Key facts
- Brand
- Siemens
- Model
- S7-200CN
- Documents
- 4
- Languages
- ZH · EN
- Last added
- 2011-09-21
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Siemens S7-200CN Program Controller Manual
The manual covers the S7-200CN family of programmable logic controllers, describing each CPU variant, its I/O configuration, power requirements, and physical dimensions. It also includes wiring diagrams, communication options, and HMI integration.
Additional sections detail installation procedures, diagnostic LEDs, memory capacities, and supported communication protocols such as RS‑232 and RS‑485, helping users configure and maintain the controllers in industrial automation environments. This manual is written in Chinese.
Siemens S7-200CN specifications
| CPU Model (I/O) | S7-226 CN (24DI / 16DO) |
|---|---|
| Operating Voltage | 20‑28 V DC |
| Physical Dimensions | 80 mm × 90 mm × 62 mm |
| Memory Size | 4096 bytes |
| Communication Ports | RS‑232 / RS‑485 |
All Siemens S7-200CN documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the required power supply voltage for the S7-200CN?
The controller operates on a 20 V to 28 V DC power supply.
How much memory does each S7-200CN CPU contain?
Each CPU provides 4096 bytes of memory.
What is the power‑supply voltage range for the S7‑200CN CPU?
The CPU accepts a DC input of 20 V to 28 V.
How many digital inputs does the CPU 222 CN provide?
CPU 222 CN provides 8 digital inputs.
What communication interfaces are supported by the S7-200CN?
The S7-200CN supports RS‑232, RS‑485, USB and Modbus RTU interfaces.
What are the I/O capacities of the different CPU models?
CPU 221 provides 4 DI/4 DO, CPU 222 provides 8 DI/6 DO, CPU 224 provides 14 DI/10 DO, and CPU 226 provides 24 DI/16 DO.