https://github.com/yaacov/modbus-repeater

Modbus TCP to Serial repeater
https://github.com/yaacov/modbus-repeater

Last synced: 7 months ago
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Modbus TCP to Serial repeater

• Host: GitHub
• URL: https://github.com/yaacov/modbus-repeater
• Owner: yaacov
• Created: 2013-08-28T13:36:20.000Z (about 12 years ago)
• Default Branch: master
• Last Pushed: 2013-08-28T14:04:23.000Z (about 12 years ago)
• Last Synced: 2025-01-23T09:43:22.319Z (9 months ago)
• Size: 137 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

          
modbus-repeater

===============

Modbus repeater is a python script that listen for modbus requests on a tcp connection

and repeat the request over a serial line. The script use simple python socket to listen

for incoming modbus requests, and pyserial to repeat the request over serial line.

mbs_client: Modbus TCP reader.

------------------------------

Modbus TCP reader.

    mbs_client.py -h

    usage:   

    mbs_client.py [-h] [-l TCP_PORT] [-i TCP_IP] [-n UNIT_NUMBER]

                     [-a ADRESS] [-c COUNT] [-t TIMEOUT] [-f] [-v VALUE]                     

                     [-r {3,4,16}]

optional arguments:

      -h, --help show this help message and exit      

      -l TCP_PORT ip port to use (default: 502)      

      -i TCP_IP ip of server unit      

      -n UNIT_NUMBER unit number      

      -a ADRESS register start adress (first adress is 1)      

      -c COUNT number of registers to read      

      -t TIMEOUT repeat readings evry N sec (modbus commands 3 and 4)      

      -f parse values as int (default is float)      

      -v VALUE value to write to register (modbus command 16)      

      -r {3,4,16} modbus command, 3: read holding registers, 4: read input  

                  registers, 16: write input registers

mbs_server: Modbus TCP to Serial repeater.

------------------------------------------

Modbus TCP to Serial repeater.

    mbs_server.py -h

    usage: 

    mbs_server.py [-h] [-l TCP_PORT] [-b BAUDRATE] [-p PARITY] [-c PORT]

                     [-t TAL] [-d]

optional arguments:

      -h, --help show this help message and exit      

      -l TCP_PORT ip port to listen (default: 502)      

      -b BAUDRATE serial port baudrate (default: 38400)      

      -p PARITY serial port parity (default: E)      

      -c PORT serial port com-port      

      -t TAL serial port tal addr      

      -d print debug information