Product Summary
The Allen-Bradley 1794-IM16 delivers sixteen digital inputs for the Flex I/O platform. It operates with a nominal on-state voltage of 240 VAC across a range of 159 to 264 VAC. This module consumes only 11 mA per input at 240 VAC. Its non-isolated design simplifies system integration for control engineers.
Expert Technical Evaluation & Performance Review
Robust Electrical Design for High-Voltage AC Inputs
The 1794-IM16 uses a nominal input impedance of 22.2 kilohms to manage current draw effectively. Each input channel requires just 11 mA at the rated 240 VAC level. This design keeps power dissipation low at a maximum of 6 watts. The module’s thermal dissipation measures only 20.47 BTU/hr at 264 VAC. These figures ensure the unit runs cool inside a crowded cabinet.
Wide Operating Range and Environmental Tolerances
This module supports an input voltage range from 159 to 264 VAC. Such a wide window handles line fluctuations without false triggering. The operating temperature spans from 0 to 55 degrees Celsius. This range allows deployment in unconditioned plant floor environments. Engineers can rely on stable performance across diverse industrial settings.
Compact Mechanical Footprint for Flexible Mounting
The 1794-IM16 measures just 94 mm tall, 94 mm wide, and 91 mm deep. Its total weight is only 141 grams, or about 4.97 ounces. This compact size saves valuable space within an enclosure. The module integrates easily into existing Flex I/O racks without extra hardware. Its lightweight build reduces strain on the mounting base.
FlexBus Communication and Power Requirements
The module draws 32 mA at 5 VDC from the FlexBus backplane. This low current requirement preserves power for other system components. The FlexBus interface ensures reliable data transfer to the controller. Engineers can install multiple modules without overloading the backplane supply. This efficiency supports dense I/O configurations in large systems.
Non-Isolated Input Topology for Streamlined Wiring
The non-isolated input design reduces component count and wiring complexity. This topology works well for applications with a common ground reference. Installation requires fewer termination points than isolated alternatives. The straightforward layout cuts down on commissioning time significantly. Maintenance crews can troubleshoot connections with minimal effort.
Logistics & Standard Packaging Details
The module ships in an anti-static protective bag to prevent ESD damage.
A rigid cardboard box surrounds the bag for physical protection.
The package includes a single Allen-Bradley 1794-IM16 Flex I/O module.
No mounting base or terminal block is included in this standard package.
Express delivery shipping is available via FedEx, UPS, and DHL.
