I need to know the PLC-to-PLC communication. I referred to your Telepace Studio training manual (MSTR block). We are using two Scadapack's for this demo operation in telepace studio software. One is scadapack357 - In this, we created the sample program by using one coil and one input register via serial communication. (When the input registers, gets energized the coil response). Finally, we want to get the data from Scadapack 357 to Scadapack 32. We need sample PLC programs of both the end and its configuration settings.
We checked the Communication protocol to be followed between PLCs (null cable)
What kind of cable I should use for communication between LAN port SP357 and SP32 (PLC to PLC)? (Cross or straight). Kindly guide me.
protocol - Modbus TCP/IP
In general, to connect two Ethernet LAN ports together, a CAT-5 (or similar) crossover Ethernet cable should be used.
If one of the Ethernet devices supports Auto MDI/MDI-X operation, then you can use either a straight-through or crossover Ethernet cable.
You will need to contact the vendor of your PLC's on whether or not they support Auto MDI/MDI-X if you intend to use a straight-though Ethernet cable. Otherwise, using a crossover Ethernet cable will work.