Waveshare 24921 Modbus RTU 16-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits

• Product type: Relay Module
• Brand: Waveshare
• Compatibility: Modbus RTU 16-Ch Relay Module
• Material: ABS
• Key feature: Industrial-grade with multiple isolation protection
• Color/Variant: Not specified
• Intended use: Industrial applications
• Category: Arduino & SCM Supplies

This product is an industrial-grade 16-channel relay module controlled by RS485 bus, using Modbus RTU protocol, built-in power isolation, ADI magnetic isolation, resettable fuse, TVS diode and other protection circuits, and equipped with ABS case. The Modbus RTU 16 channel relay is very easy to use. Due to its fast communication speed, stability, reliability and security, it is ideal for industrial control equipment and/or applications with high communication requirements. Configurable device address (1-255), multiple devices can be cascaded on the RS485 bus. It has the function of blinking and blinking. By passing parameters to the command, the relay can be opened for a period of time and then automatically closed. On-board integrated power isolation, providing stable isolation voltage, no additional power supply is required at the isolation end. Onboard integrated ADI magnetic isolation, which can realize signal isolation, high reliability, strong anti-interference and low power consumption. Onboard resettable fuse and TVS (transient voltage suppressor), effectively suppress surge voltage and transient peak voltage in the circuit, provide overcurrent/overvoltage, lightning protection, anti-static. On-board optocoupler isolation to prevent the relay from being interfered by the high-voltage circuit. On-board dedicated relay driver chip, built-in freewheeling diode protection, stronger and more stable driving capability. Anti-reverse connection circuit to prevent accidental damage to the circuit by wrong connection. High quality relay, contact rating: ≤10A 250VAC/30VDC. Rail-type ABS shell, easy to install and safe to use. There are 3 LEDs for indicating MCU status and signal sending and receiving status. Packing list: -Modbus RTU relay 16CH x1 -US Plug 5V 2A power supply (with EU head adapter) x1