PRODUCT DESCRIPTION
The LC 4-channel Modbus relay module features a reliable 8-bit MCU and an RS485 communication chip, fully supporting the MODBUS RTU protocol over RS485. This module can detect four input signals and control two relay outputs, making it ideal for applications that require digital signal detection or power control. Its robust design ensures stable performance in a variety of automation and control tasks.
Features:
- On-board mature and stable 8bit MCU and MAX485 level conversion chip
- Communication protocol: support standard Modbus RTU protocol
- Communication interface: Support RS485 / TTL UART interface
- Communication baud rate: 4800/9600/19200, default 9600bps, support power saving
- Photocoupler input signal range: DC3.3-30V (This input cannot be used for relay control)
- Output signal: relay switch signal, support manual, flash-off, flash-off mode, the delay base of flash-off / flash-off is 0.1S, the maximum settable flash-off / flash-off time is 0xFFFF * 0.1S = 65535 * 0.1 S = 6553.5S
- Device address: range 1-255, default 255, support power-down save
- Onboard one 5V, 10A / 250V AC 10A / 30V DC relay,
- Continuously attract 100,000 times, with diode leakage protection, short response time
- Onboard relay switch indicator
- Supply voltage: DC7-24V, with input anti-reverse protection
- Board Dimension(L x W x H) mm: 90 x 92 x 20
- Weight: 92gm
Specification:
| On-board Chip | MAX485 |
|---|---|
| Communication Protocol | Modbus RTU protocol |
| Communication Interface | Support RS485 / TTL UART interface |
| Operating Voltage (VDC) | 5VDC |
| No. of Channels | 4 |
| Shipping Weight | 0.1 kg |
| Shipping Dimensions | 8 × 5 × 3 cm |
Package includes:
1 x 7-24V Modbus RTU 4 Channel Relay Module RS485
