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.
| 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 |
The controller operates on a 20 V to 28 V DC power supply.
Each CPU provides 4096 bytes of memory.
The device includes RS‑232 and RS‑485 ports for serial communication.