Relejni modul 4CH 12VDC ModBus RTU

Opis

- This is a 4 Channel 12V Relay Output Board Module,

- Easy to install,

- Good quality, durable,

- Portable design, easy to operate,

- Low power, high precision,RS485 / TTL Communication,

- S1 reset button,

- D5 running LED indicator,

- 4 relay output (one normally open, one normally closed),

- STM8S103F3 microcontroller,

- 4 optocoupler isolation relay output,

- 4 relay closed LED indicators,

- Round DC interface, interface with terminal DC. Convenient power supply wiring (supply voltage 5V or 12V, depending on the voltage of the relay),

- 4 input interface (dry node input, passive input, connected to GND),

- 1 RS485 communication interface,

- 1 power indicator,

- 1 user LED lights,

- Reset button,

- A SWIM download interface - (STLINK-V2 download program, users can develop programs twice).