The Siemens 6ES7212-1HE40-0XB0 is a SIMATIC S7-1200 CPU 1212C DC/DC/Relay Compact CPU that combines a 24 V DC CPU supply with relay outputs, integrated analog inputs, and compact S7-1200 expansion.
- CPU 1212C DC/DC/Relay
- 8 DI 24 V DC; 6 relay DO, 2 A; 2 AI 0 to 10 V DC
- 24 V DC; 20.4 to 28.8 V DC
- 90 x 100 x 75 mm
In a correctly engineered SIMATIC S7-1200 installation, it acquires eight 24 V DC inputs and two analog signals, runs the control program, and switches six relay-output circuits. It works with the exact host hardware, power, wiring, field devices, firmware, and project configuration published for this complete article number. It is applied in 24 V DC control panels that must operate mixed AC or DC loads through onboard relays.
Important Notice: Use the complete 6ES7212-1HE40-0XB0 code and verify the physical nameplate, current Siemens documentation, supply, wiring, project, firmware, and accessories before installation or replacement.
Apter Power 6ES7212-1HE40-0XB0 Manuals and Guides
Important Notice: These are two separate Apter Power documents prepared from the manufacturer-published Siemens information named in each document. Confirm the physical nameplate, current Siemens documents, and host-system requirements before installation or replacement.
Machine sequence control
Executes PLC logic while processing 8 di 24 v dc; 6 relay do, 2 a; 2 ai 0 to 10 v dc
Mixed-voltage load switching
Switches compatible AC or DC loads within the published relay limits
Analog process acquisition
Converts the integrated 0 to 10 V inputs for limits, scaling, trends, and closed-loop logic
PROFINET automation
Coordinates HMI, distributed I/O, drives, and controllers for 24 V DC control panels that must operate mixed AC or DC loads through onboard relays
Read and follow the current Siemens source and applicable installation instructions before use. Verify 6ES7212-1HE40-0XB0, CPU 1212C DC/DC/Relay, host system, supply, wiring, firmware, and project from the physical installation.
1
Confirm every character of 6ES7212-1HE40-0XB0, the CPU 1212C DC/DC/Relay marking, hardware revision, and firmware against the TIA Portal project.
2
Isolate power and verify 24 V DC; 20.4 to 28.8 V DC; follow Siemens conductor, terminal, grounding, and circuit-protection requirements.
3
Check relay contact voltage, 2 A resistive-load limit, output-group commons, fusing, and load suppression before connecting field loads.
4
Separate analog and communication wiring from power conductors; terminate shields and references according to the S7-1200 system manual.
5
Restore the verified project, commission inputs and outputs by circuit group, test network and fault behavior, and record the results.
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