Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | C-Series Digital Output Module |
| Manufacturer | Honeywell |
| Order Code | CC-PDOB01 |
| Part Number | 51405043-175 |
| System Compatibility | Experion PKS C200 / C200E / C300 controllers |
| Channel Count | 32 digital outputs |
| Output Type | 24VDC bussed output |
| Redundancy | Optionally redundant (IOTA dependent) |
| Required Terminal | C-Series DO IOTA (CC-TDOB01 non-redundant / CC-TDOB11 redundant) |
| Communication | C-Series I/O link via controller backplane |
| Diagnostics | Power-up and run-time self-diagnostics with fault indication |
| Documentation | Honeywell Experion PKS C-Series I/O hardware manuals |
Product Introduction
The CC-PDOB01 is not a standalone relay card, not a generic 24VDC PLC output module, and not compatible with Honeywell HPM/PM I/O racks. It is a C-Series 32-point 24VDC bussed digital output module designed for Honeywell Experion PKS C200/C200E/C300 systems.
It mounts into a C-Series I/O rack and mates with a DO IOTA terminal board — typically CC-TDOB01 for non-redundant applications or CC-TDOB11 for redundant configurations. The module receives output commands from the C300/C200E controller over the C-Series I/O link and switches 24VDC to field devices such as solenoid valves, interlock relays, permissive circuits, and status indicators. Because it is a bussed output type, all channels share the same 24VDC output bus, which simplifies wiring but requires careful fuse and load-group planning.
QA/QC Transparency SOP
- Intake & Origin Verification — Record full code CC-PDOB01, P/N 51405043-175, firmware revision, serial number, and physical condition. Reject units with damaged backplane connectors, burnt output drivers, or missing labels.
- Live Functional Testing — Install on a C-Series test rack with the correct DO IOTA. Command each of the 32 channels ON/OFF via a C300/C200E test controller or simulated I/O link. Verify LED status and field-side terminal voltage.
- Electrical Parameter Tests — Measure output voltage per channel under load. Check bus integrity, channel isolation, and short-circuit/open-load diagnostics. Verify fuse continuity on the IOTA if applicable.
- Firmware/Config Verification — Read module identity, firmware, and diagnostics through Control Builder / Experion PKS. Capture screenshots and save a backup record. Flag any revision mismatch against the site standard.
- Final QC & Anti-Static Packaging — Seal in ESD bags with desiccant. Include test report, nameplate photos, IOTA compatibility note, and a “verify with Honeywell C-Series manual before installation” warning.
Field Engineer Gotchas
- IOTA selection determines redundancy. CC-PDOB01 can be optionally redundant, but only when paired with a redundant IOTA such as CC-TDOB11. Using CC-TDOB01 gives you non-redundant operation.
- It is a bussed output, not isolated per channel. All 32 outputs share the 24VDC bus. A short on one channel can affect the entire group unless the IOTA fuse scheme isolates it properly.
- Not compatible with HPM/PM I/O. This is a C-Series module for C200/C200E/C300 controllers. It will not fit or function in legacy HPM, PM, or FTA-based racks.
- Vendor specs are inconsistent online. Some third-party listings claim 8 channels, NPN transistor output, IP67 rating, or 48-channel mixed I/O — those descriptions are incorrect for CC-PDOB01. Always cross-check against P/N 51405043-175 and the Honeywell manual.
- Firmware revision matters. A module with an older firmware level may not be recognized by a newer C300/C200E controller revision, or may lack updated diagnostics. Verify compatibility before hot-swapping.
- Load type affects reliability. Inductive loads (solenoids, relays) require proper flyback protection. Without it, output drivers can degrade prematurely even if the module passes initial testing.

Honeywell CC-PDOB01
Application Scenarios
- Drives 32 field relays for pump permissives, valve position confirmations, and interlock outputs in a refinery or chemical plant.
- Redundant safety permissive panel. Paired with CC-TDOB11 for optionally redundant 24VDC outputs feeding ESD permissive relays, where channel availability must survive a single IOTA failure.
- Handles discrete output commands for batch valves, agitator start relays, and CIP sequence actuators in food/pharma applications.
- Brownfield I/O migration. Replaces aging C-Series DO modules during a planned outage, with channel mapping verified against the existing Control Builder database.
FAQ
Yes. It is a 32-point 24VDC bussed digital output module for Honeywell C-Series I/O.
Yes. CC- is compatible with , C200, and controllers in the Experion PKS C-Series I/O architecture.
Does it support redundancy?
Optionally. Redundancy depends on the IOTA. CC-TDOB11 supports redundant configuration; CC-TDOB01 does not.
What terminal board does it need?
A C-Series DO IOTA — typically CC-TDOB01 (non-redundant) or CC-TDOB11 (redundant).
Is it compatible with Honeywell HPM I/O?
No. It is a C-Series module and will not work in HPM/PM I/O racks.
What is the correct part number?
CC-, P/N 51405043-175.
Where can I get the official specifications?
Request the C-Series I/O hardware manual from Honeywell or an authorized distributor. Do not rely solely on third-party vendor pages, which frequently contain conflicting data.


