I have a Click PLC which has two RJ12 ports. I have successfully programmed it using C# and nModBus as a slave, but now I want to test the PLC as a master and the PC as a slave and noticed my laptop has a female RJ12 port, and was thinking is there a way I could transmit data across RJ12 to my PC from the PLC (e.g. PLC as master telling PC slave to read some data). Is this possible, and if so, where do I begin to communicate through RJ12?
If it's not possible, then here's this. If I use two adapters, one to convert RJ12 to Serial DB9 and another from DB9 to USB to connect to my computer, should I be able to communicate through the serial port on my laptop, or will two adapters cause some conflictions?
Thanks in advance stack!