Author Topic: Using NANO-10 PLC as modbus gateway  (Read 12337 times)

Aparras

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Using NANO-10 PLC as modbus gateway
« on: July 11, 2016, 07:17:53 AM »
Hello,
I'm working with a Nano-10 PLC on a project, where I must to access a third party device by remote TCP/IP connection. Nano is connected to this device through RS-485 port. Remote connection has to be done through modbus ASCII protocol, and I was reading chapter 19 of Nano's manual, and says PLC works as Modbus gateway, but repeating only RTU commands. I was trying to do this using 502 port and PLCs IP. Connection seems to work but communication fails because of the RTU-ASCII differences.

Is there some way to use PLC as gateway but through ASCII mode?

Best Regards,

Alberto

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Re:Using NANO-10 PLC as modbus gateway
« Reply #1 on: July 11, 2016, 08:20:13 AM »
The gateway function of the Nano-10 supports only the Modbus RTU mode as well as the Hostlink command mode but not the Modbus ASCII mode. Modbus ASCII is much less often used than Modbus RTU mode and therefore there has been no plan to add this mode to the gateway function.

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