When a PLC fails on a production line, finding the correct replacement quickly matters more than simply finding a similar model. The SIMATIC S7-1200 CPU 1214C is widely used for compact industrial automation systems, but the exact MLFB number must match the required power configuration. For 6ES7214-1BG40-0XB0, Siemens specifies a CPU 1214C with AC/DC/relay configuration, 14 digital inputs, 10 relay outputs, 2 analog inputs and 150 KB program/data memory.
For maintenance engineers and procurement teams, the challenge is often sourcing a genuine part with the right specification, condition, warranty and delivery time. DUOMI CNC supplies new and discontinued automation spare parts worldwide, helping you source Siemens PLC components when standard procurement channels cannot meet an urgent requirement.
The 6ES7214-1BG40-0XB0 belongs to the Siemens SIMATIC S7-1200 CPU 1214C family. Unlike the DC-powered 1HG40 version, the BG40 model uses an AC power supply, making the distinction important when you replace an existing PLC.
| Specification | 6ES7214-1BG40-0XB0 |
|---|---|
| Product family | SIMATIC S7-1200 |
| CPU | CPU 1214C |
| Power configuration | AC/DC/Relay |
| Supply voltage | AC 85–264 V, 47–63 Hz |
| Digital inputs | 14 DI, 24 V DC |
| Digital outputs | 10 DO, relay, 2 A |
| Analog inputs | 2 AI, 0–10 V DC |
| Program/data memory | 150 KB |
| Product type | Compact PLC |
These specifications come from Siemens’ current product documentation. Siemens also lists the model as 6ES7214-1BG40-0XB0, so you should verify the complete MLFB before placing an order.
The CPU 1214C combines PLC processing, digital I/O and analog inputs in a compact controller. This makes it suitable when you need to control a machine without building a large modular PLC rack.
Typical applications include:
For a replacement project, however, compatibility should come first. Check the part number, power supply, I/O configuration, firmware requirements and existing system architecture rather than choosing a CPU based only on the S7-1200 family name.
The two part numbers look similar, but their power configurations differ. This is one of the most important checks when sourcing a Siemens S7-1200 CPU.
| Item | 6ES7214-1BG40-0XB0 | 6ES7214-1HG40-0XB0 |
|---|---|---|
| CPU | 1214C | 1214C |
| Configuration | AC/DC/Relay | DC/DC/Relay |
| Power supply | AC 85–264 V | DC 20.4–28.8 V |
| Digital inputs | 14 | 14 |
| Relay outputs | 10 | 10 |
| Analog inputs | 2 | 2 |
| Memory | 150 KB | 150 KB |
Siemens confirms the BG40 as the AC/DC/relay version, while the HG40 is the DC/DC/relay version.
This difference is especially important if you are replacing a failed controller in an operating machine. Ordering the wrong power version can create unnecessary installation delays.
When you need a 6ES7214-1BG40-0XB0 supplier, follow these steps before confirming your order:
This approach reduces the risk of receiving a visually similar but electrically different PLC.
DUOMI CNC specializes in new, discontinued and hard-to-find automation spare parts, serving customers in more than 100 countries. Its portfolio covers Siemens, Fanuc, Allen-Bradley, ABB, Yaskawa, Mitsubishi, Danfoss, SEW-Eurodrive, Lenze, Schneider, KUKA, IFM, Heidenhain, SICK and other automation brands.
The company reports:
For urgent PLC replacement requirements, this combination of inventory, technical assistance and international logistics can simplify sourcing when a discontinued or difficult-to-find automation component is required.
Yes. 6ES7214-1BG40-0XB0 is a Siemens SIMATIC S7-1200 CPU 1214C. Siemens specifies it as an AC/DC/relay compact CPU with 14 digital inputs, 10 relay outputs and 2 analog inputs.
The main difference is the power configuration. 6ES7214-1BG40-0XB0 accepts AC 85–264 V, while 6ES7214-1HG40-0XB0 uses DC 20.4–28.8 V.
Yes. DUOMI CNC specializes in sourcing new and discontinued automation spare parts and can provide product condition, availability, quotation and shipping information for your procurement requirement.
Choosing the right SIMATIC S7-1200 CPU requires more than matching the CPU family. You should verify the complete Siemens MLFB, power configuration, I/O specification and product condition before replacing an installed controller. For 6ES7214-1BG40-0XB0, the AC/DC/relay configuration is a key identification point, especially when comparing it with the DC/DC/relay 6ES7214-1HG40-0XB0.
If you need a SIMATIC S7-1200 replacement, contact DUOMI CNC with the complete part number, required quantity and preferred condition. The team can check availability, provide a quotation and arrange global delivery for your automation spare parts requirement.
Need 6ES7214-1BG40-0XB0? Send DUOMI CNC the complete Siemens part number and quantity. You can request stock confirmation, product condition, warranty details, technical documentation and a shipping quotation before placing your order.
by 
