT.................................................................................... 91
2.41~AA4........................................................................................... 93
2.42~AA4N........................................................................................ 95
2.43~AA5N........................................................................................ 97
2.44~AA5PPSS ................................................................................ 99
2.45~AAD......................................................................................... 101
2.46~AADVV................................................................................... 103
2.47~AAEV...................................................................................... 105
2.48~AAI.......................................................................................... 107
2.49~AAO(Data)............................................................................. 108
2.50~AARD...................................................................................... 109

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2.51~AARDTT................................................................................. 110
2.52~AATnn .................................................................................... 111
2.53@AACECi................................................................................ 112
2.54@AACH.................................................................................... 114
2.55@AACHCi................................................................................ 115
2.56@AACHi................................................................................... 117
2.57@AACL..................................................................................... 119
2.58@AACLCi................................................................................. 120
2.59@AACLi.................................................................................... 122
2.60@AADACi................................................................................ 124
2.61@AADI...................................................................................... 126
2.62@AADODD.............................................................................. 128
2.63@AAEATCi.............................................................................. 130
2.64@AAHI(Data)Ci....................................................................... 132
2.65@AALO(Data)Ci..................................................................... 134
2.66@AARACi................................................................................ 136
2.67@AARAO................................................................................. 138
2.68@AARECi................................................................................ 140
2.69@AARH.................................................................................... 142
2.70@AARHCi................................................................................ 144
2.71@AARHi................................................................................... 146
2.72@AARL..................................................................................... 148
2.73@AARLCi................................................................................. 150
2.74@AARLi.................................................................................... 152
3. Modbus RTU Protocol..................................................................154
3.1 Function 02 (0x02) - Read the Status of the Digital Input
Channels........................................................................................... 155
3.2 Function 04 (0x04) - Read the Analog Input Channels.... 156
3.3 Function 05 (0x05) - Write to a Single Digital Output
Channel............................................................................................. 157
3.4 Function 06 (0x06) - Write to a Single Analog Output
Channel............................................................................................. 158
3.5 Function 16 (0x10) - Write to Analog Output Channel..... 159
3.6 Function 70 (0x46) - Read/Write the Module Settings..... 160
3.6.1 Sub-function 00 (0x00) - Read the Name of the
Module............................................................................ 161
3.6.2 Sub-function 04 (0x04) - Set the Address of the
Module............................................................................ 162

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3.6.3 Sub-function 05 (0x05) - Read the Communication
Protocol.......................................................................... 163
3.6.4 Sub-function 06 (0x06) - Set the Communication
Protocol.......................................................................... 164
3.6.5 Sub-function 07 (0x07) - Read the Analog Input
Type Code..................................................................... 166
3.6.6 Sub-function 08 (0x08) - Set the Analog Input Type
Code............................................................................... 167
3.6.7 Sub-function 32 (0x20) - Read the Firmware Version
Information..................................................................... 168
3.6.8 Sub-function 37 (0x25) - Read whether an Analog
Input Channel is Enabled or Disabled...................... 169
3.6.9 Sub-function 38 (0x26) –Enable or Disable the
Analog Input Channels................................................ 170
3.6.10 Sub-function 41 (0x29) - Read the Miscellaneous
Settings.......................................................................... 171
3.6.11 Sub-function 42 (0x2A) - Write the Miscellaneous
Settings.......................................................................... 172
3.7 Address Mappings.................................................................. 173
3.8 Engineering Units Data Format Table................................. 177
4. Troubleshooting.............................................................................178
4.1 Communicating with the Module.......................................... 178
4.2 Reading Data........................................................................... 178
5. Appendix.........................................................................................179
5.1 INIT Mode................................................................................ 179
5.2 Dual Watchdog Operation..................................................... 181
5.3 Frame Ground......................................................................... 182
5.4 Node Information Area........................................................... 184
5.5 Reset Status............................................................................ 185

