Overview
Manuals
Module Identity
IOTA Voltage Match
Isolation and Redundancy
Features:
- Honeywell identifies CC-PDIH01 as a 32-channel high-voltage digital input IOM.
- The same electronics module uses different IOTAs for different input-voltage configurations.
- The OEM table specifies optical and field-to-logic isolation, with optional redundancy except proximity IOTA.
Honeywell's Experion Series-C I/O Specification section 5.15 names CC-PDIH01 Digital Input High Voltage and lists 32 channels. The module uses optical isolation, with 1500 VAC RMS or ±1500 VDC field-to-logic isolation in the table. Its electronics can serve different high-voltage discrete-input arrangements only when matched to the corresponding IOTA. The document separates non-redundant CC-TDI110, CC-TDI151 and CC-TDI220 from redundant CC-TDI120 and CC-TDI230 terminations. Field voltage and detailed sense thresholds are IOTA-specific, so they must not be generalized as one CC-PDIH01-only rating.
For a replacement, record the full physical label including the additional 51405041-176 number, since the reviewed Honeywell PDF names CC-PDIH01 but does not map the extra marking. Identify the installed IOTA, nominal field voltage, channel assignments, polarity or AC wiring, isolation arrangement, redundancy and Experion release. Follow the voltage-appropriate manufacturer and site isolation procedure before work. After authorized installation, verify diagnostics and each affected input, including the intended direct/reverse behavior and redundancy where fitted. Do not insert a 120 VAC proximity configuration into a redundant assumption; Honeywell explicitly excludes CC-TDI151 from the optional redundancy note.
The CC-PDIH01 51405041-176 Honeywell High-Voltage Digital Input Module may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell CC-PDIH01 51405041-176 official technical documentation and product links.
This multi-page Honeywell technical document contains the exact model and its technical data. Apply the values to the supplied type number and verify its revision before installation.
Honeywell's Series-C specification names CC-PDIH01 as a high-voltage digital input IOM with 32 channels. It is the electronics module, not the field-wiring IOTA. The manufacturer's reviewed PDF does not map the additional 51405041-176 number, so compare the supplied label and an authoritative parts record. Confirm controller release and revision compatibility before approving a spare, especially in a high-voltage field installation.
The OEM table uses different IOTAs for 120 VAC or 125 VDC, 120 VAC proximity, and higher-voltage AC input. CC-TDI110 and CC-TDI120 form the lower-voltage standard pair, CC-TDI151 serves the proximity case, and CC-TDI220/CC-TDI230 serve the higher-voltage AC case. Detailed ranges and thresholds belong to the IOTA column. Verify the exact field circuit and installed IOTA rather than assigning one voltage to every CC-PDIH01 installation.
Honeywell lists optical isolation and 1500 VAC RMS or ±1500 VDC field-to-logic isolation for CC-PDIH01. It describes extensive diagnostics, direct/reverse input and optional redundancy, with an explicit exception for CC-TDI151. A single IOM is not a redundant assembly. Follow the applicable high-voltage safety procedure and confirm both the electronics and termination selection before work, then test every affected discrete input and the configured redundancy path.
