ICPDAS I-7000, M-7000, M-7084 User Manual

1

M-7084

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, or for any infringements of patents or other
rights of third parties resulting from its use.

Copyright

Copyright 1999 - 2012 ICP DAS. All rights reserved.

Trademark

The names used for identification only may be registered
trademarks of their respective companies.

Date: 2019/3/4

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Table of Contents

1. Introduction ...................................................................................... 5

1.1 More Information ..................................................................... 6

1.2 Terminal Assignment ............................................................... 7

1.3 Specifications ........................................................................... 8

1.3.1 I/O Specifications ............................................................ 8

1.3.2 System Specifications ..................................................... 9

1.4 Block Diagram ....................................................................... 10

1.4.1 Block Diagram for the M-7084 ..................................... 10

1.5 Dimensions ............................................................................. 11

1.6 Wiring ..................................................................................... 12

1.6.1 M-7084 Wiring .............................................................. 12

1.6.2 Wiring Recommendations ............................................. 12

1.7 Quick Start .............................................................................. 13

1.8 Default Settings ...................................................................... 15

1.9 Configuration Tables .............................................................. 16

1.10 M-7000 Notes ....................................................................... 20

1.10.1 Protocol Switching ...................................................... 20

1.10.2 INIT Mode ................................................................... 21

1.11 Mounting .............................................................................. 22

1.11.1 Din-Rail Mounting ...................................................... 22

1.11.2 Piggyback Mounting ................................................... 24

1.11.3 Wall Mounting ............................................................ 25

1.12 Technical Support ................................................................ 26

2. DCON Protocol .............................................................................. 27

2.1 %AANNTTCCFF .................................................................. 31

2.2 #AA ........................................................................................ 34

2.3 #AAN ..................................................................................... 35

2.4 $AA0N ................................................................................... 37

2.5 $AA0N(Data) ......................................................................... 39

2.6 $AA2 ...................................................................................... 41

2.7 $AA3N ................................................................................... 43

2.8 $AA3N(Data) ......................................................................... 45

2.9 $AA4 ...................................................................................... 47

2.10 $AA4VV .............................................................................. 49

2.11 $AA5 .................................................................................... 51

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2.12 $AA5VV .............................................................................. 53

2.13 $AA6 .................................................................................... 55

2.14 $AA6N ................................................................................. 57

2.15 $AA7 .................................................................................... 59

2.16 $AA7VV .............................................................................. 61

2.17 $AA7CNRVV ...................................................................... 63

2.18 $AA8CN ............................................................................... 65

2.19 $AAF .................................................................................... 67

2.20 $AAI ..................................................................................... 68

2.21 $AAM ................................................................................... 70

2.22 $AAP .................................................................................... 71

2.23 $AAPN ................................................................................. 73

2.24 @AABB ............................................................................... 75

2.25 @AABBVV ......................................................................... 77

2.26 @AAFA ............................................................................... 79

2.27 @AAFAVV .......................................................................... 81

2.28 @AAFH ............................................................................... 83

2.29 @AAFHVV .......................................................................... 85

2.30 @AAFT ................................................................................ 87

2.31 @AAFTVV .......................................................................... 89

2.32 @AAGN ............................................................................... 91

2.33 @AAPN(Data) ..................................................................... 93

2.34 @AASC ................................................................................ 95

2.35 @AASCVV .......................................................................... 97

2.36 ~** ........................................................................................ 99

2.37 ~AA0 .................................................................................. 100

2.38 ~AA1 .................................................................................. 102

2.39 ~AA2 .................................................................................. 104

2.40 ~AA3EVV .......................................................................... 106

2.41 ~AAI ................................................................................... 108

2.42 ~AAO(Name) ..................................................................... 110

2.43 ~AARD ............................................................................... 112

2.44 ~AARDVV ......................................................................... 114

2.45 ~AATnn .............................................................................. 116

3. Modbus RTU Protocol ................................................................. 119

3.1 M-7084 Modbus Address Mapping ..................................... 120

4. Troubleshooting ............................................................................ 122

4.1 Communicating with the module ......................................... 123

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A. Appendix ..................................................................................... 124

A.1 INIT Mode ........................................................................... 124

A.2 Dual Watchdog Operation ................................................... 126

A.3 Frame Ground ...................................................................... 127

A.4 Node Information Area ....................................................... 129

A.5 Reset Status ......................................................................... 130

A.6 Frequency Measurement ..................................................... 131

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Some 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
protection (ESD) abilities and
ensures the module is more
reliable. The INIT switch
allows easier access to INIT
mode. Please refer to Sections
A.1 and A.3 for more details.

