Description
Product Overview
Modbus illuminance transmitter is a high-precision and high stability illuminance measurement instrument. It adopts an aluminum shell with a protection level of IP65, which can be used outdoors or in harsh on-site environments. The transmitter adopts 485 communication and standard ModBus RTU communication protocol. The communication address and baud rate can be set, and the maximum communication distance is 2000 meters. The product is powered by a wide voltage range of 7-30V and is mainly used in agricultural greenhouses, flower cultivation greenhouses, agricultural fields, electronic equipment production lines, and other occasions that require light intensity monitoring.
Product Features
- High precision measurement: The measurement range is optional from 0-60000 Lux to 0-20000 Lux, and the measurement error of high-precision models is ≤ 4%.
- 485 Communication: Standard ModBus RTU communication protocol, communication address and baud rate can be set, with a maximum communication distance of 2000 meters.
- Durable and sturdy: Made of aluminum casing with a protection level of IP65, it can be used outdoors or in harsh on-site environments.
- Wide voltage power supply: 7-30V DC wide voltage power supply.
Main Technical Indicators
| Parameter Name | Indicator |
|---|---|
| DC Power Supply | 7-30V DC |
| Maximum power consumption | 0.4W |
| Accuracy | ± 7% (25 ℃) High accuracy ± 4% (25 ℃) |
| Illumination intensity range | 0-65535Lux; 0-200000 Lux |
| Long term stability | ≤ 5%/y |
| Response time | ＜ 1s |
| Output signal | RS485 (ModBus protocol) |
Product Application
- Agricultural greenhouse: Monitor the light intensity inside the greenhouse, achieve intelligent temperature control, supplementary lighting and other functions.
- Flower cultivation greenhouse: Monitor light intensity to provide suitable lighting conditions for flower growth.
- Agricultural fields: Monitor light intensity, guide agricultural activities, and improve agricultural production efficiency.
- Electronic equipment production line: Monitor the illuminance of the production line to ensure product quality.
- Installation method:
- Use screws to fix the sensor in the installation position through the mounting holes on the sensor.
- Ensure that the equipment is parallel to the ground (adjustable hand screw and check the horizontal bubble status to determine if it is parallel). After installation, remove the protective cover.
- After installation, remove the protective cover.
- Wiring Instructions:
- Wide voltage power supply can input 7-30V. When wiring the 485 signal line, be careful not to connect the A/B lines in reverse, and ensure that the addresses of multiple devices on the bus do not conflict.
- When wiring the 485 signal line, be careful not to connect the A/B lines in reverse, and ensure that the addresses of multiple devices on the bus do not conflict.
Configure software
- **Software selection: * * Open the package, select "Debugging Software" ->"485 Parameter Configuration Software", find "485 Parameter Configuration Tool" and open it.
- Parameter setting:
- Select the correct COM port.
- Connect only one device separately and power it on. Click on the software's test baud rate, and the software will test the current device's baud rate and address. The default baud rate is 4800bit/s and the default address is 0x01.
- Modify the address and baud rate according to usage needs, and also query the current functional status of the device.
- If the test is unsuccessful, please recheck the device wiring and 485 driver installation.
Communication Protocol
- * * Encoding: * * 8-bit binary
- * * Data bits: * * 8-bit
- * * Parity check bits: * * None
- * * Stop bit: * * 1 bit
- * * Error Check: * * CRC (Redundant Cyclic Code)
- * * Baud Rate: * * 1200 bit/s, 2400bit/s, 4800bit/s, 9600 bit/s, 19200bit/s, 38400bit/s, 57600bit/s, 115200bit/s Can be set, factory default is 4800bit/s
