Product data for the Honeywell DT200 networked temperature control system designed for HVAC group control applications with ModBus RTU communication.
The Honeywell DT200 series networked temperature control system is an intelligent control system designed for HVAC equipment group control applications. It features area networking capabilities using the ModBus RTU communication format, supporting functions such as group control, temperature setting, and energy saving control. The system is flexible for both single-unit operation and networked control. This manual is written in Chinese.
| Communication Format | RS485 ModBus RTU |
|---|---|
| Processor | 16-bit CPU with EEPROM |
| Max Devices per Loop | 31 units |
| Operating Voltage | 100-240 Vac, 50/60Hz |
| Water Valve Control Rating | 5A, 250Vac |
| Fan Speed Control Rating | 10A, 250Vac |
| Temperature Sensor Range | 0 °C - 50 °C |
| Accuracy | ± 0.3 °C @ 25 °C |
| Operating Temperature | 5 °C - 35 °C |
| Protection Rating | IP31 |
The system uses the RS485 ModBus RTU communication format for all communication interfaces.
Each loop can control a maximum of 31 devices.
The accuracy is ± 0.3 °C at 25 °C.