Industrial Modbus RTU 8-Ch Relay Module (D) with Digital Input and RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply (Modbus RTU Relay (D))

Features ● Configurable device address (1~255), multi devices can be cascaded on RS485 bus ● Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the relay for a while and then close it automatically ● Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal ● Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption ● Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & anti-electrostatic ● Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit ● Adopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability ● Supports passive and active digital input, with bi-directional optocoupler isolation, built in debouncing algorithm. The relay supports digital input linkage control or toggle control ● Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection ● High quality relay, contact rating: ≤10A 250VAC/30VDC ● Rail-mounted ABS plastic enclosure, easy to install, safe to use ● Multiple LEDs for indicating the MCU status and signal transceiving status Specifications POWER SUPPLY: 7~36V COMMUNICATION INTERFACE: RS485 RELAY CHANNELS: 8 DIGITAL INPUT: 8DI, 5~36V, passive / active input (NPN or PNP), built-in bi-directional optocoupler isolation COMMUNICATION PROTOCOL: Standard Modbus RTU protocol RS485 ADDRESS: 1~255 PACKAGE CONTENT 1. Modbus RTU Relay (D) x1 2. Screwdriver x1

• Configurable device address (1~255), multi devices can be cascaded on RS485 bus. Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the relay for a while and then close it automatically.
• Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal. Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption.
• Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightningproof & anti-electrostatic. Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit.
• Adopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability. Supports passive and active digital input, with bi-directional optocoupler isolation, built in debouncing algorithm. The relay supports digital input linkage control or toggle control.
• Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection. High quality relay, contact rating: ≤10A 250VAC/30VDC.
• Rail-mounted ABS plastic enclosure, easy to install, safe to use. Multiple LEDs for indicating the MCU status and signal transceiving status.