Kit contents and sourcing reality
The 6ES7212-1HF41-4YB0: This is the failsafe starter kit — everything in one Systainer to get a S7-1200 safety CPU up and running. Inside: the CPU 1212 FC DC/DC/relay, a 16-input safety DI module (SM 1226 F-DI), a 4-output safety DQ module (SM 1226 F-DQ), an input simulator, the STEP 7 Basic and STEP 7 Safety software on CD, plus printed manuals and info material. No chasing separate modules; it's all there from the start.