G6I-D24B

Description

A 32-point DC input module for the G6 / GM6 system, specifically designed for 24 V source (PNP) input wiring. Uses photocoupler isolation per channel to reduce noise.

The Polar Energy Assessment:

The G6I-D24B is tailored for systems where 24 V sourcing sensors predominate. With 32 discrete points, it provides high-density digital input while maintaining reliable isolation and signal integrity. According to the GM6 user manual, the module supports an input voltage range of 20.4–28.8 V DC and typical “on” current of 4.3 mA.

Pros

• Very high channel count (32 points) means efficient I/O usage.
• Photocoupler isolation helps with electrical noise.
• Designed for 24 V source wiring (PNP), which is common in modern sensor networks.

Limitations

• Only for 24 V sourcing; not compatible with 12 V or sinking (unless different variant).
• Large number of inputs means more wiring complexity.
• Certain GM6 power modules must support enough current for 32-point I/O.

Typical use cases

• Large sensor banks in 24 V PNP-type sensor systems.
• Automation panels where many discrete high-side signals need to be read.
• Retrofitting older PLCs while upgrading to high-density digital inputs.