1. Introduction

The I-7000 series is a family of network data acquisition and
control modules, providing 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,
which we call the DCON protocol. Communication between
the module and the host is in ASCII format via an RS-485 bi­directional serial bus standard. Baud Rates are software
programmable and transmission speeds of up to 115.2 Kbps
can be selected.

The functionality of the M-7000 series is the same as the I­7000 series, with the exception that the M-7000 series offers
extended support for the Modbus RTU protocol.

The M-7084 supports up counting, up-down counting, pulse
direction counting, quadrature counting and frequency
measurement.

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1.1 The 7000 Series Overview

1.2 Related Documentation for the 7000 Series

1.3 Common Features of the 7000 Series

1.4 The 7000 Series System Network Configuration

1.5 7000 Dimensions

1.1 More Information

For more information regarding the I-7000/M-7000 series,
please refer to chapter 1 of the “I-7000 Bus Converter User‟s
Manual” as shown below or visit the ICP DAS website

http://www.icpdas.com.

 For details of INIT mode operation, please refer to

Section A.1 INIT Mode.

 For details of module watchdog and host watchdog,

please refer to Section A.2 Dual Watchdog Operation.

 For details of ESD protection and grounding, please

refer to Section A.3 Frame Ground.

 The node information area can be written with some

information, please refer to Section A.4 Node Information
Area for details.

 There is a way to check whether the module is reset,

please refer to Section A.5 Reset Status for details.

 For details of frequency measurement, please refer to

Section A.6 Frequency Measurement.

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1.2 Terminal Assignment

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Counter/Frequency/Encoder Input

Channels

4-channel Up/Down Counter (CW/CCW)
4-channel Direction/Pulse Counter (Bi­direction)
4-channel A/B Phase (Quadrature Counting)
8-channel Up Counter
8-channel Frequency

Contact

Wet

Sink/Source (NPN/PNP)

Sink

Types

Counter, Frequency, Encoder

Counter/Encoder Bits

32-bit (4,294,967,295)

On Voltage Level

+3.5 VDC ~ +30 VDC

Off Voltage Level

+1 VDC Max.

Programmable Digital Filter

1 ~ 32767 μs

Individual Channel Configuration

Yes

Counter Mode

Up, Up/Down

Encoder Mode

CW/CCW, Direction/Pulse, AB Phase

Frequency Mode

Yes

Max. Speed

3.5 VDC ~ 10 VDC: 200 kHz
10 VDC ~ 30 VDC: 150 kHz

Frequency Accuracy

±0.4% of Input Frequency

Virtual Battery Backup to Preserve
Counter Values

Yes

1.3 Specifications

1.3.1 I/O Specifications

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Communication

Interface

RS-485

Format

N81, N82, E81, O81

Baud Rate

1200 ~ 115200 bps

Protocol

Modbus RTU, DCON

Dual Watchdog

Yes, Module (1.6 Seconds),
Communication (Programmable)

LED Indicator

Power

1 LED, Red

Isolation

Intra-module Isolation, Field-to-Logic

3000 VDC

EMS Protection

ESD (IEC 61000-4-2)

+/-4 kV Contact for Each Terminal

EFT (IEC 61000-4-4)

+/-4 kV for Power

Surge (IEC 61000-4-5)

+/-3 kV for Power Line

Power

Reverse Polarity Protection

Yes

Input Range

10 ~ 30 VDC

Consumption

1.32 W Max.

Mechanical

Dimensions (W x L x H)

72 mm x 123 mm x 35 mm

Installation

DIN-Rail, Wall Mounting

Environment

Operating Temperature

-25 ~ +75°C

Storage Temperature

-30 ~ +80°C

Humidity

10 ~ 90% RH, Non-condensing

1.3.2 System Specifications

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1.4 Block Diagram

1.4.1 Block Diagram for the M-7084

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Back View

Top View

Front View

Side View

Unit : mm

lnit

Normal

1.5 Dimensions

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1.6 Wiring

1.6.1 M-7084 Wiring

1.6.2 Wiring Recommendations

 Use 26-12 AWG wire for signal connections.
 Strip the wire to a length of 7±0.5mm.

