Pixsys Forum

Hi All,

I have a situation where I cannot be physically connected to a machine under control.
I cannot use a serial cable (the machine is mobile and I am not allowed to be tethered to it). For SCADA I am using Mobus/TCP via a modbus gateway local to the PLC.
I wanted to do something similar with the PLProg connection, however PLProg only appears to work using a Serial comms port and not Ethernet. Is there a way to get around this? Is there a software comms port available that redirects over to Ethernet?

Thanks in advance.

Kevin

HI,
PlProg only works using RS232 serial connection (or with USB-to RS232 adapter) or RS485.

I managed to find a virtual serial port software called 'HW Virtual Serial Port'. It maps a comms port direct to an Ethernet address.

This way you configure the virtual comms port to be 'COM3', then in the software you also select an IP address that will receive the serial data. You now go wireless Ethernet and transmit your data. At the other end (the IP address previously mentioned) use an Ethernet to serial device driver connected to your PLC.

I'm hoping this will give me the connection I need. I will confirm if it works after testing.