Allen-Bradley 1771-IG TTL Input Module PLC 5 8 Inputs 5V DC

Allen-Bradley 1771-IG TTL Input Module

Product Overview

Allen-Bradley 1771-IG is a TTL digital DC input module for the PLC 5 series. Features 8 inputs with 5 V DC TTL voltage category. Operating voltage 5.0 to 5.3 V DC. Signal delay less than 1 ms ON. Uses 1771-WC wiring arm. Conformal coat protection. Module weight 0.5 kg.

Technical Specifications

Key Features

• 8 TTL compatible inputs at 5 V DC
• Signal delay less than 1 ms ON
• Optoelectrical isolation for transient protection
• Input filtering for electrical noise reduction
• 8 front panel status indicators
• Conformal coat protection
• Supports ½, 1 and 2 slot I O addressing
• Used for TTL interfaces and BCD encoder applications

Installation Notes

• Requires 2 power sources: backplane and user supplied 5 V DC
• Keying bands between pins 34 and 36 upper connector
• Keying bands between pins 4 and 6 lower connector
• Wiring arm 1771-WC allows module replacement without rewiring

FAQs

Q1: What is the voltage category and number of inputs?
A1: 5 V DC TTL category. 8 inputs with operating voltage 5.0 to 5.3 V DC.

Q2: What is the backplane current and wiring arm?
A2: 122 mA backplane current. Compatible with 1771-WC wiring arm.

Q3: What is the module weight?
A3: 0.5 kg.