 Use a crimp terminal for wiring.
 Avoid high-voltage cables and power equipment as

much as possible.

 For RS-485 communication, use insulated and twisted

pair 24 AWG wire, e.g. Belden 9841.

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1.7 Quick Start

To install the module, follow the steps below:

1. Refer to Section 1.2 for the terminal assignment and

Section 1.6 for the wiring diagram.

2. Connect the module to the RS-485 network using the

DATA+ and DATA- terminals. See Section 1.2 for the
terminal assignment. If the host is only equipped with an
RS-232 interface, then an RS-232 to RS-485 converter
will be required. Refer to the “I-7000 Bus Converter
User’s Manual” for more information.

3. Connect the module to the power supply using the +Vs

and GND terminals. See Section 1.2 for the terminal
assignment. Note that the voltage supplied to the module
should be in the range of +10 to +30 VDC.

4. Configure the module by sending the %AANNTTCCFF

command and the $AA7CNRVV command. See Section

2.1 and 2.17 for details. For M-7000 modules using the
Modbus RTU protocol, configure the module using the
following registers: 40257 ~ 40264, 40485, and 40486.

The default settings for the module can be found in
Section 1.8.

5. To read data from the input channels, send the #AAN

command to the module. See Sections 2.3 for details. For
M-7000 modules using the Modbus RTU protocol, use
Function 03h to read the data from the input channels.

6. If the host is a PC with a Windows operating system

installed, the DCON Utility can be used to allow easy
configuration and reading of data. The DCON Utility can
be downloaded from the ICP DAS website
(http://www.icpdas.com). The documentation for the
DCON Utility can be found in the ”Getting Started For
I-7000 Series Modules” manual.

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Please refer to the “I-7000 Bus Converter User’s Manual”
and ”Getting Started For I-7000 Series Modules” manuals
for more details. The “Getting Started For I-7000 Series
Modules” manual can be downloaded from the ICP DAS
website (http://www.icpdas.com).

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1.8 Default Settings

Default settings for the M-7084 modules are as follows:

。 Protocol: Modbus RTU
。 Module Address: 01
。 Type: Type 50, up counter
。 Baud Rate: 9600 bps

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7 6 5 4 3 2 1 0 Data

Baud

Key

Description

Baud

Baud Rate
03: 1200
04: 2400
05: 4800
06: 9600
07: 19200
08: 38400
09: 57600
0A: 115200

Data

Data Format
0: eight data bits, no parity, and one stop bit
1: eight data bits, no parity, and two stop bit
2: eight data bits, even parity, and one stop bit
3: eight data bits, odd parity, and one stop bit

Type Code

Input Type

50

Up counter

51

Frequency

54

Up/down counter

55

Pulse/direction counter

56

Quadrature counter

1.9 Configuration Tables

Baud Rate Setting (CC)

Type Setting (TT)

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7 6 5 4 3 2 1

0

RD

CS

RD

DF

Key

Description

DF

Data format
00: Engineering unit. The data consist of „+‟, 6

digits and one decimal point. This data format
is only for the frequency type.

10: Hexadecimal

CS

Checksum setting
0: Disabled
1: Enabled

RD

Reserved

Type Code

Counter type

Data
Format

Min

Max
50

Up

Hex

00000000

FFFFFFFF

54

Up/down

Hex

80000000

7FFFFFFF

55

Pulse/direction

Hex

80000000

7FFFFFFF

56

Quadrature

Hex

80000000

7FFFFFFF

Data Format Setting (FF)

Note: The reserved bits should be zero.

Counter Type and Data Format Table

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Up/down Counting

When InA0 is used as an up counting clock and InB0 is used
as a down counting clock, the counter will be increased by
one for every falling edge of InA0 and decreased by one for
every falling edge of InB0.

Pulse/direction Counting

The InB0 is used for direction counting. When InB0 is high,
the counter will be increased by one for every falling edge of
InA0. When InB0 is low, the counter will be decreased by
one for every falling edge of InA0.

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Quadrature Counting

When InA0 is used as the A signal and InB0 is used as the B
signal, the counter will be increased by one when the InA0
phase leads by 90 degrees to InB0 and the counter will be
decreased by one when the InA0 phase lags by 90 degrees to
InB0.

