The Siemens SIMATIC S7-200 CPU 222, identified by the MLFB 6ES7 212-1BB23-0XB8, is a trusted workhorse for entry-level automation projects. This compact PLC combines a 24 VDC transistor output stage with an integrated AC power supply, making it a versatile choice for small machinery, conveyor controls, and simple process automation. Its 14 inputs and 8 outputs handle discrete logic with ease, while the single RS-485 port enables straightforward programming via MicroWin and communication with operator panels or drives. Built for reliability, the CPU 222 offers 8 KB of program memory and a real-time clock for time-stamped events. For engineers seeking a cost-effective yet robust controller, this unit delivers consistent performance across standard industrial temperature ranges.
| Parameter |
Specification |
| Product Type |
SIMATIC S7-200 Micro PLC |
| Model |
CPU 222 |
| Order Number (MLFB) |
6ES7 212-1BB23-0XB8 |
| Power Supply Voltage |
AC 100–240 VAC (47–63 Hz) |
| Output Type |
Transistor (24 VDC, sourcing) |
| Number of Digital Inputs |
14 (24 VDC, sink/source) |
| Number of Digital Outputs |
8 (24 VDC, 0.75 A each) |
| Program Memory |
8 KB (user program + data) |
| Data Memory (V-memory) |
5 KB (retainable) |
| Communication Ports |
1 × RS-485 (PPI, MPI, freeport) |
| Real-Time Clock |
Yes (with backup capacitor) |
| High-Speed Counters |
4 (single-phase: 30 kHz; two-phase: 20 kHz) |
| Pulse Outputs |
2 (20 kHz, open-drain) |
| Max. Local I/O Expansion |
Up to 2 expansion modules |
| Max. Total I/O |
80 (digital) or 28 (analog) with expansion |
| Programming Software |
STEP 7-Micro/WIN |
| Operating Temperature |
0°C to 55°C |
| Dimensions (W × H × D) |
90 × 80 × 62 mm |
| Weight |
Approx. 270 g |
| Protection Class |
IP20 |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22