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Allen-Bradley CompactLogix 5370 L2 1769-L24ER-QBFC1B 750 KB DI/O AI/O Controller | Original New

Allen-Bradley CompactLogix 5370 L2 1769-L24ER-QBFC1B 750 KB DI/O AI/O Controller | Original New

ALLEN-BRADLEY | CompactLogix 5370 L2

1769-L24ER-QBFC1B

CompactLogix 750 KB DI/O AI/O Controller

KEY CONFIGURATION

LEAD TIME: In stock

WARRANTY: 1 year

Email Inquiry [email protected]

WhatsApp +86 18159889985

Appurtenance:

Overview
Technical Data
Inquiry
Features
Interfaces
Installation
Environment
FAQ
Recommend Models
Recommended Products

Official Identification

Allen-Bradley CompactLogix 5370 L2 1769-L24ER-QBFC1B. CompactLogix 5370 L2 controller with digital I/O, analog I/O and high-speed counters.

Exact Configuration

Engineering Reference

Dimensions: 140 x 118 x 105 mm (W x H x D). Approximate weight: 0.91 kg (2 lb). Series A; lifecycle status: Mature.

Official Documentation

Rockwell Automation product profile 1769-PP011A-EN-E, pages 1-2; the exact controller selection table is on page 2. Open official PDF

Technical Data

Complete model	1769-L24ER-QBFC1B
Product family	CompactLogix 5370 L2
Product type	L2 controller with digital I/O, analog I/O and high-speed counters
Dimensions	140 x 118 x 105 mm (W x H x D)
Weight	0.91 kg (2 lb) approximate
Supply voltage	Embedded 24 V DC input power supply
User memory	750 KB
Local expansion	Up to 4 1769 Compact I/O modules
Embedded digital inputs	16 DC inputs
Embedded digital outputs	16 DC outputs
Universal analog inputs	4 channels
Analog outputs	2 channels
High-speed counters	4 channels
Ethernet interfaces	2 EtherNet/IP ports with Device Level Ring capability
EtherNet/IP nodes	8
TCP connections	120
USB interface	1 port
Removable storage	1 GB SD card supplied; supports up to 2 GB
Integrated motion	Not included
Series	A
Lifecycle status	Mature
Certifications	ABS; UL Listed; China CCC; CE; IECEx; UL Listed Hazardous Locations; ATEX; Australian RCM; Korean KC; UKCA; UKEX; Morocco Declaration of Conformity

Inquiry

CONTACT

STELLA

Email Inquiry [email protected]

WhatsApp +86 18159889985

Features

Mixed-I/O Controller

Combines 750 KB controller memory with digital, analog and high-speed counter channels in a single L2 unit. This exact QBFC1B configuration is intended for mixed machine-signal applications.

Embedded Digital I/O

Provides 16 DC inputs and 16 DC outputs for discrete devices. Channel wiring and output load protection must be checked against the connected field equipment.

Analog and Counter Functions

Includes four universal analog inputs, two analog outputs and four high-speed counters. Signal type, scaling, grounding and counter requirements should be defined before purchase.

Local Expansion and Storage

Supports up to four 1769 Compact I/O modules and ships with a 1 GB SD card. The SD interface supports controlled application backup and transfer.

Interfaces

EtherNet/IP Network

Two DLR-capable Ethernet ports support controller and I/O communications. The controller supports eight EtherNet/IP nodes and 120 TCP connections.

Digital Channels

Sixteen DC inputs and sixteen DC outputs provide direct discrete signal connectivity. Confirm voltage category, commons and load current for every field circuit.

Analog Channels

Four universal analog inputs and two analog outputs support process and machine signals. Input mode, output range, shielding and field-device compatibility require project-specific verification.

Counters, USB and SD

Four high-speed counters support fast pulse signals; one USB port supports service access and the SD slot supports removable program media. These interfaces distinguish the QBFC1B hardware.

Installation

Panel Envelope

Allow for the 140 x 118 x 105 mm controller, wiring access and up to four adjacent Compact I/O modules. The QBFC1B enclosure is wider than the digital-only QB1B controller.

Power and Ground

Connect the embedded 24 V DC power input with appropriate protection and grounding. Calculate the full system power demand including I/O loads and local expansion.

Signal Segregation

Route analog and high-speed counter wiring away from noisy power conductors. Apply shielding, grounding and common-reference practices suitable for the selected signal types.

Commissioning Sequence

Verify Series A, 750 KB memory, all digital and analog channel counts, four counters, the eight-node network limit and exact catalog label before downloading the project.

Environment

Enclosure Protection

Install the controller in a suitable industrial enclosure with protection against contamination and accidental contact. Provide access for service without stressing field wiring.

Thermal Planning

Maintain specified clearances and panel ventilation for the controller and expansion modules. Include dissipation from analog circuits, digital loads and nearby devices.

Noise Control

Use appropriate cable separation and shield termination for analog and high-speed signals. Network and low-level signal cables should be routed to minimize coupling from drives and motor conductors.

Certification Check

The official page lists ABS, UL, CCC, CE, IECEx, ATEX, RCM, KC, UKCA, UKEX and Morocco DoC approvals. Confirm the delivered markings satisfy the destination and application.

FAQ

Q1. How do I verify the exact 1769-L24ER-QBFC1B configuration?

A. Match the full catalog number, Series A, 750 KB memory, 16 DC inputs, 16 DC outputs, four universal analog inputs, two analog outputs, four high-speed counters and two DLR Ethernet ports.

Q2. How can new condition be distinguished from used or refurbished?

A. Request close-ups of the label, all digital and analog terminals, counter connections, Ethernet and USB ports, SD area and expansion connector. Terminal marks, missing covers, dust or repaired plastic can indicate prior service.

Q3. How can a buyer validate the supplier?

A. Check the legal company identity, registration, address, payment beneficiary and a written quotation for 1769-L24ER-QBFC1B. Require traceable photos and serial evidence connected to the quoted unit.

Q4. What should engineers confirm before ordering?

A. Review 140 x 118 x 105 mm dimensions, 0.91 kg weight, 24 V DC supply, 750 KB memory, every I/O channel type, four-module expansion, eight EtherNet/IP nodes and 120 TCP connections.

Q5. Which physical evidence should be requested before payment?

A. Obtain timestamped images or video of the exact label, Series A, digital and analog terminals, counter channels, both Ethernet ports, USB and SD interfaces, expansion connector and packaging.

Q6. Can 1769-L24ER-QB1B replace this QBFC1B model?

A. Not as a direct substitution when analog I/O or high-speed counters are used. QB1B lacks the four universal analog inputs, two analog outputs and four counters and also has a different enclosure width.

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