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Modbus RTU 4CH 12V RS485 module

Modbus RTU 4CH 12V RS485 module
Modbus RTU 4CH 12V RS485 module
Modbus RTU 4CH 12V RS485 module
Modbus RTU 4CH 12V RS485 module
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Modbus RTU 4CH 12V RS485 module
Modbus RTU 4CH 12V RS485 module
Modbus RTU 4CH 12V RS485 module
Modbus RTU 4CH 12V RS485 module
Modbus RTU 4CH 12V RS485 module
High Quality Product
Proved by satisfied customers
  • Stock: In Stock
  • Model: RTU 4CH
  • Weight: 250.00g
  • Dimensions: 8.50cm x 8.50cm x 2.00cm
190 samples sold
$ 70.50
Ex Tax: $ 70.50

 

 

 

 

Modbus RTU 4CH 12v RS485 module

Description:

4 channel relay output (one normally open and one normally closed)
STM8S103F3 MCU
4 channel optocoupler isolation
4 Relays Close LED Indicators
Round DC interface and terminal DC interface. Convenient power wiring (supply voltage 12V)
4 channel input interface
RS485 communication interface.
A power indicator
A User LED Lamp
Reset button

Package Included:
1 x Modbus RTU 4 channel Relay Module

Modbus RTU order:
 
Function code: 05 relay output[control relay ON/Off] 
Function code: 06 data storage[Customize data storage]
Baud rate: 9600 8 none1
 
16 system send
16 system receive
 
Operation steps: 
1.Software Setting Communication BPS
2.Set the address(Communications equipment used address,default is 01)
                                                          
/*******************************************************************/
Set the address:09
01 10 00 00 00 01 02 00 09 66 56//address 01 modified 09
Set the address:01
01 10 00 00 00 01 02 00 01 66 56// modified 01
 
 
read of address
00 03 00 00 00 01 85 db
return:
00 03 02 00 01 44 44 //01 is address
 
/*******************************************************************/
/*******************************************************************/
Each byte meaning:
[No.1 adress]
//--------------------------------------------
No.1 relay ON : 01 05 00 01 01 00 9d 9a
 
Byte 1:  Address
Byte 2:  Funtion code
Byte 3 4:Register address
Byte 5 6:Register data
Byte 7 8:CRC verify
 
//==============================================================
[No.1 adress]
//--------------------------------------------
No.0 relay ON : 01 05 00 00 FF 00 8C 3A
No.0 relay Off : 01 05 00 00 00 00 CD CA
//--------------------------------------------
No.0 relay ON : 01 05 00 01 FF 00 DD FA 
No.0 relay Off : 01 05 00 01 00 00 9C 0A 
//-------------------------------------------
No.2 relay ON : 01 05 00 02 FF 00 2D FA
No.2 relay Off : 01 05 00 02 00 00 6C 0A 
//-------------------------------------------
No.3 relay ON : 01 05 00 03 FF 00 7C 3A
No.3 relay Off : 01 05 00 03 00 00 3D CA
//-------------------------------------------
No.4 relay ON : 01 05 00 04 FF 00 CD FB
No.4 relay Off : 01 05 00 04 00 00 8C 0B
//--------------------------------------------
No.5 relay ON : 01 05 00 05 FF 00 9C 3B
No.0 relay Off : 01 05 00 05 00 00 DD CB 
//-------------------------------------------
No.6 relay ON : 01 05 00 06 FF 00 6C 3B
No.6 relay Off : 01 05 00 06 00 00 2D CB 
//-------------------------------------------
No.7 relay ON : 01 05 00 07 FF 00 3D FB
No.6 relay Off : 01 05 00 07 00 00 7C 0B
//-------------------------------------------
 
//=============================================================
All dark: 01 0F 00 00 00 08 01 00 FE 95
All bright: 01 0F 00 00 00 08 01 FF BE D5
 
/**********************************************************************/
 
/*********************************************************************/
read all ports input state
Send:01 02 00 00 00 08 79 CC   //read 8 input state
Return:01 02 01 00 A1 88

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