Opis
Relay communication: multi-unit network 485 communication, based on MBDBUS-RTU protocol, the default communication address is 1, the user can modify the address by command
IN1 – IN4 are used by the switch. The status of the switch is read by 485, not by the input control relay output.
1. S1 reset button
2. D5 running LED indicator
Specifications:
- 4 relays output
- STM8S103F3 Programmable Microcontroller
- 4 Optocoupler isolation
- 4 relay closed LED indicating lamp
- 4 group input connections
- 1 group RS485 communication connection.
- 1 power lights
- 1 user LED lamp
- Reset Key
- DC 12V Input Jack
- One SWIM download interface – (STLINK-V2 download)
Pin description:
1. LED connected to user LED
2. TX RX is connected to 485 port and pin TTL port
3. KEY user button (red button on the left)
4. EN 485 use end
5. IN1 -IN4 input port is directly connected to the terminal
6. K1 – K4 relay output control
7. SWIM burning program J13