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1. Introduction
The M-7000 series is a family of network data acquisition and
control modules that provide Analog-to-Digital, Digital-to-Analog,
Digital Input/Output, Timer/Counter and other functions. The
modules can be remotely controlled using a set of commands
called the DCON protocol. Communication between the module
and the host is inASCII format via an RS-485 bi-directional serial
bus standard. Baud Rates are software programmable and
transmission speeds of up to 115.2 Kbps can be selected.
A number of M-7000 modules
feature a new design for the frame
ground and INIT switch, as shown
in the figure (rear view). The
frame ground provides enhanced
static (ESD) protection abilities
and ensures that the module is
more reliable. The INIT switch
allows easier access to INIT mode.
Refer to Sections 5.1 and 5.3 for
more details.
The common features of the M-7000 series are as follows:
1. Voltage or Current Input
2. +/-240 Vrms Overvoltage Protection
3. High Resolution: 16-bit
4. 2500 VDC Intra-module Isolation
5. Photocoupler Isolation
6. Support for Relay Outputs
7. DIN-Rail Mountable
8. Dual Watchdog
9. Wide Operating Temperature Range: -25 to +75°C

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1.1 Applications
1. Building Automation
2. Factory Automation
3. Machine Automation
4. Remote Maintenance
5. Remote Diagnosis
6. Testing Equipment
1.2 More Information
Refer to Chapter 1 of the M-7000 Bus Converter User Manual” for
more information regarding the following:
1.1. I-7000 Overview
1.2. I-7000 Related Documentation
1.3. I-7000 Common Features
1.4. I-7000 System Network Configuration
1.5. I-7000 Dimensions

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1.3 Pin Assignments

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1.4 Specifications
1.4.1 System Specifications
Communication
Interface
RS-485
Format
N, 8, 1
Baud Rate
1200 to 115200 bps
Protocol
DCON/Modbus RTU
Dual Watchdog
Yes, Module (1.6 Seconds), Communication
(Programmable)
LED Indicator/Display
System LED Indicator
Yes, 1 LED as Power/Communication Indicator
I/O LED Indicator
-
7-Segment LED Display
-
Isolation
Intra-Module Isolation,
Field-to-Logic
2500 VDC
EMS Protection
ESD (IEC 61000-4-2)
+/-4 kV
EFT (IEC 61000-4-4)
+/-4 kV
Surge (IEC 61000-4-5)
+/-3 kV
Power
Reverse Polarity Protection
Yes
Input Voltage Range
+10 to +30 VDC
Consumption
1.8 W
Mechanical
Dimensions (W x L x H)
72 mm x 123 mm x 35 mm
Installation
DIN-Rail or Wall Mounting
Environment
Operating Temperature
-25 to +75°C
Storage Temperature
-40 to +85°C
Humidity
10 to 95% RH, Non-condensing

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1.4.2 I/O Specifications
Analog Input
Channels
6
Wiring
Differential
Range
±150 mV, ±500 mV, ±1 V, ±5 V, ±10 V
±20 mA , 0 to 20 mA, 4 to 20 mA
(Jumper Selectable)
Resolution
16-bit
Accuracy
Normal Mode
±0.1%
Fast Mode
±0.5%
Sampling Rate
Normal Mode
10 Hz
Fast Mode
60 Hz
Input
Impedance
Voltage
2 MΩ
Current
140 Ω
Common Voltage Protection
+/-200 VDC
Individual Channel
Configuration
Yes
Over current Protection
50 mA max. at 110 VDC
Overvoltage Protection
240 Vrms
Analog Output
Channels
2
Range
+0 to +5 VDC, +0 to +10 VDC, ±5 VDC, ±10 VDC,
+0 to +20 mA, +4 to +20 mA (Jumper Selectable)
Resolution
12-bit
Accuracy
±0.1% of FSR
Output Capacity
Voltage Output Capability
10 V @ 20 mA
Open Wire Detection
Yes, for 4 to 20 mA only
Power-on Value
Yes, Programmable
Safe Value
Yes, Programmable

