Allen-Bradley 1794-IB16 Flex I/O Input Module

Series#: AllenBradley

Product Details

1794-IB16 – Allen-Bradley FLEX I/O Digital Input Module, 16-point, 24V DC Sink/Source.
Compact, modular design for distributed I/O in industrial automation systems.
16 individually isolated input channels with high-speed response for reliable signal acquisition.
Supports sinking and sourcing input configurations, compatible with a wide range of sensors and switches.
Hot-swappable under power without disrupting system operation – minimizes downtime.
Robust isolation and transient protection ensures stable performance in harsh environments.
Guaranteed 100% Original factory condition, offering fast and secure worldwide delivery.

Specification

The Allen-Bradley 1794-IB16 is a high-performance 16-point digital input module belonging to the FLEX I/O family, designed for distributed control applications in demanding industrial environments. This module accepts 24V DC signals from both sinking and sourcing sensors, providing flexible integration into existing systems. The 1794-IB16 features individual channel isolation, fast scan times, and robust transient protection, making it ideal for discrete manufacturing, process control, and material handling. Its compact form factor allows for dense I/O configurations on a single backplane, reducing cabinet space and wiring complexity. With hot-swappable capability, the module can be replaced without powering down the entire system, ensuring maximum uptime. Backed by Rockwell Automation’s reliability standards, the 1794-IB16 is a trusted choice for critical automation tasks.

Parameter	Specification
Product Type	Digital Input Module
Series	FLEX I/O (1794)
Input Channels	16 (individually isolated)
Input Voltage Rating	24V DC (nominal)
Input Voltage Range	10–30V DC (including ripple)
Input Current (per channel, at 24V DC)	8 mA typical
Input Type	Sink (NPN) or Source (PNP) – field configurable
ON-State Voltage	≥ 10V DC
OFF-State Voltage	≤ 5V DC
ON-State Current	≥ 2 mA
OFF-State Current	≤ 1 mA
Input Delay (OFF to ON)	1 ms typical
Input Delay (ON to OFF)	1 ms typical
Isolation Voltage	1500V AC (channel-to-backplane, 1 minute)
Backplane Current Consumption (5V DC)	50 mA
Backplane Current Consumption (24V DC)	0 mA (powered by field side)
Power Dissipation	1.5 W typical
Thermal Dissipation	5.1 BTU/hr typical
Operating Temperature	0°C to +55°C (32°F to 131°F)
Storage Temperature	-40°C to +85°C (-40°F to 185°F)
Relative Humidity	5% to 95% non-condensing
Vibration Resistance	5 g Standard Models 10–500 Hz (operating)
Shock Resistance	30 g (11 ms duration)
Wiring	Removable terminal block (1794-TB3 or 1794-TB3S) – 16 AWG max
Indicators	Green LED per channel (ON state), module status LED (green/red)
Module Location	Any slot in 1794-A10, 1794-A17, or 1794-A20 chassis
Compatible Controllers	ControlLogix, CompactLogix, SLC 500 (via 1747-ACN15), PLC-5 (via 1771-ACN15)
Approvals	CE, UL 508, CSA C22.2 No. 142, ATEX (Zone 2), IECEx
Weight	Approx. 0.12 kg (0.26 lb)
Dimensions (H x W x D)	87 mm x 46 mm x 75 mm (3.4 in x 1.8 in x 3.0 in)
Warranty	Standard 1-year manufacturer warranty (extendable)
Shipping Method	Global express (DHL, FedEx, UPS) – typically 3–5 business days