Item Type: IP Network Relay Module_x000D_ Supply Voltage: 5V_x000D_ Current: Not less than 1A_x000D_ Two-channel relays can reach a single function rate of 2KW, AC load rated voltage 250V, current 10A, DC load rated voltage 30V, current 5A_x000D_ Size: Approx. 81 x 50 x 31mm / 3.2 x 2 x 1.2in_x000D_ Operating Temperature: -40 to 80._x000D_ Applications: _x000D_ 1.Can be used for smart home control, control router restart after network disconnection, etc._x000D_ 2. It can remotely control electric light, motor, and other electric equipment using mobile phones or computers for secondary development._x000D_ 3. Can be used for power failure detection in the computer room, can be connected to human body infrared sensors, can be connected to key switches, can be connected to smoke alarm output._x000D_ 4. Can be used for access control, computer control, remote control of electrical appliances_x000D_ 5. Can be connected to smoke alarm output, can be connected to human body infrared output_x000D_ 6. Can be connected to key switch, can be connected to any passive switching input, can also be connected to active switching input (connected to 5V active switching)._x000D_ 7. Can be controlled by external network, and can be controlled remotely by mobile phone._x000D_ Control Instruction: _x000D_ Send: on1 turns on the first relay_x000D_ Send: off1 turns off the first relay; the second control method is the same._x000D_ Send: read1 means to read the state of the first relay. If it returns on1, it means that the first relay is on, and off1 means that the first relay is off._x000D_ Delay control, such as_x000D_ Send: on1: 02 Means That The Relay Will Open After 2 Seconds, and send on: 12 means that the relay will open after 12 seconds. The maximum delay is 99 seconds._x000D_ For MODBUS TCP_x000D_ 1.01 opcode_x000D_ This operation code is to read the state of the relay. The relay address is 0010 on the first channel and 0011 on the second channel._x000D_ 2.05 opcode_x000D_ This operation code is to control a single relay. The relay address is 0010 on the first channel and 0011 on the second channel._x000D_ 3. 0F opcode_x000D_ This Operation Code Is To Control Two Relays. The Relay Addresses are: No. 0010, No. 0011.