Wiring of the Siemens S7-1200 PLC (CPU 1211C AC/DC/Relay)
The PLC wiring explained in this chapter provides the basic skill needed to get PLCs wired to sensors, lights, and actuators. It is advisable to consult the manual of any PLC you want to wire and follow the wiring/guides provided in the manual. The following diagram shows the wiring of the Siemens S7-1200 PLC (CPU 1211C AC/DC/Relay) in the manual:
Figure 7.25 – Siemens S7 1200 PLC wiring (CPU 1211C AC/DC/Relay)
The pictorial diagram shown as follows will give a better understanding of the wiring of the Siemens S7-1200 PLC (CPU 1211C AC/DC/Relay):
Figure 7.26 – Pictorial diagram of the Siemens S7-1200 PLC wiring (CPU 1211C AC/DC/Relay)
The credit for this figure goes to Showlight Technologies Ltd. (www.showlight.com.ng).
Explanation of the wiring
In Figure 7.26, a circuit breaker connects to the AC supply (220V AC) and is used to supply AC power to...