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Digital Input/Counter
Channels
3
Type
Dry Contact
Sink/Source (NPN/PNP)
Source
Dry
Contact
On Voltage Level
Close to GND
Off Voltage Level
Open
Counter
Max. Count
65,535 (16-bit)
Max. Input
Frequency
50 Hz
Min. Pulse Width
10 ms
Input Impedance
-
Channel-to-Channel Isolation
-
Overvoltage Protection
-
Digital Output
Channels
3
Type
Open Collector
Sink/Source (NPN/PNP)
Sink
Load Voltage
+ 3.5 VDC to + 50 VDC
Max. Load Current
700 mA/Channel
Overvoltage Protection
60 VDC
Overload Protection
Yes
Short-circuit Protection
Yes
Power-on Value
Yes, Programmable
Safe Value
Yes, Programmable

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1.5 Block Diagram

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1.6 Application Wiring

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1.7 Default Settings
The default settings for the M-7026 are:
Module Address: 01
Analog Input Type: Type 08, -10 V to +10 V
Analog Output Type: Type 3, -10 V to +10 V
Protocol: Modbus RTU
Baud Rate: 9600 bps
Checksum disabled
Engineering Units format
Filter set at 60 Hz rejection

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1.8 Calibration
Warning: It is not recommended that calibration be performed until the
process is fully understood.
1.8.1 Analog Input
The Analog Input calibration procedure is as follows:
1. Warm up the module for 30 minutes.
2. Set the Type Code to the type you wish to calibrate. Refer to
Section 2.18 for details.
3. Enable calibration. Refer to Section 2.47 for details.
4. Apply the zero calibration voltage/current.
5. Send the Zero Calibration command. Refer to Section 2.8 for
details.
6. Apply the span calibration voltage/current.
7. Send the Span Calibration command. Refer to Section 2.6 for
details.
8. Repeat steps 3 to 7 three times.
Notes:
1. The calibration voltage/current source should be connected to
channel 0.
2. When calibrating Type Code 0D, the jumper for channel 0 should
be set to the “current input” position.
3. Calibration voltages and currents are shown below.
Calibration Voltage/Current:
Type
Code
08
09
0A
0B
0C
0D
Zero
Input
0 V
0 V
0 V
0 mV
0 mV
0 mA
Span
Input
+10 V
+5 V
+1 V
+500 mV
+150 mV
+20 mA

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1.8.2 Analog Output
The Analog Output calibration procedure is as follows:
1. Warm up the module for 30 minutes.
2. Set the Type Code to the type you wish to calibrate. Refer to
Section 2.23 for details.
3. Enable calibration. Refer to Section 2.47 for details.
4. Set the zero Analog Output voltage/current. Refer to Section 2.5
for details.
5. Check the meter and trim the output until zero output is achieved.
Refer to Section 2.11 for details.
6. Send the Analog Output Zero Calibration command. Refer to
Section 2.7 for details.
7. Set the spanAnalog Output voltage/current. Refer to Section 2.5
for details.
8. Check the meter and trim the output until the span output is
achieved. Refer to Section 2.11 for details.
9. Send the Analog Output Span Calibration command. Refer to
Section 2.9 for details.
Notes:
1. For Analog Output channels, calibration must be performed for
each channel individually, so the calibration voltage/current
source should be connected to the specific channel that is to be
calibrated.
2. When calibrating Types Codes 0 and 1, the jumper for the
corresponding channel should be set to the “current input”
position.
3. Calibration voltages and currents are shown below.
Calibration Voltages/Current:
Type Code
0
1
2
3
4
5
Zero Output
0 mA
4 mA
0 V
0 V
0 V
0 V
Span Output
+20 mA
+20 mA
+10 V
+10 V
+5 V
+5 V

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1.9 Configuration
1.9.1 Baud Rate Settings (CC)
Bits 5:0
Code
03
04
05
06
07
08
09
0A
Baud Rate
1200
2400
4800
9600
19200
38400
57600
115200
Bits 7:6
00: No Parity, 1 Stop Bit
01: No Parity, 2 Stop Bits
10: Even Parity, 1 Stop Bit
11: Odd Parity, 1 Stop Bit
1.9.2 Analog Input Type Code Settings (TT)
Type Code
Analog Input Type
07
+4 to +20 mA
08
+/-10 V
09
+/-5 V
0A
+/-1 V
0B
+/-500 mV
0C
+/-150 mV
0D
+/-20 mA
1A
0 to +20 mA
Note:
When Types Codes 07, 0D or 1A are selected, the jumper for the
corresponding channel should be set to the “current input” position.

