Allen-Bradley 1769-IQ16 CompactLogix 16-Channel Discrete Input Module

Availability: 99 left in stock

Allen-Bradley 1769-IQ16 CompactLogix Discrete Input Module Configured for high-density discrete signal acquisition in CompactLogix and MicroLogix 1500 networks, the Allen-Bradley...

SKU: 1769-IQ16

Manufacturer: Allen Bradley
Product No.: 1769-IQ16
Product Type: Discrete Input Modules
Product Origin: USA
Payment:T/T, Western Union
Weight: 300g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Allen-Bradley 1769-IQ16 CompactLogix Discrete Input Module

Configured for high-density discrete signal acquisition in CompactLogix and MicroLogix 1500 networks, the Allen-Bradley 1769-IQ16 (1769-IQ16 Discrete Input Module) provides direct physical/electrical execution. The hardware monitoring interface scans and records binary states across 16 isolated channels, utilizing bipolar sink/source circuits to interface with field instruments including limit switches, proximity sensors, and push buttons. Operating directly within standard modular I/O banks, this hardware translates 24 VDC nominal field voltage transitions into logical bits transmitted across the system backplane.

Hardware Specifications

Parameter	Specification
Model	1769-IQ16
Brand	Allen-Bradley
Origin	United States
Weight	0.3 kg
Dimensions	1 Slot Width
Operating Temp	0 deg C to 60 deg C
Power Consumption	3.55 W maximum
Input Channels	16 discrete input points
Voltage Category	24 VDC nominal (Bipolar sink/source)
Operating Voltage Range	10 VDC to 30 VDC at 30 deg C
On-State Status	Minimum 10 VDC, minimum 2.0 mA
Off-State Status	Maximum 5 VDC, maximum 1.5 mA
Hardware Signal Delay	8.0 ms typical for both On and Off transitions
Backplane Current Draw	115 mA at 5.1 VDC
Isolation Voltage	75 VDC continuous isolation (verified at 600 VAC for 60 s)
Replacement Terminal Block	1769-RTBN18 (removable)

Industrial Control and Drive Technical Attributes

The module features optical isolation barriers that establish 75 VDC continuous circuit separation between the input terminal matrix and the internal logic processing components, effectively preventing high-voltage transients from migrating to the controller backplane. The internal logic execution balances local filtering latencies with system synchronization cycles, optimizing I/O density scaling across a single-slot form factor without generating excessive thermal loads. Circuit traces are matched to firmware flash compatibility standards, maintaining deterministic bus communication integrity during concurrent leg operations. The bipolar hardware structure permits sinking or sourcing field wiring topologies determined solely by the common return wiring configuration.

Frequently Asked Questions

Q: How does the module handle backplane power allocation during maximum channel activation?

A: The hardware draws a constant 115 mA at 5.1 VDC from the backplane power supply. Designers must calculate the aggregate current requirements of all expanded modules to ensure the total draw does not exceed the power supply capacity rating.

Q: Can this module be hot-swapped while the CompactLogix system backplane bus is actively processing data?

A: No, the 1769 modular platform does not support online hot-swap procedures. System power must be fully isolated and shut down before removing or inserting the module to prevent electrical damage to the backplane connections.

Q: What behavior occurs if an external field signal voltage drops into the 5 VDC to 10 VDC range?

A: Voltages between 5 VDC and 10 VDC fall into an indeterminate hardware threshold region. The channel may fail to register an On-state or could oscillate between states, necessitating strict adherence to the minimum 10 VDC On-state parameters.

Field Installation Guidelines

Field technicians must verify that all electrical connections follow industrial instrument wiring protocols. Field signals must use copper conductors routed through the removable 1769-RTBN18 terminal block, ensuring each screw terminal fastens firmly onto the wire ends. Maintain physical separation between low-voltage DC input loops and high-voltage AC distribution power lines to prevent electromagnetic coupling. Connect the system chassis ground bus directly to the master plant safety earth using a low-impedance path to maximize noise rejection. Slide the module chassis smoothly along the adjacent module guide rails until the bus connectors engage completely, then secure the integrated mechanical locking levers to clamp the units together. Prior to system power-up, confirm the common return line matches either the sinking or sourcing layout specified in the engineering documentation.

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