Allen-Bradley 1769SC-IF4IH Analog Current/Voltage Input Module

Overview

The Allen-Bradley 1769SC-IF4IH is a 4-channel analog current/voltage input module designed to provide full analog input capabilities, combined with the HART (Highway Addressable Remote Transducer) protocol. This module offers the ability to gather real-time data from process instruments and facilitates the operation of a smart network—all without requiring additional wiring. By integrating both HART communication and standard analog inputs into a single module, the 1769SC-IF4IH significantly reduces system costs and simplifies commissioning, operation, and maintenance.

Key Features

• 4 Channels of isolated analog input, with full HART protocol support.
• HART Master functionality, allowing communication with HART field devices.
• Read/Write HART Capability for complete control.
• Passthrough Messaging Capability for seamless communication.
• Analog Data & HART Data including PV (Process Variable), SV (Span Value), TV (Tag Value), and FV (Field Variable).
• High Isolation: 710 VDC channel-to-channel and 710 VDC field-wiring-to-backplane isolation.
• Advanced Features: Five selectable filter frequencies for each channel.

Specifications

Input Types

• Analog Inputs: 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, 0-10 V, ±10 V (with HART protocol support).
• Channels: 4 channels of isolated analog input and HART.

Resolution

• 16-bit resolution across all ranges.

HART Dynamic Variables

• PV (Process Variable)
• SV (Span Value)
• TV (Tag Value)
• FV (Field Variable)

Update Times

• 18 to 488 ms for all channels.
• 6 seconds for HART communication.

Electrical Isolation

• 710 VDC field-wiring-to-backplane isolation.
• 500 VDC field-wiring-to-chassis-ground isolation.
• 710 VDC channel-to-channel isolation.

Input Impedance

• >220 Kohm for voltage.
• <250 ohm for current.

Protection

• Overvoltage Protection: 24 VDC for voltage, 7 VDC for current.

Backplane Current Required

• 125 mA at 5 V max.
• 60 mA at 24 V max.

Common Mode Rejection

• 60 dB at 60 Hz.

Normal Mode Rejection

• 50 dB at 50/60 Hz.

Environmental Conditions

• Operational Temperature: 0°C to 60°C (32°F to 140°F)
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Relative Humidity: 5% – 95% (non-condensing)

Thermal Dissipation

• 1.00 Watt maximum.

Accuracy

• Voltage: ±0.2% of range.
• Current: ±0.35% of range.

Certifications

• UL/cUL Listed
• ANSI ISA 12.12.01 (Class I, Div 2, Groups ABCD)
• CE Certified

Terminal Base

• 18-position terminal base.

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