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1.9.3 Data Format Settings (FF)
7
6
5
4
3
2
1
0
FS
CS
MS
Reserved
DF
Key
Description
DF
Data Format
00: Engineering Units
01: % of FSR (full scale range)
10: 2’s complement hexadecimal
MS
Mode Settings
0: Normal Mode (16 bits)
1: Fast Mode (12 bits)
CS
Checksum Settings
0: Disabled
1: Enabled
FS
Filter Settings
0: 60Hz Rejection
1: 50Hz Rejection
Note:
Reserved bits should be zero.

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1.9.4 Analog Input Type Codes and Data Format
Type Code
Input Type
Data Format
+F.S
-F.S.
07
+4 to +20
mA
Engineering Units
+20.000
+04.000
% of FSR
+100.00
+000.00
2’s Complement Hexadecimal
FFFF
0000
08
-10 to +10
V
Engineering Units
+10.000
-10.000
% of FSR
+100.00
-100.00
2’s Complement Hexadecimal
7FFF
8000
09
-5 to +5
V
Engineering Units
+5.0000
-5.0000
% of FSR
+100.00
-100.00
2’s Complement Hexadecimal
7FFF
8000
0A
-1 to +1
V
Engineering Units
+1.0000
-1.0000
% of FSR
+100.00
-100.00
2’s Complement Hexadecimal
7FFF
8000
0B
-500 to +500
mV
Engineering Units
+500.00
-500.00
% of FSR
+100.00
-100.00
2’s Complement Hexadecimal
7FFF
8000
0C
-150 to +150
mV
Engineering Units
+150.00
-150.00
% of FSR
+100.00
-100.00
2’s Complement Hexadecimal
7FFF
8000
0D
-20 to +20
mA
Engineering Units
+20.000
-20.000
% of FSR
+100.00
-100.00
2’s Complement Hexadecimal
7FFF
8000
1A
0 to +20
mA
Engineering Units
+20.000
+00.000
% of FSR
+100.00
+000.00
2’s Complement Hexadecimal
FFFF
0000

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1.9.5 Analog Output Type Codes and Data
Format
Type
Code
Output Type
Data Format
Max.
Min.
0
0 to +20
mA
Engineering Units
+20.000
+00.000
2’s Complement Hexadecimal
FFFF
0000
1
+4 to +20
mA
Engineering Units
+20.000
+04.000
2’s Complement Hexadecimal
FFFF
0000
2
0 to +10
V
Engineering Units
+10.000
+00.000
2’s Complement Hexadecimal
FFFF
0000
3
-10 to +10
V
Engineering Units
+10.000
-10.000
2’s Complement Hexadecimal
7FFF
8000
4
0 to +5
V
Engineering Units
+05.000
+00.000
2’s Complement Hexadecimal
FFFF
0000
5
-5 to +5
V
Engineering Units
+05.000
-05.000
2’s Complement Hexadecimal
7FFF
8000
1.9.6 Analog Output Slew Rate Control
0 Immediate Change
1 0.0625 V/Second or 0.125 mA/Second
2 0.125 V/Second or 0.25 mA/Second
3 0.25 V/Second or 0.5 mA/Second
4 0.5 V/Second or 1.0 mA/Second
5 1.0 V/Second or 2.0 mA/Second
6 2.0 V/Second or 4.0 mA/Second
7 4.0 V/Second or 8.0 mA/Second
8 8.0 V/Second or 16 mA/Second
9 16 V/Second or 32 mA/Second
A 32 V/Second or 64 mA/Second
B 64 V/Second or 128 mA/Second
C 128 V/Second or 256 mA/Second
D 256 V/Second or 512 mA/Second
E 512 V/Second or 1024 mA/Second
F 1024 V/Second or 2048 mA/Second