Products Description

The Honeywell CC-PDIL01 (51405040-176) is a 32-channel 24 VDC Digital Input Module for Honeywell Series C I/O systems. It provides reliable discrete signal acquisition with optical isolation, open-wire detection, built-in diagnostics, and support for redundant configurations.
Technical Specifications For CC-PDIL01 51405040-176
| Parameter |
Specification |
| Model |
CC-PDIL01 |
| Part Number |
51405040-176 |
| Product Type |
24 VDC Digital Input Module |
| I/O Function |
Digital Input |
| Number of Input Channels |
32 |
| DI Power Voltage Range |
18–30 VDC |
| Input Impedance |
4.2 kΩ |
| Isolation Technique |
Optical isolation in IOM |
| Input Filter & Isolation Delay |
5 ms ±20% |
| Redundancy |
Supported with appropriate IOTA |
| Field Power Selection |
Internal or external |
| On-board Excitation Power |
Yes |
| Direct / Reverse Input Indication |
Yes |
| Non-incendive Field Power |
Supported |
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FAQ FOR the CC-PDIL01 51405040-176
Q: What is the main advantage of using the CC-PDIL01 51405040-176 in a large I/O system?
A: Its 32-channel density, combined with open-wire diagnostics, optical isolation, field-power flexibility and redundancy support, makes it useful where a large number of 24 VDC discrete signals must be integrated into a Series C control system.
Q: Can internal or external field power be used?
A: Yes. The CC-PDIL01 supports internal or external field power selection.
Q: Is the CC-PDIL01 51405040-176 an analog input module?
A: No. The CC-PDIL01 is a 24 VDC digital input module. It is intended for discrete ON/OFF signals rather than continuous analog process measurements.
Q: Is the CC-PDIL01 51405040-176 suitable for existing Series C installations?
A: Yes. The module is part of the Series C I/O architecture and is associated with the corresponding Series C IOTAs used for non-redundant and redundant installations.
KEY FEATURE
Open-Wire Detection
Detects an open field wire and reports the affected channel condition instead of treating a faulty connection as a normal process signal.
Bad PV Identification
A channel diagnosed with an open wire can be assigned an invalid status, helping prevent an apparently valid process value from being used for an incorrect control action.
Optical Isolation
Optical isolation is used within the I/O module to separate field-side signals from the module electronics.
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