Siemens 6ES7211-1BE40-0XB0 SIMATIC S7-1200 CPU 1211C AC/DC/Relay 6DI/4DO/2AI Programmable Logic Controller

The Siemens 6ES7211-1BE40-0XB0 SIMATIC S7-1200 CPU 1211C AC/DC/Relay is a compact PLC with 75 kbyte of integrated work memory, 6 onboard digital inputs, 4 relay outputs rated 2 A, and 2 analog inputs. It runs from an 85-264 V AC supply and communicates over a single PROFINET port supporting up to 16 connected IO devices.

Technical Specifications

Certifications & Standards

• CE
• UL
• cULus
• FM
• RCM
• KC
• Marine

Selection Notes

The AC/DC/relay power supply variant (85-264 V AC) suits installations already wired for line voltage without a separate 24 V DC power supply, unlike the DC/DC/DC CPU 1211C that needs a 24 V DC source. Relay outputs switch both AC and DC loads up to 2 A directly, so it drives small contactors or indicator lamps without an added output module, at the cost of a slower 10 ms max output delay compared to a DC/DC/DC CPU's transistor outputs. With 75 kbyte of work memory and room for 3 communication modules plus 1 signal board, it fits small standalone machines rather than applications needing distributed I/O racks; for those, a CPU 1214C or 1215C with more memory is the better starting point.

Applications

Standalone machine control on line-voltage-only installations, such as small conveyors, packaging stations, or utility panels needing 6 DI / 4 relay DO / 2 AI without a distributed I/O rack.