1769-IF4 Compact I/O 4-Channel Analog Voltage Current Input Module

The 1769-IF4 is a compact 4-channel analog input module designed for industrial measurement and monitoring applications requiring reliable voltage and current signal acquisition.

Unlike simple analog signal converters, this module supports multiple input ranges including ±10V, 0-10V, 0-5V, 1-5V voltage signals and 0-20mA or 4-20mA current signals. This flexibility allows integration with a wide range of industrial sensors and transmitters.

Each channel can be configured as differential or single-ended input, providing installation flexibility for different field wiring methods. The Delta-Sigma conversion technology and automatic calibration function help maintain stable measurement performance in industrial environments.

Key Features

• 4-channel analog voltage/current input
• Supports voltage and current signals
• Differential and single-ended input modes
• 14-bit analog resolution
• Delta-Sigma conversion technology
• Automatic channel calibration
• Supports 4-20mA industrial transmitters
• Compact DIN rail installation

Typical Applications

• Pressure monitoring systems
• Temperature transmitter acquisition
• Flow measurement equipment
• Position feedback systems
• Process automation equipment

Multi-Signal Input Capability

The main advantage of 1769-IF4 is its ability to handle multiple industrial analog signals.

Supported voltage ranges:

• ±10V DC
• 0-10V DC
• 0-5V DC
• 1-5V DC

Supported current ranges:

• 0-20mA
• 4-20mA

This allows the same module to be used across different sensor types without requiring separate input modules.

4-Channel Differential Input Design

The module provides four analog input channels.

Each channel can operate as:

• Differential input
• Single-ended input

Differential input mode improves signal stability by reducing the effect of electrical noise over longer cable distances.

Single-ended mode simplifies wiring for standard sensor connections.

14-Bit Measurement Resolution

The module provides up to:

14-bit unipolar resolution

14-bit plus sign bipolar resolution

This allows accurate conversion of analog field signals into digital control values.

Typical signals include:

• Pressure transmitters
• Temperature sensors
• Flow meters
• Linear position sensors

Delta-Sigma Conversion Technology

The Delta-Sigma converter design provides:

• Stable analog conversion
• Improved noise filtering
• Reliable measurement repeatability
• Industrial signal processing capability

This makes the module suitable for applications where consistent analog data acquisition is required.

Automatic Calibration Function

The module performs automatic calibration when:

• A channel is enabled
• Channel configuration changes

This helps reduce measurement drift and improves long-term stability.

Signal Noise Rejection

The module includes noise rejection capability for industrial environments.

Features include:

• Common-mode noise reduction
• Configurable filtering
• Stable signal conversion

Proper grounding, shielding and cable routing remain important for best analog performance.

1769-IF4 vs 1769-IF4I

1769-IF4

4-channel analog input

Voltage and current input

Standard non-isolated design

1769-IF4I

4-channel isolated analog input

Additional channel isolation

Suitable for electrically demanding environments

The IF4I version is preferred where signal isolation is required.

1769-IF4 vs 1769-IF8

1769-IF4

4 analog input channels

Lower channel density

Suitable for compact machines

1769-IF8

8 analog input channels

Higher measurement density

Suitable for systems requiring more sensors

The selection depends mainly on required input quantity.

1769-IF4 vs 1769-OF4

1769-IF4

Analog input module

Reads voltage/current signals from sensors

1769-OF4

Analog output module

Generates voltage/current control signals

They perform opposite signal directions and are not interchangeable.

Application Notes

Before installation, verify:

• Sensor output type
• Voltage or current signal range
• Differential or single-ended wiring
• Cable shielding method
• Required accuracy
• Controller compatibility
• Analog scaling parameters

Correct signal configuration is essential for accurate measurement.

Installation Notes

• Disconnect system power before wiring
• Confirm analog signal type
• Use shielded signal cables
• Separate analog wiring from power cables
• Configure correct input range
• Verify channel scaling
• Check grounding method
• Test each channel before operation

FAQ

Q1: How many analog channels does 1769-IF4 provide?

A1: It provides four analog input channels.

Q2: Does it support 4-20mA signals?

A2: Yes. It supports 0-20mA and 4-20mA current inputs.

Q3: What voltage ranges are supported?

A3: It supports ±10V, 0-10V, 0-5V and 1-5V DC inputs.

Q4: Is the input differential or single-ended?

A4: It supports both differential and single-ended input configurations.

Q5: What is the resolution?

A5: The maximum resolution is 14-bit.

Q6: What type of converter does it use?

A6: It uses Delta-Sigma conversion technology.

Q7: What sensors can connect to this module?

A7: It can connect to compatible pressure, temperature, flow and position transmitters.

Q8: What is the difference between 1769-IF4 and 1769-IF4I?

A8: IF4I adds channel isolation, while IF4 is the standard analog input version.