Honeywell 621-1180R is a 32-point discrete input module supporting 115 VAC and 24 VDC signals. The R suffix allows removal or insertion while the rack remains powered. It features grouped commons and industrial-grade noise immunity.
Technical Specs
Points: 32 discrete inputs
Voltage range: 80–140 VAC / VDC
Nominal: 115 VAC (also supports 24 VDC sink)
Current: 4–15 mA typical
Points per common: 16
Suffix: R = removable under power
System: Honeywell IPC / 620-9000 series
Key Features
High-density 32-point digital inputs
Supports both AC and DC field signals
Hot-swappable design
Grouped commons for efficient wiring
FAQ
Points? 32.
Voltage? 80–140 VAC/VDC.
Hot-swap? Yes.
Installation Guide
Install the module in the I/O chassis.
Wire field inputs and commons according to the grouping.
For ungrounded AC systems, connect the additional L1 reference if required.
Power up and verify input status LEDs.
Test each point with live signals.
Selection Tips
Choose for high-density AC or mixed AC/DC digital inputs.
Confirm common grouping matches the field wiring plan.
