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Siemens
SIMATIC S7-200 CPU 221
6ES7 211-0AA23-0XB0
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Price Range: $450-600 | Professional quotation within 24 hours
SIMATIC S7-200 CPU 221 is a compact, micro PLC designed for small automation applications. This DC/DC/DC version features 6 digital inputs and 4 digital outputs. The CPU 221 was discontinued in October 2017 but remains highly sought after for legacy system maintenance. It supports up to 2 expansion modules and has built-in RS-485 communication. Ideal for simple OEM machines, pump control, and conveyor systems where replacement parts are critical....
| Digital Inputs | 6 |
|---|---|
| Digital Outputs | 4 (Transistor) |
| Power Supply | 24V DC |
| Program Memory | 4 KB |
| Data Memory | 2 KB |
| Execution Time | 0.37 μs/instruction |
| Expansion Modules | 2 max |
| Communication | 1x RS-485 |
| Dimensions | 90 x 80 x 62 mm |