Product Overview
MODBUS PD25Bis a professional dimming and speed regulation module with five independent 0-10V analog signal outputs. Each channel is independently controlled and can simultaneously drive five 0-10V LED dimming drivers or five 0-10V fan speed controllers. Supports RS485 bus (Modbus RTU), WiFi wireless, and Apple HomeKit control methods, suitable for commercial lighting, exhibition hall lighting, plant factories, and other scenarios that require multi-channel independent dimming.The professional dimming and speed regulation module, each independently controlled, can simultaneously drive 5 channels of 0-10V LED dimming drivers or 5 sets of 0-10V fan speed regulators. Supports RS485 bus (Modbus RTU), WiFi wireless, and Apple HomeKit control methods, suitable for commercial lighting, exhibition hall lighting, plant factories, and other scenarios that require multi-channel independent dimming.
Five channel independent control
- Channel 1-5 independent dimming: Each channel outputs 0-10V independently and can be adjusted from 0-100% without affecting each other
- Batch control: Supports multi-channel simultaneous setting to the same or different values
- Dimming curve: Supports linear and logarithmic (human perception) dimming curves
Control Mode Comparison
| Mode | Protocol | Delay | Applicable |
|---|---|---|---|
| RS485 Bus | Modbus RTU | <10ms | Central Control System Integration |
| WiFi | HTTP/TCP | <50ms | APP/HA Direct Connection |
| HomeKit | HAP | <100ms | Apple Home/Siri |
Modbus Register Mapping
The brightness values of channels 1-5 are mapped to hold registers 0x0000-0x0004, with a range of 0x0000-0x00FF (0-255 corresponds to 0-100%). Support function codes 03 (read) and 06/10 (write).
Installation and wiring
- DIN rail installation, optional back card for cabinet installation
- Power supply DC 12-24V
- 5 channels of 0-10V output terminals (Vout+, GND for each channel)
- RS485 A/B terminals
- Suggest using shielded twisted pair cables for 0-10V signal lines, with a length not exceeding 50 meters
🛒 Purchase and Consultation
The MODBUS products introduced in this article can be purchased through official channels.
📍 Modbas Intelligence|12th Floor, Tower A, Langqing Plaza, Guanyin Bridge, Jiangbei, Chongqing, China
📞 Phone:+86-023-65218879 | Duty phone:+86-17723047591
📧 Email: admin@modbus.com | 🌐 Official website:www.modbus.cn
📱 WeChat Mini Program Search"Modbus Debugging Assistant"for more product information
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