connection between AC500-eco PLC and multiple Drive
I'm using PM554-tp-eth! I've connected my PLC to ACS880 on modbus_RTU via COM1!
Now I wanna to connect it to 3 ACS880s! As I found in PLC document it could happen on CS31 BUS via COM1! but in automation builder help this connection needs one additional module, for example 07AI91!
I'm actually wondering if it's possible to make this connection without using additional module!?
I guess it could happen without using any additional module and it is required to make a switching state between the drives in my code!
thank in advance
simply, if you add 2 more drives in the ModBus, you can continue to use the communication port of the CPU using it as a ModBus master, however you must take into account that the slaves will have addresses other than the first drive and consequently you will have to take into account in your program to modify the target words of the commands to the drives or addresses if you are using standard communication blocks.