PLC I/O Modules: Sinking, Sourcing, Keying, Scaling
How to pick discrete and analog I/O, get sinking and sourcing right, set RPI and electronic keying, wire a 4-20 mA loop and scale the raw counts.
i/o modules
PLC Hardware Components and the Software That Uses Them
What is in a PLC rack and how the software sees it: power supply budget, CPU memory, I/O cards, tasks and routines, and tags against S7 addresses.
Advertisement