1PCS Modbus-Rtu 1 Channel 5V Relay Module Switch Input / Output RS485 TTL Communication | Обустройство дома

1PCS Modbus-Rtu 1 Channel 5V Relay Module Switch Input / Output RS485 TTL Communication | Обустройство дома

Input and output wiring and function description: Output section: NC (normally closed) COM (common foot) N0 (normally open) Load 220V 10A is recommended to be below 220V 6A 1. Just a switch is turned off and off without any voltage output. 2. The relay can only be controlled to open and close by 485 communication. 3. By default, NC COM is turned on. When 485 sends an open command, NC and COM are disconnected, and NO and COM are connected. on the contrary.   Input section: IN1 is connected to a switch or voltage signal (3V - 30V), 1. The status of the switch can only be read by the computer. The relay cannot be controlled. If necessary, the relay can be controlled to communicate with the store. 2. IN1 switch (no voltage signal): IN1 is connected to VCC computer to get 1 otherwise 0   Hardware resources: 1. RS485 communication interface 2. TTL communication interface 3. 1 input 4. 1 output 5. A user LED indicator 6. A STM32F030F4 microcontroller 7.1 relay status indicator LED lights 8. Power terminal interface (12V power supply)   Modbus RTU instruction Baud rate: 9600 8 NONE 1 Hexadecimal transmission Hexadecimal reception   Steps:  1. Software set communication baud rate 2. Set the address (device address used for communication, the default address is 01) /************************************************* ******************/ Note: Only one device is connected, otherwise the address will be set. Set the address to: 01 00 10 00 00 00 01 02 00 01 6A 00// Modified to 01 Set the address to: 02 00 10 00 00 00 01 02 00 02 2A 01// Modified to 02 Set the address to: 03 00 10 00 00 00 01 02 00 03 EB C1// Modified to 03   Read address 00 03 00 00 00 01 85 db return: 00 03 02 00 01 44 44 //01 is the address /************************************************* ******************/ /************************************************* ******************/ The meaning of each byte: [Address 1] //-------------------------------------------- Relay No. 1 is on: 01 05 00 01 01 00 9d 9a   Byte 1: Address Byte 2: Function? Byte 3 4: Register Address Byte 5 6: Register Data Byte 7 8: CRC check //========================================================= ============== [Address 1] //-------------------------------------------- Relay No. 0 is on: 01 05 00 00 FF 00 8C 3A Relay No. 0 is closed: 01 05 00 00 00 00 CD CA //-------------------------------------------- Relay No. 1 is on: 01 05 00 01 FF 00 DD FA Relay No. 1 is closed: 01 05 00 01 00 00 9C 0A //------------------------------------------- Relay No. 2 is on: 01 05 00 02 FF 00 2D FA Relay No. 2 is closed: 01 05 00 02 00 00 6C 0A //------------------------------------------- Relay No. 3 is open: 01 05 00 03 FF 00 7C 3A Relay No. 3 is closed: 01 05 00 03 00 00 3D CA //------------------------------------------- Relay No. 4 is on: 01 05 00 04 FF 00 CD FB Relay No. 4 is closed: 01 05 00 04 00 00 8C 0B //-------------------------------------------- Relay No. 5 is on: 01 05 00 05 FF 00 9C 3B Relay No. 5 is closed: 01 05 00 05 00 00 DD CB //------------------------------------------- Relay No. 6 is on: 01 05 00 06 FF 00 6C 3B Relay No. 6 is closed: 01 05 00 06 00 00 2D CB //------------------------------------------- Relay No. 7 is on: 01 05 00 07 FF 00 3D FB Relay No. 7 is closed: 01 05 00 07 00 00 7C 0B //------------------------------------------- /************************************************* ***********************/ Read No. 0 relay status: 01 01 00 00 00 01 FD CA Read relay status No. 1: 01 01 00 01 00 01 AC 0A Read the status of relay No. 2: 01 01 00 02 00 01 5C 0A Read relay status No. 3: 01 01 00 03 00 01 0D CA Read relay status No. 4: 01 01 00 04 00 01 BC 0B Read relay status No. 5: 01 01 00 05 00 01 ED CB Read relay status No. 6: 01 01 00 06 00 01 1D CB Read relay status No. 7: 01 01 00 07 00 01 4C 0B Read all relay status: 01 01 00 00 00 08 3D CC /************************************************* **********************/ Flash instruction: Description: Close immediately after turning on, 100MS is one unit [1 represents 100MS]   Address 1: Relay No. 0 is flashed off: 01 05 02 00 07 00 CE 42 //700MS = 7*100MS = 700MS Relay No. 1 is flashed off: 01 05 02 01 08 00 9A 72 //800MS Return: same as sending the command Address 2: Relay No. 0 is flashed off: 02 05 02 00 05 00 CF 11 //500MS Relay No. 1 is flashed off: 02 05 02 01 06 00 9E 21 //600MS //========================================================= ======================= Fully extinguished: 01 0F 00 00 00 08 01 00 FE 95 Full light: 01 0F 00 00 00 08 01 FF BE D5 /************************************************* *********************/ Single flip instruction: Relay No. 0 flipped: 01 05 00 00 55 00 F2 9A Relay No. 1 flipped: 01 05 00 01 55 00 A3 5A Relay No. 2 flipped: 01 05 00 02 55 00 53 5A Relay No. 3 flipped: 01 05 00 03 55 00 02 9A Relay No. 4 flipped: 01 05 00 04 55 00 B3 5B Relay No. 5 flipped: 01 05 00 05 55 00 E2 9B Relay No. 6 flipped: 01 05 00 06 55 00 12 9B Relay No. 7 flipped: 01 05 00 07 55 00 43 5B    All flip instructions: 01 05 00 00 5A 00 F7 6A /************************************************* ********************/ Read all interfaces input status Send: 01 02 00 00 00 08 79 CC //Read 8 input states Back: 01 02 01 00 A1 88