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Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Input/Output Model | CC-PDOB01 — 24V Digital Output, Field Isolated, Bussed |
| IOTA Models | CC-TDOB01 (Non-Redundant, 9″); CC-TDOB11 (Redundant, 12″) |
| Output Channels | 32 |
| Output Type | Source |
| Load Voltage | 15–30 VDC max |
| Load Current, No Short (per channel / per 8 ch / per module) | 0.5 A / 4 A / 6 A |
| Load Current, One Short Condition | 0.5 A / 3 A / 6 A |
| Load Current, Two Short Condition | 0.5 A / 1.5 A / 6 A |
| Galvanic Isolation | 1500 VAC RMS or ±1500 VDC |
| On-State Voltage | 24 V typ. @ 0.5 A load |
| Off-State Voltage | 0 V max (3.3 VDC max under no-load) |
| Off-State Leakage Current | 5.0 µA max |
| Turn-On/Turn-Off Time | 10 ms max |
| Gap on Redundant Switchover | None (0 ms) |
| Protection | Fuse-less electronic short-circuit protection, per channel |
| Alt. Config (Relay IOTA) | Same IOM on CC-TDOR01/11 — 32 Form A/B dry contacts, 3A @ 125/250VAC resistive |
Product Introduction
The Honeywell CC-PDOB01 pushes 32 channels of bussed, source-type 24VDC digital output on the Experion PKS C300 platform — driving solenoids, interposing relays, and other process equipment directly, with no in-line fusing to maintain. The same module doubles as the driver for the Relay IOTA (CC-TDOR01/11), giving you isolated dry-contact outputs off identical hardware.
Fuse-less short-circuit protection shuts down power to a shorted channel without blowing anything — the channel just stays de-energized until the fault clears, then resumes automatically. Per-channel FAILOPT configures hold-last-value or shed-to-safe-value behavior on an IOM fault.
CC-PDOB01
CC-PDOB01
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No status LED on IOM | IOTA/rack power loss | ❌ Low | Measure 24 VDC bus at IOTA power terminals | Check power supply before replacing the IOM |
| One channel won’t energize | Field-side short triggering fuse-less protection | ❌ Low | Measure load resistance/short at the field terminal | Clear the field short — module will re-energize automatically, not a defect |
| Multiple channels in same 8-ch group de-energized | Group current limit exceeded (1.5A–4A per group depending on short count) | ✅ Medium | Check total group load current against the per-8-channel limit | Redistribute load across groups or reduce simultaneous loads |
| Output stuck ON with no command | Field wiring miswire or IOM output stage fault | ✅ High | Verify commanded state in Control Builder vs. actual field voltage | If commanded OFF but field stays energized, replace the IOM |
| Output stuck at last value after IOM fault | FAILOPT configured as “hold last value” | ❌ Low | Check FAILOPT configuration for the affected channel | Confirm intended behavior, not a defect |
| Relay IOTA channel won’t switch load | Contact life exceeded or wrong NO/NC jumper setting | ❌ Low | Check jumper position (Form A vs. Form B) and inspect contacts | Reposition jumper or replace relay — usually not the IOM |
If the issue persists after ruling out field-side shorts and load distribution, send the diagnostic buffer readout and per-channel current measurements to support for faster root-cause turnaround.
Frequently Asked Questions (FAQ)
Is the CC-PDOB01 hot-swappable?
No. De-energize the IOTA slot before removing or inserting the IOM. Live insertion isn’t rated on this platform.
What happens to my outputs if the module fails?
Depends on the FAILOPT setting, configured per channel — hold the last commanded state or shed to a user-defined safe value. Worth confirming this is set correctly on anything driving a critical solenoid or interlock.
Can this module drive a relay output instead of straight 24VDC?
Yes — mount the same CC-PDOB01 IOM on the CC-TDOR01 (non-redundant) or CC-TDOR11 (redundant) Relay IOTA instead of the standard bussed DO IOTA, and you get 32 isolated Form A/B dry contacts rated to 3A at 125/250VAC resistive.
How does the short-circuit protection actually work?
It’s fuse-less — a shorted channel is detected and de-energized automatically, no blown fuse to replace. The channel comes back on its own once the field short clears. Group current is still limited though (down to 1.5A per 8-channel group under a two-short condition), so a stacked fault across a group will pull down more than one channel.
Will swapping this module wipe my output configuration?
No. Channel assignment, FAILOPT settings, and safe values live in the Experion Control Builder database, not on the IOM. The controller re-downloads configuration on replacement.
Why is this cheaper than a factory-direct quote?
This is a New Surplus/New Original unit — factory-sealed, serial-verified, never field-installed — sourced outside Honeywell’s direct channel. You skip the OEM markup and lead time; our test report and warranty stand in for the factory warranty.
What’s tested before this ships?
Power-on self-test, I/O Link communication handshake, full 32-channel output simulation including short-circuit protection response, and insulation resistance testing. Test photos/videos available on request.
