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8DI 8DO Isolated Digital Output DAQ Module, RS485 Modbus

Rs25,000.00
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8DI 8DO Isolated Digital Output DAQ Module, RS485 Modbus RTU Remote Data Acquisition, ADAM Din Rail, Free software

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1.Product description

  •   8ch optoelectronic isolation digital input and output(NPN)
  •   Using RS485 MODBUS RTU communication standard. It can be netted with   configuration software, PLC and industry touch pad
  •   Communication, input and output status LED
  •   Communication circuit designed for lightening protection and interference   immunity
  •   Could be used for signal collection and control of Industrial field apparatus
  •   3 Year’s quality assurance for normal use

 

2.Specification

  •   Digital input                  8ch
  •   Digital output                8ch(NPN,500mA)
  •   Working Temperature    -20-70 °C
  •   External power supply    DC 9V-30V/2W
  •   Isolation protect            1500VDC
  •   Installation method        Standard DIN slide rail or screw
  •   Dimension                    125×73×35mm

 

3.Interface definition

 

AVcc

 External PSU positive terminal input

AGnd

 External PSU negative terminal input

DO_01

 Digital output in 1st ch

DO_02

 Digital output in 2ndch

DO_03

 Digital output in 3rd ch

DO_04

 Digital output in 4th ch

DO_05

 Digital output in 5th ch

DO_06

 Digital output in 6th ch

DO_07

 Digital output in 7th ch

DO_08

 Digital output in 8th ch

DI_01

 Digital input in 1st ch

DI_02

 Digital input in 2ndch

DI_03

 Digital input in 3rd ch

DI_04

 Digital input in 4th ch

DI_05

 Digital input in 5th ch

DI_06

 Digital input in 6th ch

DI_07

 Digital input in 7th ch

DI_08

 Digital input in 8th ch

485A

 RS485 signal A+

485B

 RS485 signal B-

 

4 Digital application diagram

4.1 Digital input

8028-1

4.2 Digital output

8028-2

5 Communication Instruction

    5.1 Communication parameter (default setting): 9600,N,8,1

   

Parameter

Description

9600

baud rate

N(no check)

check bit

8

data bit

1

stop bit

 

  5.2 Command for digital input collection:

  Send: 01 02 00 00 00 08 79 CC (example/hexadecimal)

data

byte

data description

remark

01

1

 module address

 Address range 01-FE

02

1

 function code

 02-read input bit

0000

2

 input address

 (1x mode)

 0000-initial address of input bit

0008

2

 read length of input bit

 0008-read 8 input bits

79CC

2

 CRC check code

 CRC check code for all data

 

 Receive: 01 02 01 C2 20 19 (example/hexadecimal)

data

byte

data description

remark

01

1

 module address

 Address range 01-FE

02

1

 function code

 02-read input bit

01

1

 byte numbers

 01-read one byte length

C2 

1

 read data

 C2-read input bit status

2019

2

 CRC check code

 CRC check code for all data

 

Converting reading data “C2” to 2 hexadecimal results “11000010”. From left to right, it represents the 8 digital input channel status DI_08 ~ DI_01. Here it means DI_08,DI_07,DI_02 have input but others no. 

 

   5.3 Command for digital output (several controls):        

 Send: 01 0F 00 00 00 08 01 A4 FF 2E (example/hexadecimal)

data

byte

data description

remark

01

1

 module address

 Address range 01-FE

0F

1

 function code

 0F-write multiple coil

0000

2

 coil address

 (0x mode)

 0000-initial address of coil

0008

2

 write coil length

 0008-write 8 coils

01

1

 write data byte

 01-write one byte data

A4

2

 data writing

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8DI 8DO Isolated Digital Output DAQ Module, RS485 Modbus

8DI 8DO Isolated Digital Output DAQ Module, RS485 Modbus RTU Remote Data Acquisition, ADAM Din Rail, Free software

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