SIEMENS LOGO DM8 24R PLC Digital Expansion Module

The SIEMENS LOGO DM8 24R is a compact digital expansion module engineered to extend the I/O capacity of Siemens LOGO! logic controllers. Designed for industrial automation and building control applications, the SIEMENS LOGO DM8 24R adds 4 digital inputs and 4 relay outputs in a space-saving 2-module wide DIN-rail enclosure.

Operating on a 12/24V DC supply, this expansion unit allows system builders to seamlessly integrate additional sensors, switches, actuators, and power relays into existing automation control systems. Its plug-and-play side-bus connector ensures high-speed communication with the LOGO! main controller base without complex wiring setup.

Key Features of the Siemens LOGO! DM8 24R

• I/O Expansion: Adds 4 digital inputs (12/24V DC) and 4 relay outputs (5A load capacity) to any compatible Siemens LOGO! logic module

• Versatile Relay Switching: Isolated relay outputs support both DC and AC loads, making it ideal for controlling pumps, valves, and lighting circuits

• DIN-Rail Mounting: Standard 35 mm DIN-rail mountable housing with a compact 36 mm (2 TE) footprint for control panel space efficiency

• Integrated Bus Interface: Side-expansion bus system allows direct snap-on connection to the main PLC CPU unit

• Status LED Indicators: Front-facing LED status lights provide instant visual feedback for input and output operating states

Technical Specifications

Package Contents

• 1 × SIEMENS LOGO DM8 24R Digital Expansion Module

• Installation Manual and Data Sheet