27876 - 8-Channel PoE Ethernet Modbus Relay + Inputs - Waveshare

8-Channel PoE Ethernet Modbus Relay with Digital Inputs

The Waveshare 27876 is a PoE Ethernet relay module with 8 relay outputs and 8 digital inputs. It incorporates the network functions of the PoE Ethernet version while adding input reading for more comprehensive automation scenarios.

8 Relays and 8 Digital Inputs

This version differs from the 24964 by the presence of 8 isolated digital inputs. It allows both controlling relays and reading field states, such as dry contacts, buttons, sensors, or status feedback.

Interfaces / Protocols / Integration

The module communicates via Ethernet and supports Modbus TCP, Modbus RTU, and MQTT. The digital inputs can be used to trigger or monitor actions according to the chosen automation architecture.

Industrial Design

Power can be supplied via 7-36 VDC or PoE. The enclosure is designed for DIN rail mounting in a technical cabinet.

Applications

It is suitable for installations requiring both output control and status acquisition: automation, supervision, remote management, access control, technical buildings, and industrial equipment.

Highlights

• 8 output relays
• 8 isolated digital inputs
• PoE Ethernet
• Modbus TCP, Modbus RTU, and MQTT
• 7-36 VDC or PoE power supply
• DIN rail mounting