Honeywell CC-PDIL01 51405040-176 Digital Input 24VDC Module – Series C DCS I/O Module

The Honeywell CC-PDIL01 51405040-176 Digital Input 24V Module is an industrial automation I/O module designed to acquire 24VDC discrete signals from field devices and provide reliable status information to a Honeywell DCS/control system.

The module is part of the Honeywell Series C I/O family and is designed for applications requiring dependable digital signal acquisition from switches, sensors, contacts, interlocks, alarms and other field devices. Honeywell documentation specifies that the CC-PDIL01 accepts 24VDC signals as discrete inputs and provides features including internal diagnostics, open-wire detection, galvanic isolation, optional redundancy and onboard excitation power.

The 51405040-176 version provides a high-density digital input solution with a specified input operating range of 18–30VDC, minimum ON sensing of 13VDC or 3mA, and maximum OFF sensing of 5VDC or 1.2mA.

Its optical galvanic isolation helps protect the control system from electrical disturbances between field-side signals and system electronics. Open-wire detection can also help identify field wiring faults and prevent invalid signal information from being used for process control.

This module is particularly suitable for process automation, industrial control, DCS systems, plant instrumentation, manufacturing automation, energy facilities and Honeywell Experion PKS installations.