Maybe I'm getting confused because of all the topics on XIO/XIC or NO/NC instructions but I'm just looking at my PLC relay outputs on my micrologix 1200 and wondering if the relays them selves are normally open to current flow or normally closed (when power to the device is off)...
I'm assuming they are normally open, so that brings a question, is the only way to make them act like normally closed relays to install an intermediate relay?
I suppose the other option is to keep power on to the PLC at all times as normal and have the code initially set the relay to close.
I'm assuming they are normally open, so that brings a question, is the only way to make them act like normally closed relays to install an intermediate relay?
I suppose the other option is to keep power on to the PLC at all times as normal and have the code initially set the relay to close.