PLC Input Output Modules
Every programmable logic controller must have some means of receiving and interpreting signals from real-world sensors such as switches, and
Every programmable logic controller must have some means of receiving and interpreting signals from real-world sensors such as 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.