PLC Digital Input and Digital Output Modules
A “discrete” data point is one with only two states on and off. Process switches, push-button switches, limit switches, and
A “discrete” data point is one with only two states on and off. Process switches, push-button switches, limit switches, and
PLC outputs are of two types: 1. Relay. 2. Solid state. Relay outputs are mechanical contacts and Solid State outputs are like transistor, TRIAC.