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1.10 M-7000 Notes

The main difference between the I-7000 and M-7000 series is
that the M-7000 series has additional support for the Modbus
RTU communication protocol, which is the default protocol
of the M-7000 series. The communication Baud Rates for the
Modbus RTU protocol can be in the range of 1200 bps to
115200 bps.

Modbus functions supported by the module are described in
Chapter 3.

1.10.1 Protocol Switching

To switch to the DCON protocol:

1. Set Modbus register 00257 to 0. See Section 3.1 for

details.

2. After a power-on reset, the communication protocol will

be changed to DCON.

To switch to the Modbus RTU protocol:

1. Sends the $AAPN command and set N to a value of 1.

Note that for the modules without frame ground, the
INIT* terminal should be connected to the GND terminal,
and for the modules with frame ground, the slide switch
on the rear side of the module should be set to the INIT
position, see the figure on the next page. See Section 2.23
for details.

2. After a power-on reset, the communication protocol will

be changed to the Modbus RTU protocol.

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1.10.2 INIT Mode

When the module is powered on, with the rear slide switch set
to the INIT position as shown in the figure below for modules
with frame ground, or with the INIT* pin connected to the
GND pin for modules without frame ground, the module is in
INIT mode, (see Section A.1 for details), and the
communication settings are as follows:

1. Address: 00

2. Baud Rate: 9600 bps

3. No checksum

4. Protocol: DCON

If communication with the module is not possible, set the
module to the INIT mode and use the above settings to
communicate with the module. To read the current settings,
send the commands $AA2, (see Section 2.6), and $AAP, (see
Section 2.22). To set new settings, send the commands
%AANNTTCCFF, (see Section 2.1) and $AAPN, (see
Section 2.23). The new communication settings will be
effective after the next power-on reset.

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Part number

Max. number of modules

Dimensions

DRS-360

5

360mm x 35mm

1.11 Mounting

1.11.1 Din-Rail Mounting

There are three new DIN rail models available. Each is made
of stainless steel, which is stronger than those made of
aluminum. There is a screw at one end and a ring terminal is
included so that it can be easily connected to the earth ground.
The three new DIN rail models are as follows.

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Part number

Max. number of modules

Dimensions

DRS-240

3

240mm x 35mm

Part number

Max. number of modules

Dimensions

DRS-125

2

125mm x 35mm

Note: It is recommended that a 16 – 14 AWG wire is used to

connect the DIN rail to the earth ground.

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1.11.2 Piggyback Mounting

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1.11.3 Wall Mounting

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1.12 Technical Support

Should you encounter any problems while using the
I-7000 and M-7000 module, and are unable to find the help
you need in this manual or on our website, please contact ICP
DAS Product Support.

Email: [e-mail]
Website:
http://www.icpdas.com.tw/contact_us/contact_us.html

When requesting technical support, be prepared to provide the
following information about your system:

1. Module name and serial number: The serial number can be

found printed on the barcode label attached to the cover of
the module.

2. Firmware version: See Sections 2.19 and 3.1 for

information regarding the command used to identify the
firmware version.

3. Host configuration (type and operating system)

4. If the problem is reproducible, please give full details

describing the procedure used to reproduce the problem.

5. Any specific error messages displayed. If a dialog box

with an error message is displayed, please include the full
text of the dialog box, including the text in the title bar.

6. If the problem involves other programs or hardware

devices, please describe the details of the problem in full.

7. Any comments and suggestions related to the problem are

welcome.

ICP DAS will reply to your request by email within three
business days.

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Leading

Character

Module

Address

Command

[CHKSUM]

CR

Leading

Character

Module

Address

Data

[CHKSUM]

CR

2. DCON Protocol

All communication with I-7000 modules consists of
commands generated by the host and responses transmitted by
the I-7000 modules. Each module has a unique ID number
that is used for addressing purposes and is stored in non­volatile memory. The ID is 01 by default and can be changed
using a user command. All commands to the modules contain
the ID address, meaning that only the addressed module will
respond. The only exception to this is command ~** (Section

2.36), which is sent to all modules, but the modules do not
reply to the command.

Command Format:

Response Format:

CHKSUM A 2-character checksum which is present when

the checksum setting is enabled. See Sections

1.9 (Data Format Setting) and 2.1 for details.

CR End of command character, carriage return

(0x0D)

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Checksum Calculation:

1. Calculate the ASCII code sum of all the characters in the

command/response string except for the carriage return
character (CR).

