Serial Device Server

[MEWART]

We have a four port RS232/422/485 to Ethernet serial device server with a static IP assigned. How do I read / write to (using MODBUS IP) the individual ports? Building 4 seperate MODBUS objects using the same IP address, but differant identifiyers (1-4) be the answer? The other answer is to use virtual comm ports, but would rather do this without that if possable.

Thanks all

[Mike@Forshock]

You can use TCP only if the device supports RTU to TCP conversion, such as many IAP gateways.

Otherwise, its Virtual COM ports.  Lookout hates them, especially if the link is high latency.