Siemens 6ES7212-1BG50-0XB0 SIMATIC S7-1200 CPU 1212C AC/DC/RLY 8DI/6DO Programmable Logic Controller

The Siemens SIMATIC S7-1200 CPU 1212C AC/DC/RLY 6ES7212-1BG50-0XB0 is a compact PLC with an 85-264 V AC power supply, 8 integrated 24 V DC digital inputs, and 6 relay outputs rated 2 A resistive. It holds 150 KB of program memory and 500 KB of data memory, offers 20 KB of retentive storage, and connects over an integrated 2-port PROFINET interface.

Technical Specifications

Certifications & Standards

• CE
• UL
• cULus
• RCM
• KC
• Marine

Selection Notes

The AC/DC/RLY power stage means this CPU runs directly from 120/230 V AC and switches its 6 outputs through relays rated 2 A resistive or 200 W on an AC lamp load, which suits mixed AC/DC field wiring without an external interposing relay bank. Pick this 8 DI / 6 DO 1212C over the 1211C when the application needs the extra 2 relay outputs and the 6-HSC-at-100 kHz counting capability for local encoder or flow-meter inputs; move up to the 1214C if the I/O count or 4 MB work memory of this CPU becomes the constraint. A SIMATIC Memory Card is required for firmware updates and recommended for retentive-data backup.

Applications

Fits standalone machine control and small process skids that mix AC-driven field devices with 24 V DC sensors: packaging cells, material-handling stations, and utility skids where relay outputs directly switch contactors or solenoid valves.