Hi guys!
Anyone here who has done modbus TCP communication straight up with AG_SEND and AG_RCV?
Any snags one should know about?
I've done some testing and after setting up a connection I tried sending a modbus request and it worked as expected.
Thanks,
Pete
BTW, I have the "open modbus tcp"-package from Siemens but it seems inflexible and unrefined to me. It also forces me to restart the cpu to set the initialization call in OB100 as well as doing it again for licensing and every time in the future I need to change what areas I need to read or any other configuration of the software. The PLC is running some plant critical stuff so every restart must planned and synchronized and it takes hours.
Anyone here who has done modbus TCP communication straight up with AG_SEND and AG_RCV?
Any snags one should know about?
I've done some testing and after setting up a connection I tried sending a modbus request and it worked as expected.
Thanks,
Pete
BTW, I have the "open modbus tcp"-package from Siemens but it seems inflexible and unrefined to me. It also forces me to restart the cpu to set the initialization call in OB100 as well as doing it again for licensing and every time in the future I need to change what areas I need to read or any other configuration of the software. The PLC is running some plant critical stuff so every restart must planned and synchronized and it takes hours.