Arduino Nano-based industrial relay module with 10 I/Os for monitoring, control, and automation. Relay output variant of the DFR0898; choose this when direct load switching is needed rather than isolated signal outputs.
12-24V DC board power input, from DFRobot product specification “Power Input: 12-24V DC” and “Operating Voltage Range: 11.4~25.4V DC”.
Power return/ground side of the module power input; paired with the 12-24V DC power input stated by the DFRobot product specification.
Ten channel digital input interface. DFRobot states “With 10 I/O interfaces” and “Digital Input: 3.3-24V DC (10Hz)”.
Ten channel relay output interface for switching loads; DFRobot describes a ten-channel relay-based I/O structure and relay outputs for loads such as motors, pumps, lighting systems, and alarm circuits.
RS485 field communication interface; DFRobot states RS485 connectivity and Modbus RTU support for the relay module.
Ethernet network interface; DFRobot states Ethernet connectivity and Modbus TCP support for the relay module.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| Power input + | power | 12-24V DC board power input, from DFRobot product specification “Power Input: 12-24V DC” and “Operating Voltage Range: 11.4~25.4V DC”. | 12-24V DC input, operating range 11.4~25.4V DC | |
| Power input - / GND | ground | Power return/ground side of the module power input; paired with the 12-24V DC power input stated by the DFRobot product specification. | 0V return for 12-24V DC input | |
| Digital inputs 1-10 | input | Ten channel digital input interface. DFRobot states “With 10 I/O interfaces” and “Digital Input: 3.3-24V DC (10Hz)”. | 3.3-24V DC digital input | |
| Relay outputs 1-10 | output | Ten channel relay output interface for switching loads; DFRobot describes a ten-channel relay-based I/O structure and relay outputs for loads such as motors, pumps, lighting systems, and alarm circuits. | Digital isolated output rated 24V DC per product specification | |
| RS485 | communication | RS485 field communication interface; DFRobot states RS485 connectivity and Modbus RTU support for the relay module. | ||
| Ethernet | communication | Ethernet network interface; DFRobot states Ethernet connectivity and Modbus TCP support for the relay module. |
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