Free Shipping! Digital input and output module 8 channel relay output Isolated 8RO RS485 MODBUS communication module sensor

Free Shipping! Digital input and output module 8 channel relay output Isolated 8RO RS485 MODBUS communication module sensor
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Chapter 1 product introduction

1.Summary

MB8AO 8Road analog output module, 8 0-20mA, 4-20mA, 0-5V, 0-10V analog output signal output; through the isolation of RS485 interface can control the data output of 8AO; module using Modbus-RTU communication, can directly adapt to PLC, DCS and domestic configuration software.

The signal output, power supply and RS485 communication electrical signals are isolated from each other, effectively restraining all kinds of mode and common mode interference, ensuring the accuracy of the data, and ensuring the reliable work of the module.

Two.Characteristic

1.The standard Modbus-RTU protocol is used.

2.The input signal types of each channel can be set according to their own needs..

3.The signal output type is designed with no jumper, and can be set up by testing software. No need to open the shell to set up jumpers, so it is very convenient for users to use..

4.The module analog output power is built in isolation DCDC module without additional analog output power.

5.AOAnalog output mode

Module function mode

Functional characteristics

Load preloaded mode

1.Analog output [1]AOThe initial value can be set to load a value, which is loaded by default.0Value.

2.When the module is on electricity, the analog outputAOLoading [AOThe initial value of electricity.

Load off value mode

1.The power supply of the module is continuously monitored. When the module is powered down, the current storage is recorded.AOThe output value of the channel.

2.When the module is on power again, the analog outputAOLoad the last value before power off.

6.Safety: signal collection, signal output, power supply, RS485 communication and electrical signals are isolated from each other.

7.Communication protection: RS485 communication signal output interface adopts over voltage and over current double protection.

8.The output signal type and communication format can be set by software.

9.Power polarity protection and overcurrent protection.

Three.Technical indicators

project

parameter

AO

signal output

1Output channel: 8 channel isolation analog output

2Output signal type: 0-20mA, 4-20mA, 0-5V, 0-10V 4 analog signals.

3Sampling rate: 8 channel 5mS can be updated once

4Resolution: 12 bit

5.Precision: voltage 0.2% Electric current 0.3%

6. Isolation voltage protection: 1500V

RS485

Communication output

1Communication protocol: MODBUS-RTU

2Interface type: isolated RS485 communication, output interface adopts over voltage and over current double protection.

3Baud rate: 1200BPS, 2400bps, 4800bps, 9600bps, 19200bps

4Check bit: no check, parity check, odd check

5Setting mode: module address, baud rate, parity bit can be set by software.

6. Isolation voltage protection: 1500V

Module size

A. Individual module size: 104mm*72mm*26mm

B. With terminal and guide box size: 124mm*72mm*45mm

Installation method

Standard DIN guide rail installation (35mm guideway or high and low guide rail)

work environment

Temperature: -10 ~ +55 C humidity: 35~85% (no condensation).

Working power supply

1Power supply voltage: 10V~30V wide range power supply.

2. With power polarity protection and overcurrent protection.

3Power consumption: less than 3W

Four.Product appearance and peripheral wiring diagram

Five.Module indicator light and switch function description

1.POW/SET; Module working status indication

A.Green light: module work in running state. B. red light: module has configuration parameters written, need to power up again.

2.TXD/RXD: Communication status indication

A.Green light: communication receives data B. red light flashes: module is sending data.

C.The green light is always bright: the communication RS485 line on DATA+ and DATA- is reversed or the connection is broken.

3.Right reset switch of module

A.When the communication parameters (module address, baud rate, check bit) are not known or misset by communication parameters, we can not establish contact with module communication. The solution is to reset the communication parameters. We hold the reset switch with a curved pin and do not let it open. After 5 seconds, the module [POW/SET] red refers to the light, the reset switch is released, and the communication is at this time. The parameters have been reset. Once the power supply of the module is turned off, the communication parameters of the module have been reset.

B.After the reset, the communication parameters are: 1, baud rate: 9600bps, check bit: none.

Six.Typical application wiring diagram

Seven.Terminal definition

 

terminal

Name

Explain

 

terminal

Name

Explain

1

+Vs

Power input +

19

A04I

Analog channel 4 current output

2

GND

Power input

20

AGND

Analog output

3

A00I

Analog channel 0 current output

21

A04V

Analog channel 4 voltage output

4

AGND

Analog output

22

AGND

Analog output

5

A00V

Analog channel 0 voltage output

23

A05I

Analog channel 5 current output

6

AGND

Analog output

24

AGND

Analog output

7

A01I

Analog channel 1 current output

25

A05V

Analog channel 5 voltage output

8

AGND

Analog output

26

AGND

Analog output

9

A01V

Analog channel 1 voltage output

27

A06I

Analog channel 6 current output

10

AGND

Analog output

28

AGND

Analog output

11

A02I

Analog channel 2 current output

 

29

A06V

Analog channel 6 voltage output

12

AGND

Analog output

 

30

AGND

Analog output

13

A02V

Analog channel 2 voltage output

 

31

A07I

Analog channel 7 current output

14

AGND

Analog output

 

32

AGND

Analog output

15

A03I

Analog channel 3 current output

 

33

A07V

Analog channel 7 voltage output

16

AGND

Analog output

 

34

AGND

Analog output

17

A03V

Analog channel 3 voltage output