About the 61C500
The 61C500 module was designed and manufactured by Reliance Electric as part of the AutoMax PLC. The 61C500 module is described as a 16 Channel Input Module 115VAC Automate DCS 5000.
The 61C500 module is a thin, black rectangular module with one side slightly longer than the other three. The 61C500 module has sixteen ports along this longer side which are meant for connection. Above these sixteen connection ports, there is once longer, thinner port. At the very top of this side, there is a small white label which has information about the 61C500 module, including the fact that it is a 115 VAC input.
There are four revisions available for the 61C500: the 61C500A, the 61C500B, the 61C500C, and the 61C500D.