Overview
Manuals
IOTA and IOM
Input Range
Non-Redundant Fit
Features:
- Honeywell lists CC-TDI220 as the non-redundant nine-inch high-voltage DI IOTA.
- The cited input column is nominal 240 VAC with a 180–264 VAC RMS range.
- CC-PDIH01 electronics and redundant CC-TDI230 are separate model entries.
Honeywell's Series-C I/O Specification section 5.15 lists CC-TDI220 under the 240 VAC IOTA column for the CC-PDIH01 high-voltage digital input module. The IOTA is non-redundant and shown as nine inches. The table's IOTA-specific column states 180–264 VAC RMS input-power range, 1.11 mA RMS minimum ON sense current, 0.32 mA RMS maximum OFF sense current and 47–63 Hz frequency. It also states a 25 ms maximum absolute delay across the input filter and isolation for that configuration. These details should be interpreted with the specified IOM and field circuit, not as a general-purpose terminal board rating.
For replacement, check the complete CC-TDI220 physical marking and the website's additional 51308394-275 number against Honeywell parts records, because the reviewed PDF only maps the base model. Document the installed CC-PDIH01 IOM, non-redundant nine-inch IOTA position, actual AC input voltage, terminal assignments, field isolation and controller configuration. The table's 32 channels describe the matched IOM, not independent intelligence in the IOTA. CC-TDI230 is a separately listed redundant termination and should not be substituted without system design approval. Follow high-voltage safety and site change control; after authorized work, test each affected input and diagnostics before returning the assembly to service.
The CC-TDI220 51308394-275 Honeywell 240 VAC Digital Input IOTA may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell CC-TDI220 51308394-275 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 places CC-TDI220 in the IOTA-model row and CC-PDIH01 in the Input/Output Model row. This is a non-redundant nine-inch termination assembly, not an independent 32-channel I/O processor. Its role and the companion electronics both matter for a valid spare. The manufacturer table does not map 51308394-275, so compare the physical label and official parts record before claiming the extra number is confirmed.
The OEM 240 VAC IOTA column lists nominal 240 VAC, a 180–264 VAC RMS input-power range, 1.11 mA RMS minimum ON sense current, 0.32 mA RMS maximum OFF sense current and 47–63 Hz frequency. These values apply to the documented high-voltage DI configuration with CC-PDIH01. They are not universal limits for every Honeywell digital input module. Verify field voltage, terminals and circuit design before any replacement.
Honeywell lists CC-TDI220 as non-redundant and separately lists CC-TDI230 as the redundant high-voltage IOTA. A nine-inch physical arrangement and approved wiring should be checked against the installed cabinet. Do not substitute a redundant IOTA based solely on similar voltage or name. Record existing terminal mapping and diagnostics, follow applicable high-voltage isolation procedures, and test all affected inputs after authorized work.
