The KL-M4542B platinum resistance input module maintenance manual provides wiring, installation, communication settings, and specifications.
The KL-M4542B is an 8‑channel platinum resistance (PT100) input module with optional RS‑232 or RS‑485 communication. It features high‑precision components, full protection for power, communication, and input sections, and a compact design for easy installation and debugging.
This manual covers the module’s technical specifications, installation procedures, terminal definitions and wiring, communication configuration (baud rate, address, and mode selection), and important usage notes such as power‑up requirements and safety precautions. This manual is written in Chinese.
| Effective resolution | 12 bits |
|---|---|
| Input type | Platinum resistance PT100 |
| Input range | -25~300 °C |
| Number of input channels | 8 |
| Data and alarm refresh period | <0.1 s per channel |
| Human‑machine interface | LED indicator |
| Supply voltage range | 24 V DC (18‑36 V DC) |
| Static power consumption | <1 W |
| Operating environment | -10 °C~60 °C, 5‑95 % RH |
| Storage temperature | -20 °C~70 °C |
The module operates on a 24 V DC supply, with an acceptable range of 18 V to 36 V DC.
The KL‑M4542B provides eight independent PT100 input channels.