621-1160

The Honeywell 621‑1160 is a robust industrial 16‑point digital input module engineered for reliable field signal acquisition in automated control systems. Designed to integrate seamlessly into Honeywell PLC racks and backplane architectures (such as UCN, IPC, and related platforms), this module facilitates efficient conversion of discrete AC/DC input signals into usable logic for PLC processing.

With wide industrial compatibility and rugged construction, the 621‑1160 is suited for both legacy systems and modern automation panels where compact form, dependable performance, and easy integration are critical.

Technical Specifications

Specification Item	Details
Model	621‑1160
Module Type	AC/DC Digital Input Module
Input Channels	16 discrete points
Input Voltage Range	115 VAC / 24 VDC compatible
Input Type	AC/DC digital
Signal Conditioning	TTL/logic conversion
Isolation	Backplane/system level
Operating Temperature	–20 °C to +70 °C
Storage Temperature	–40 °C to +85 °C
Humidity	5 % – 95 % non‑condensing
Mounting	Rack / Backplane Modular
Dimensions (W × H × D)	76 mm × 241 mm × 175 mm
Weight	≈ 0.32 kg
System Compatibility	Honeywell UCN / IPC / Modular PLC

All dimensions and weights are typical values for this module class.

Recommended Related Models

Honeywell 621‑1100 – 8‑point digital input module
Honeywell 621‑1151 – 16‑point digital input module
Honeywell 621‑1161 – Alternate AC/DC input variant
Honeywell 621‑0022‑RC – Isolated analog input module
Honeywell 621‑0025 – RTD analog input module

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Industrial Applications

The 621‑1160 module is suitable for a wide range of industrial automation scenarios requiring reliable discrete signal monitoring:

Field signal acquisition from sensors, switches, and contactors
PLC panel input scanning and logic interfacing
Machine control and safety interlocks
Process plant discrete monitoring
Legacy system upgrades and control retrofits

Advantages

High‑Density Discrete Input Support
Sixteen input channels enable greater field coverage with fewer modules.
Dual AC/DC Compatibility
Supports both 115 VAC and 24 VDC input sources for flexible field interfacing.
Rugged Industrial Build
Designed for stable operation in harsh environments with noise and vibration.
Seamless PLC Integration
Works with Honeywell modular PLC backplane systems for straightforward deployment.
Compact Modular Form
Efficient use of panel space without sacrificing performance.

Technical FAQs

1. What signals can the 621‑1160 module read?
It reads both AC and DC discrete digital input signals (115 VAC and 24 VDC compatible).

2. How many input channels does it support?
It supports 16 discrete input points.

3. Is electrical isolation provided?
Signal isolation is managed at the system/backplane level rather than by the module itself.

4. What environments is it built for?
Industrial settings with standard temperature and humidity variations.

5. Does it integrate with legacy Honeywell systems?
Yes — compatible with UCN, IPC, and modular PLC racks.

6. What is the typical operating temperature range?
–20 °C to +70 °C, making it suitable for many control panels.

7. Does it require configuration software?
No — it operates as a hardware I/O interface without programmable settings.

8. How is the module powered?
Power is supplied via the system backplane.

9. Is this module still manufactured new?
It may be available as new surplus or refurbished by industrial parts suppliers.

10. Does it include LED status indicators?
Module variants may include LED indicators for field input status.

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Honeywell DCS

Honeywell 621‑1160 16‑Point AC/DC Digital Input Module for Industrial PLC and Control Systems