Siemens 6ES7214-1AH50-0XB0 SIMATIC S7-1200 CPU 1214C DC/DC/DC 14DI/10DO Programmable Logic Controller

The Siemens 6ES7214-1AH50-0XB0 is a SIMATIC S7-1200 CPU 1214C DC/DC/DC compact controller with 14 integrated digital inputs and 10 digital outputs, running on 24 V DC (20.4-28.8 V). It carries 1 000 KB of work memory (250 KB program / 750 KB data) and 8 MB of integrated load memory, expandable via SIMATIC Memory Card up to 32 GB, with a PROFINET interface for IO controller and device operation.

Technical Specifications

Certifications & Standards

• CE
• UL
• cULus
• RCM
• KC
• Marine

Selection Notes

The 14 DI / 10 DO onboard I/O count and 1 000 KB combined work memory position the 1214C DC/DC/DC as the mid-tier S7-1200 CPU, with enough digital I/O and program space for a standalone machine controller without stepping up to a CPU with onboard analog I/O. The integrated 2-port PROFINET switch supports line-topology wiring to downstream ET 200 stations without an external switch. Choose the DC/DC/DC power variant (24 V DC supply, DC inputs, transistor DC outputs) over an AC/DC/relay sibling when the application needs the 100 kHz high-speed pulse outputs (Qa.0-Qa.3) for encoder feedback or stepper pulse trains, since relay-output CPUs switch far slower.

Applications

Used as the main controller in compact machine automation cells, packaging equipment, and small process skids where 14 digital inputs and 10 digital outputs cover the I/O count and PROFINET connects to an HMI panel or a distributed I/O station.