Network and program identity
The Siemens 6ES7214-1BE30-0XB0 is a SIMATIC S7-1200 CPU 1214C in the DC/DC/DC variant, and the headline field for an integrator is the interface: PROFINET with TCP/IP, operating as a PROFINET server on the network — so the CPU is a slave-end node that a higher-level controller or HMI polls, not a PROFINET master driving remote I/O. It supports all three standard S7-1200 programming languages: FBD, LAD, and SCL, which means existing code blocks from an established project drop straight in without translation. There is no MODBUS, no PROFIBUS, no AS-Interface, and no PROFIsafe on this variant — pick a different CPU letter suffix if the BOM calls for any of those.
Power and environmental envelope
Operating temperature spans -40 °C minimum to 70 °C maximum, so the part is rated for unheated cabinets and warmer cabinet interiors without derating beyond the standard install guidance.
Memory, retention, and project scale
The 6ES7214-1BE30-0XB0 ships with 2 Mbyte of integrated work memory for the project, with a typical backup time of 240 h and project maintenance stored free of battery in the integral EEPROM — the spare-part shelf life is not a battery-replacement clock. Bit memory address area tops out at 8 kbyte, and the variable set covers inputs/outputs, memory bits, DBs, distributed I/Os, timers, and counters; code count is limited only by RAM. Process image is 1 024 byte in each direction, and the station can host up to 15 expansion modules dynamically — enough headroom for a small-to-mid machine cell before the next CPU class is the right move.
Field-side wiring and I/O behavior
On the digital inputs, signal "0" is at 5 V DC at 1 mA and signal "1" is at 15 V DC at 2.5 mA, with 2-wire sensor support and forcing enabled. Analog channels accept 0 to +10 V, isolated, with adjustable scaling — useful when a panel mixes 24 V sensors with a legacy ±10 V transducer or a panel-meter tap.
Footprint and cabinet layout
Footprint is 110 mm wide by 100 mm high by 75 mm deep — standard S7-1200 CPU 1214C envelope, so the DIN-rail cutout and the I/O footprint to the right of the CPU match the standard family layout.
Approvals on file
The variant carries cULus, CE mark, and FM approval, which is the standard set for S7-1200 acceptance on North American and EU plant sites.