2. The checksum is equal to the sum masked by 0FFh.

Example:

Command string: $012(CR)

1. Sum of the string = “$”+”0”+”1”+”2” =

24h+30h+31h+32h = B7h

2. Therefore the checksum is B7h, and so

CHKSUM = “B7”

3. The command string with the checksum = $012B7(CR)

Response string: !01200600(CR)

1. Sum of the string =

“!”+”0”+”1”+”2”+”0”+”0”+”6”+”0”+”0” =
21h+30h+31h+32h+30h+30h+36h+30h+30h = 1AAh

2. Therefore the checksum is AAh, and so

CHKSUM = “AA”

3. The response string with the checksum

= !01200600AA(CR)

Note:

All characters should be in upper case.

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General Command Sets

Command

Response

Description

Section

%AANNTTCCFF

!AA

Sets the Module Configuration

2.1

$AA2

!AANNTTCCFF

Reads the Module Configuration

2.6

$AA5

!AAS

Reads the Reset Status

2.11

$AAF

!AA(Data)

Reads the firmware Version

2.19

$AAI

!AAS

Reads the INIT Status

2.20

$AAM

!AA(Data)

Reads the Module Name

2.21

$AAP

!AASC

Reads the communication protocol

2.22

$AAPN

!AA

Sets the communication protocol

2.23

~AAI

!AA

Software INIT

2.41

~AAO(Name)

!AA

Sets the Module Name

2.42

~AARD

!AAVV

Reads the Response Delay Time

2.43

~AARDVV

!AA

Sets the Response Delay Time

2.44

~AATnn

!AA

Sets the Software INIT Timeout

2.45

Counter/Frequency Command Sets

Command

Response

Description

Section

#AA

>(Data)

Reads the Input Data of All
Channels

2.2

#AAN

>(Data)

Reads the Input Data of the
Specified Channel

2.3

$AA0N

!AA(Data)

Reads the Low Pass Filter Time of
the Specified Channel

2.4

$AA0N(Data)

!AA

Sets the Low Pass Filter Time of the
Specified Channel

2.5

$AA3N

!AA(Data)

Reads the Maximum Counter Value
of the Specified Channel

2.7

$AA3N(Data)

!AA

Sets the Maximum Counter Value of
the Specified Channel

2.8

$AA4

!AAVV

Reads the Low Pass Filter Channel
Mask

2.9

$AA4VV

!AA

Sets the Low Pass Filter Channel
Mask

2.10

$AA5VV

!AA

Starts/Stop Counting

2.12

$AA6

!AAVV

Reads the Start/Stop Counting
Status

2.13

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Command

Response

Description

Section

$AA6N

!AA

Clears the Counter Value of the
Specified Channel

2.14

$AA7

!AAVV

Shows the Overflow Status of All
Channels

2.15

$AA7VV

!AA

Clears the Overflow Status

2.16

$AA7CNRVV

!AA

Sets the Single Channel Type

2.17

$AA8CN

!AACNRVV

Reads the Channel Type of the
Specified Channel

2.18

@AABB

!AAVV

Reads the Battery Backup Status

2.24

@AABBVV

!AA

Sets the Battery Backup Status

2.25

@AAFA

!AAVV

Reads the Auto Frequency Mode
Status

2.26

@AAFAVV

!AA

Sets the Auto Frequency Mode
Status

2.27

@AAFH

!AAVV

Reads the High Frequency Mode
Status

2.28

@AAFHVV

!AA

Sets the High Frequency Mode
Status

2.29

@AAFT

!AAVV

Reads the Frequency Measurement
Timeout

2.30

@AAFTVV

!AA

Sets the Frequency Measurement
Timeout

2.31

@AAGN

!AA(Data)

Reads the Preset Counter Value of
the Specified Channel

2.32

@AAPN(Data)

!AA

Sets the Preset Counter Value of the
Specified Channel e

2.33

@AASC

!AAVV

Reads the Stop Counting on
Overflow Status

2.34

@AASCVV

!AA

Sets the Stop Counting on Overflow
Status

2.35

Host Watchdog Command Sets

Command

Response

Description

Section

~**

No Response

Host OK

2.36

~AA0

!AASS

Reads the Status

2.37

~AA1

!AA

Resets the Status

2.38

~AA2

!AAVV

Reads the Timeout Settings

2.39

~AA3EVV

!AA

Sets the Timeout Settings

2.40

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