A
Hi,
I am doing masters in electrical engineering and writing a discovery tool to discover connected Modbus slave devices behind TCP/IP gateway. From what I read, for discovering a slave device behind TCP/IP gateway, I need to send a request to each slave ID and then listen for the response thereby concluding a device exists only if I get a response from any slave ID.
As for 1-byte slave addressing, the number of slave addresses to check is 247 and hence is taking too long time. Is there any way by which I can discover which slave IDs have a Modbus device apart from querying each address(since Modbus slave devices don't need to respond to broadcast message at slave ID 0)
Thanks,
Aditya
I am doing masters in electrical engineering and writing a discovery tool to discover connected Modbus slave devices behind TCP/IP gateway. From what I read, for discovering a slave device behind TCP/IP gateway, I need to send a request to each slave ID and then listen for the response thereby concluding a device exists only if I get a response from any slave ID.
As for 1-byte slave addressing, the number of slave addresses to check is 247 and hence is taking too long time. Is there any way by which I can discover which slave IDs have a Modbus device apart from querying each address(since Modbus slave devices don't need to respond to broadcast message at slave ID 0)
Thanks,
Aditya