30641 - 4-channel Modbus RTU Relay - Waveshare
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30641 - 4-channel Modbus RTU Relay - Waveshare
4-channel Modbus RTU Relay
The Waveshare 30641 is a Modbus RTU relay module designed to control up to 4 relay outputs from an RS485 link. It is suitable for automation applications, load control, and integration into an industrial cabinet.
Relay Control via Modbus RTU
Each relay can be controlled individually via the Modbus RTU protocol. The module allows electrical equipment to be controlled from a PLC, supervisor, RS485 converter, or compatible industrial gateway.
Interfaces / Protocols / Integration
The module uses an RS485 interface for Modbus RTU communication. The terminal blocks facilitate wiring of the relay outputs, and the status LEDs allow for quick monitoring of each channel's activation.
Industrial Design
The 30641 supports a wide range 7-36 VDC power supply. Its format is suitable for integration into a cabinet or on a DIN rail depending on the installation.
Applications
It is suitable for load control, machine automation, equipment supervision, and controlling lighting, pumps, motors, or actuators.
Highlights
- 4 output relays
- RS485 Modbus RTU communication
- Individually controllable relays
- Status LED per channel
- 7-36 VDC power supply
- Cabinet or DIN rail integration
| Specifications | |
|---|---|
External I/O |
4 output relays, RS485, and Modbus RTU
|
Power Supply |
7-36 VDC
|
Mounting Type |
DIN rail and Cabinet
|
|
|
|
Number of Serial Ports |
|
Supported Protocols |
Modbus RTU and RS485
|