Overview
Configured for discrete field signal acquisition in a Honeywell DCS I/O architecture, the Honeywell CC-TDIL11 51308388-175 (CC-TDIL11 Digital Input Module) provides 32 digital input channels with galvanic isolation and optical isolation within the IOM. The module accepts 18 to 30 VDC field power and detects input states using defined voltage and current thresholds.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | CC-TDIL11 51308388-175 |
| Spare Model | 51308388-175 |
| Brand | Honeywell |
| Product Type | Digital Input Module |
| Product Parameters | Digital Input Module |
| Origin | USA |
| Place of Shipment | Xiamen, China |
| Weight | 0.46 kg |
| Dimensions | 29.4 x 12 x 6.5 cm estimated shipping size |
| Input Channels | 32 |
| DI Power Voltage Range | 18 to 30 VDC |
| ON Sense Voltage | 13 VDC minimum |
| ON Sense Current | 3 mA minimum |
| OFF Sense Voltage | 5 VDC maximum |
| OFF Sense Current | 1.2 mA maximum |
| Galvanic Isolation | 1500 VAC RMS or +/-1500 VD |
| Isolation Technique | Optical isolation in IOM |
| Open Wire Detection | Supported |
| Input Indication | Direct / Reverse input indication |
| Field Power | Non-incendive field power supply |
| Field Power Selection | Internal or external |
| Redundancy | Optional |
| Internal Diagnostics | Supported |
| Tariff Code | 8537101190 |
Honeywell Channel Isolation and Diagnostic Architecture
The CC-TDIL11 uses optical isolation within the IOM to separate field input circuitry from internal module circuitry. The specified galvanic isolation reaches 1500 VAC RMS or +/-1500 VD.
The module provides 32 digital input channels and monitors each input against defined ON and OFF thresholds. Therefore, field devices must produce signal levels within the specified detection ranges.
The module also supports open wire detection and direct / reverse input indication. In addition, internal diagnostics monitor module data integrity and identify abnormal input conditions.
Optional redundancy allows the module to operate within configurations that require duplicated I/O hardware. However, the supplied specifications do not define redundancy switching time or specific redundancy architecture.
Frequently Asked Questions (FAQ)
Q: How many digital input channels does the CC-TDIL11 provide?
A: The CC-TDIL11 provides 32 digital input channels.
Q: What field voltage range does the module accept?
A: The specified DI power voltage range is 18 to 30 VDC. The ON threshold is 13 VDC minimum, while the OFF threshold is 5 VDC maximum.
Q: Does the module provide electrical isolation between field signals and internal circuitry?
A: Yes. The module uses optical isolation in the IOM and specifies galvanic isolation of 1500 VAC RMS or +/-1500 VD.
Field Installation Guidelines
- Verify the module model and spare model before installation.
- Confirm that the field supply remains within the specified 18 to 30 VDC range.
- Check field device ON and OFF signal levels against the specified input thresholds.
- Use appropriate separation between digital input wiring and high-voltage or high-current conductors.
- Route signal wiring to minimize electromagnetic coupling from switching equipment and power cables.
- Connect cable shields according to the control system grounding design and site electrical standards.
- Inspect terminal connections before energizing the field circuit.
- Use the open wire detection function where the connected field circuit requires continuity monitoring.
- Select internal or external field power according to the installed I/O circuit design.
- Verify direct / reverse input indication during commissioning before placing the channel into service.
- Confirm diagnostic status after power-up and investigate abnormal channel indications before normal operation.
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