CPM1A

Omron CPM1A CPU Units feature a one-piece construction including 10, 20, 30, or 40 built-in I/O terminals. The following three model groups are available: relay output models, sinking transistor output models, and sourcing transistor output models. Up to three Expansion I/O Units can be connected to a CPM1A CPU Unit to add an extra 8 or 20 I/O points for each, for a maximum of up to 100 I/O points. The CPM1A is equipped with a filter function to prevent incorrect operation caused by chatter or noise in the input signal. The user can select an input time constant of 1ms, 2ms, 4ms, 8ms, 16ms, 32ms, 64ms, or 128ms.