Hi all,
Happy belated turkey day!
I have an ET200SP PLC with serial unit. We read out date from two energy meters using modbus RTU. We run a cable from the RTU unit terminals, from there a cable goes to each of the meters. Technically, we have a star network. We use no resistors currently.
We are experiencing drops to one of the devices. And I think we may need termination resistors here.
My question, where to put these? At the two meters, AND the PLC end?
Thanks guys!
Happy belated turkey day!
I have an ET200SP PLC with serial unit. We read out date from two energy meters using modbus RTU. We run a cable from the RTU unit terminals, from there a cable goes to each of the meters. Technically, we have a star network. We use no resistors currently.
We are experiencing drops to one of the devices. And I think we may need termination resistors here.
My question, where to put these? At the two meters, AND the PLC end?
Thanks guys!