1791-16BC Allen-Bradley Block I/O Module

Allen-Bradley 1791-16BC Block I/O Module

Allen-Bradley

Allen-Bradley 1791-16BC Block I/O Module

SKU: 1791-16BC

In Stock

Dimensions: 11.2 x 9.7 x 17.5 cm
Country of origin: USA
Payment: T/T, Western Union
Shipping port: Xiamen

Categories : All Products, Allen-Bradley, I/O Modules & Signal Splitters

Tags : Allen-Bradley Block I/O, Allen-Bradley CompactLogix, Digital I/O Blocks

1 years warranty

Delivery time: 3-7 business days

Free 30 days return

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The Allen-Bradley 1791-16BC, also cataloged as the 1791-16BC Block I/O Module, operates as a dedicated hardware component for high-density digital signal interfacing within distributed I/O network platforms. The module provides 16 digital inputs organized into two groups of 8 and 16 digital outputs, executing logic state transitions based on a 10-30 VDC field power supply.

Hardware Specifications

Parameter	Specification
Model	1791-16BC
Brand	Allen-Bradley
Origin	USA
Weight	0.78 kg
Shipping Dimensions	11.2 x 9.7 x 17.5 cm
Operating Temp	Consult manufacturer derating charts
Power Consumption	10-30 VDC
Input Capacity	16 (2 groups of 8)
Output Signal Delay	0.5 ms (on) / 1.0 ms (off)
Off-state Current	2.5 mA (min) / 11.0 mA (max @ 30 V)
Input Impedance	3.4 k ohms

Deterministic Industrial Control Integration

The 1791-16BC architecture utilizes hardened circuit designs to ensure signal stability in high-noise environments. Integration within Allen-Bradley control ecosystems relies on deterministic fieldbus timing, ensuring that I/O density scaling does not impact cyclic update rates. Firmware compatibility across the 1791-16BC/B and 1791-16BC/C revisions maintains backward compatibility with legacy control systems while adhering to established input voltage thresholds.

Ordering Information

Includes: One (1) 1791-16BC I/O Block Module.
Note: This unit was discontinued by the manufacturer effective 06/30/2015.
Additional components: Requires external field connectors for I/O signal termination.

Field Installation Protocols

Mounting: Secure the block module to a vibration-dampened surface using the provided mounting holes to maintain structural integrity.
Grounding: Connect the chassis ground terminal to a common reference ground to prevent potential differences between the module and field devices.
Wiring: Ensure wire gauges are compliant with local electrical codes for 24 VDC operation; observe current ratings to prevent thermal accumulation.
Signal separation: Isolate input and output signal bundles from high-voltage AC cabling to minimize inductive noise injection.

Delivery Information

Delivery time: 2-7 days when payment finish.
Shipment: Transported via DHL/FEDEX/UPS.
Packaging: Utilization of anti-static industrial packaging to prevent electrostatic discharge and mechanical stress during transit.

Frequently Asked Questions

Q: Are the 16 inputs and 16 outputs isolated from each other?

A: The inputs are grouped into two sets of 8. Logic and field power isolation should be verified against the specific hardware revision (e.g., 1791-16BC/B).

Q: Can this module be used in hot-swap configurations?

A: No, this block I/O module does not support hot-swapping; power must be isolated from the unit before removing or installing the device.

Q: What is the maximum voltage ripple recommended for the 24 VDC supply?

A: To ensure reliable operation and prevent false triggering of inputs, keep the supply ripple within 5% of the nominal 24 VDC.

Shipping

Emergency Dispatch: Same-day shipping for in-stock orders placed before 2:00 PM (GMT+8).
Premium Carriers: Reliable global delivery via DHL, FedEx, and UPS to 150+ countries.
Flexible Options: We support shipping via your own carrier account (DHL/FedEx/UPS).
Industrial Packaging: Professional ESD protection and reinforced shock-absorbent packaging.

Returns

30-Day Window: Request a return within 30 days of receipt for eligible items.
Condition: Items must be in their original, factory-sealed condition with all tags.
Hassle-Free Process: Contact sales@maxwellplc.com for a return label and instructions.
Fast Refunds: Approved refunds are processed to your original payment method within 10 days.

Warranty

12-Month Guarantee: A comprehensive one-year warranty covers all functional defects.
Authenticity: Every part is guaranteed 100% original, brand-new, and genuine.
Expert Support: Dedicated technical assistance to verify and resolve any hardware issues.
Peace of Mind: Long-term reliability support for all your mission-critical automation parts.

Secure Payment

Flexible T/T: 100% T/T for stock items; 30% deposit / 70% balance for lead-time orders.
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