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MODBUS RTU 8 Input / output RS485 TTL Input

Product Code: RTU-8I8O
Availability: In Stock
Price:
INR3,000.00


Introduction :

 

MODBUS RELAY MPDULE  12 V 8 Channels Network Expansion Board Relay Module 8-CH RS485 MODBUS RTU 8-CH RS485 TTL Input (Modbus RTU Mode)    is a Expansion Board  with 8 opto-inputs and 8 relays (for currents up to 7A). 

Features :

8 OPTO INPUT  -  8  RELAY OUTPUT  - RS485 COMMUNICATION

 

Modbus RTU Command
 
Baud rate : 9600  8 NONE 1
 
HEX send
HEX receive
 
/*******************************************************************/
Set address: 01
00 06 40 00 00 01 5c 1b
Set address: 02
00 06 40 00 00 02 1c 1a 
read addrss
00 03 40 00 00 01 90 1b
/*******************************************************************/
read bios version:
00 03 00 04 00 01 c4 1a
00 03 00 08 00 01 04 19  
00 03 00 10 00 01 84 1e   
 
read PCB version
00 03 00 20 00 01 84 11  
/*******************************************************************/
 
//--------------------------------------------
open  the realy 1 Command : 01 05 00 01 01 00 9d 9a
 
byte 1: address
byte 2: function code
byte 3 4: Register address
byte 5 6: Register data
byte 7 8: CRC check
 
//==============================================================
[address 1]
//--------------------------------------------
open  the realy 1 : 01 05 00 01 01 00 9d 9a
close the realy 1 : 01 05 00 01 00 00 9c 0a
//--------------------------------------------
open  the realy 2 : 01 05 00 02 01 00 6d 9a
close the realy 2 : 01 05 00 02 00 00 6c 0a
//-------------------------------------------
open  the realy 3 : 01 05 00 03 01 00 3c 5a
close the realy 3 : 01 05 00 03 00 00 3d ca
//-------------------------------------------
open  the realy 4 : 01 05 00 04 01 00 8d 9b
close the realy 4 : 01 05 00 04 00 00 8c 0b
//-------------------------------------------
open  the realy 5 : 01 05 00 05 01 00 dc 5b
close the realy 5 : 01 05 00 05 00 00 dd cb
//--------------------------------------------
open  the realy 6 : 01 05 00 06 01 00 2c 5b
close the realy 6 : 01 05 00 06 00 00 2d cb
//-------------------------------------------
open  the realy 7 : 01 05 00 07 01 00 7d 9b
close the realy 7 : 01 05 00 07 00 00 7c 0b
//-------------------------------------------
open  the realy 8 : 01 05 00 08 01 00 4d 98
close the realy 8 : 01 05 00 08 00 00 4c 08
//-------------------------------------------
 
//======================================================================
ALL off: 01 05 00 ff 00 00 fd fa
All open: 01 05 00 ff ff ff fc 4a
 
[address 2]
open  the realy 1: 02 05 00 01 01 00 9d a9
close the realy 1: 02 05 00 01 00 00 9c 39
 
open  the realy 2: 02 05 00 02 01 00 6d a9
close the realy 2: 02 05 00 02 00 00 6c 39
 
open  the realy 3: 02 05 00 03 01 00 3c 69
close the realy 3: 02 05 00 03 00 00 3d f9
 
open  the realy 4: 02 05 00 04 01 00 8d a8
close the realy 4: 02 05 00 04 00 00 8c 38
 
all off: 02 05 00 ff 00 00 fd c9
all open: 02 05 00 ff ff ff fc 79
/**********************************************************************/
Read relay output 1 status 
01 01 00 01 00 04 6c 09
 
Read relay output 2 status
01 01 00 02 00 04 9c 09
 
Read relay output 3 status
01 01 00 03 00 04 CD C9
 
Read relay output 4 status
01 01 00 04 00 04 7C 08
/*********************************************************************/
read input status
01 02 00 00 00 00 78 0a
 

 

 

 

 

 

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