Allen-Bradley 1771-IFE PLC-5 Analog Input Module

SKU 1771-IFE

In stock

12-month warranty
Free returns within 30 days

Manufacturer: Allen-Bradley
Product No.: 1771-IFE
Country of origin:United States
Product Type: Analog Input Module
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 950g
Dimensions: 216 mm x 114 mm x 51 mm (H x W x D)
Shipping port: Xiamen
Warranty: 12 months

The Allen-Bradley 1771-IFE is an intelligent block transfer analog input module designed to interface analog input signals with Allen-Bradley programmable controllers that feature block transfer capability within the 1771 I/O structure. The 1771-IFE senses up to 16 single-ended or 8 differential analog inputs, converting input signals into proportional four-digit BCD or 12-bit binary values for transfer to the controller data table.

Features

Supports up to 16 single-ended or 8 differential analog inputs per module.
Per-channel program selectable input ranges for voltage and current.
Selectable data format including BCD, two's complement binary, and signed magnitude binary.
Programmable digital filtering to reduce process noise effects on input signals.
Selectable Real Time Sampling (RTS) for time-based control functions.
Software scaling to engineering units on an individual channel basis.
Internal configuration jumpers for selecting voltage or current mode.
Front panel green RUN and red FAULT status indicator lights.

Applications

Process control systems utilizing PLC-2, PLC-3, or PLC-5 processors.
Industrial monitoring of voltage and current loop transmitters.
Time-based process calculations such as PID control loops and totalization.

Technical Specifications

Parameter	Specification
Manufacturer	Allen-Bradley
Catalog Number	1771-IFE
Backplane Current	500mA at 5V DC
Number of Inputs	16 single-ended or 8 differential
Input Ranges (Voltage)	1 to 5V DC, 0 to 5V DC, -5 to +5V DC, -10 to +10V DC, 0 to 10V DC
Input Ranges (Current)	4 to 20mA, 0 to 20mA, -20 to +20mA
Resolution	12-bit binary or 4-digit BCD
Data Formats	BCD, Two's complement binary, Signed magnitude binary
Max Common Mode Voltage	+14.25V DC referenced to module common
Digital Filter Time Constant	0.00 to 0.99 seconds (BCD)
Real Time Sampling Period	100ms to 3.1s (in 100ms increments)
Wiring Arm	Cat. No. 1771-WG
Scan Time (8 Differential)	13.7ms (no scaling or digital filter)
Scan Time (16 Single-ended)	27.4ms (no scaling or digital filter)
Status Indicators	RUN (Green), FAULT (Red)

Connections/Interfaces

Single-Ended Input Wiring Assignments (1771-WG)

Connector Pin	Function
Pin 1	Channel 1 Input
Pin 2	Channel 2 Input
Pin 3	Channel 3 Input
Pin 4	Channel 4 Input
Pin 5	Module Common
Pin 6	Channel 5 Input
Pin 7	Channel 6 Input
Pin 8	Channel 7 Input
Pin 9	Channel 8 Input
Pin 10	Module Common
Pin 11	Channel 9 Input
Pin 12	Channel 10 Input
Pin 13	Channel 11 Input
Pin 14	Channel 12 Input
Pin 15	Module Common
Pin 16	Channel 13 Input
Pin 17	Channel 14 Input
Pin 18	Channel 15 Input
Pin 19	Channel 16 Input
Pin 20	Module Common
Pin 21	Module Common

Differential Input Wiring Assignments (1771-WG)

Connector Pin	Function
Pin 1	Channel 1+
Pin 2	Channel 1-
Pin 3	Channel 2+
Pin 4	Channel 2-
Pin 5	Not used
Pin 6	Channel 3+
Pin 7	Channel 3-
Pin 8	Channel 4+
Pin 9	Channel 4-
Pin 10	Not used
Pin 11	Channel 5+
Pin 12	Channel 5-
Pin 13	Channel 6+
Pin 14	Channel 6-
Pin 15	Not used
Pin 16	Channel 7+
Pin 17	Channel 7-
Pin 18	Channel 8+
Pin 19	Channel 8-
Pin 20	Module Common
Pin 21	Module Common

Installation Guidelines

Chassis Location: The module can be installed in any slot of a 1771 I/O chassis except the leftmost slot, which is reserved for the processor or adapter module.
Backplane Keying: Mount plastic keying bands on the backplane connector between pins 10 and 12, and between pins 24 and 26.
Shielding and Grounding: Use shielded cable (e.g., Belden 8761) and ground the foil shield and drain wire at the 1771 I/O chassis ground stud or mounting bolt only.
Wiring Arm: Connect field signal wiring using the 1771-WG Field Wiring Arm.
Unused Channels: Jumper unused channel inputs (+ and -) together and connect them to module common to minimize electrical noise.
Common Mode Voltage Limit: Ensure all analog input signals remain within +14.25V DC relative to module common to prevent channel crosstalk.

Compliance and Certifications

EMC Directive (89/336/EEC): EN 50081-2 Industrial Emission, EN 50082-2 Industrial Immunity.
Low Voltage Directive (73/23/EEC): EN 61131-2 Programmable Controllers.

FAQ

What is the Allen-Bradley 1771-IFE used for?

The Allen-Bradley 1771-IFE is a 12-bit analog input module used to interface analog voltage and current signals from field devices to Allen-Bradley programmable controller systems within a 1771 I/O chassis.

Which system does the module belong to?

The module belongs to the Allen-Bradley 1771 I/O system and communicates with PLC-2, PLC-3, and PLC-5 programmable controllers via block transfer.

How many input channels does the device support?

The device supports up to 16 single-ended or 8 differential analog input channels.

What power supply does the module require?

The module draws 500mA directly from the 1771 I/O chassis backplane power supply and does not require an external power source for internal operation.

How are hardware modes selected on the module?

Voltage or current input modes for each channel are selected using internal configuration plugs located on the circuit board.

View all FAQs →

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

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30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

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TECHNICAL SPECIFICATIONS

Color pattern	Black
Country of origin	United States
Power source	DC Power