Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product type | Digital Input IOTA (terminal board) |
| Platform | Honeywell Experion C-Series / C300 I/O |
| Channels | 32 digital inputs |
| Signal level | 24 V DC |
| Redundancy | Non-redundant |
| Typical mating module | CC-PDIL01 32-ch 24 V DC DI module |
| Redundant alternative | CC-TDIL11 |
| Typical module power | ~4.2 W |
| Typical module current | ~0.19 A |
| Typical per-channel power | ~0.132 W |
| Isolation rating | 2,500 V |
| Operating temperature | -40 °C to +70 °C |
| Humidity | 5–95% non-condensing |
| Standards reference | DIN 3204 |
Product Introduction
Replacing a DI IOTA looks simple until you discover the field wiring is tied to a specific terminal layout. The CC-TDIL01 sits at that junction. It is the non-redundant 32-channel 24 V DC digital input terminal board for Honeywell C-Series I/O, and it carries the field wiring while the CC-PDIL01 module handles logic-side processing.
This board is useful when you need a clean, documented replacement for an existing non-redundant DI point group. With 32 channels, ~4.2 W module power, and a 2,500 V isolation rating, it fits typical discrete status monitoring duties such as valve position switches, relay contacts, and permissive signals. It is not a redundant IOTA. If the loop requires dual-path availability, CC-TDIL11 is the correct counterpart.
QA/QC Transparency SOP
- Intake & Origin Verification: Confirm model CC-TDIL01, Honeywell part reference if present, revision, and serial number. Inspect for bent pins, cracked terminal blocks, corrosion, or heat discoloration.
- Live Functional Testing: Mount the IOTA on a compatible C-Series test rack. Install a known-good CC-PDIL01 module. Apply 24 V DC and verify LED indicators, terminal continuity, and module communication.
- Electrical Parameter Tests: Measure 24 V DC supply current and compare against the ~0.19 A / ~4.2 W reference. Check terminal-to-terminal continuity and isolation paths with a multimeter. Reject boards with shorted rails or damaged insulation.
- Firmware/Config Verification: Read module identity and diagnostic status from the paired CC-PDIL01. The IOTA itself does not carry user firmware, but the mating module revision must match the cabinet design.
- Final QC & Anti-Static Packaging: Record test results, photograph the nameplate and terminals, and pack in ESD-safe material with terminal protection caps.
Field Engineer Gotchas
- Wrong IOTA revision: CC-TDIL01 is non-redundant. Installing it where CC-TDIL11 was specified removes redundancy. Check the cabinet drawing first.
- Module mismatch: CC-TDIL01 pairs with CC-PDIL01. It does not replace DO, AI, AO, or SOE IOTAs. Forcing the wrong module will not fix a channel fault.
- Terminal block damage: The two-level removable terminals are the most common failure point. A cracked terminal block can cause intermittent channel readings even if the module is healthy.
- Field power wiring errors: The IOTA routes 24 V DC field power. Reversed polarity or a shared ground mistake can knock out an entire channel group. Verify field supply before energizing.
- Assuming isolation fixes ground loops: The 2,500 V isolation rating is not a blanket cure for poor grounding. If multiple cabinets share inconsistent 24 V DC references, you will still see noise or false trips.
Honeywell CC-TDIL01
Application Scenarios
- Refinery pump permissive monitoring: Collects suction pressure switch, discharge valve position, and seal failure signals for C300 interlocks.
- Chemical batch reactor: Reads agitator running, jacket valve open, and door interlock status during recipe execution.
- Power plant auxiliary systems: Monitors lube oil pressure switches, cooling fan status, and breaker auxiliary contacts.
- Water treatment plant: Accepts level switch, pump run feedback, and valve limit switch signals from remote MCCs.
FAQ
Is CC-TDIL01 the DI module itself?
No. It is the IOTA terminal board. The DI module is typically CC-.
No. Use CC-TDIL11 for redundant 32-ch 24 V DC digital input.
What module plugs into it?
CC- 32-ch 24 V DC digital input module.
Does it support HART or analog signals?
No. It is for 24 V DC discrete inputs only.
What is its power draw?
Approximately 4.2 W / 0.19 A for the module assembly, with about 0.132 W per channel.
Is it hot-swappable?
C-Series I/O supports modular replacement, but any live work must follow site procedures, OEM guidance, and loop impact checks.
How do I confirm compatibility before buying?
Check the cabinet BOM, IOTA position, mating CC- module, revision, and terminal block condition. Match them to the installed configuration.
