PLC
Every machine has logic of its own. The tool changer, the coolant, the door, the E-stop chain and the interlocks that decide whether motion is allowed are the machine builder’s, not the control’s. These pages cover that logic on this machine, and the two places an operator or a part programmer meets it.
- Writing the PLC: building the interlock logic in Structured Text and wiring it to motion.
- PLC Signals in Macros: reading live machine state from a running part program, so a program can branch on what the machine is doing.
- Machine I/O: every physical input and output, beside the state the machine logic gives it.
Where to go next
Section titled “Where to go next”- Machine Setup: what is configured once, at commissioning.
- Custom Macros: the variables a program uses to read those signals.