Allen Bradley 1746SC-INI4VI Isolated Analog Input Module

Product Introduction

The Allen Bradley 1746SC-INI4VI is an isolated analog input module designed for the SLC 500 PLC series. It provides 4 isolated analog inputs capable of measuring both voltage and current signals with high precision.

Engineered for industrial automation, the module ensures accurate acquisition of process signals while isolating each input to prevent interference and protect the PLC from electrical noise. Its compact, rack-mounted design allows efficient installation in control cabinets and seamless integration into modular PLC systems.

The 1746SC-INI4VI is commonly used in applications where precise analog monitoring, signal isolation, and reliable data conversion are critical for process control and industrial automation.

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Product Specifications

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Applications

• SLC 500 PLC systems requiring precise analog signal acquisition

• Industrial automation environments where isolated voltage/current inputs prevent noise interference

• Process control systems for temperature, pressure, flow, or other sensor monitoring

• Rack-mounted PLC configurations for modular and expandable control systems

• Industrial instrumentation needing high-resolution analog input conversion

• Automation systems requiring reliable data acquisition from field analog devices

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Advantages

• Electrically isolated inputs protecting the PLC and improving signal integrity

• High-resolution 16-bit conversion ensuring accurate analog measurements

• Multiple input ranges supporting flexible voltage and current signals

• Compact rack-mounted design for efficient cabinet installation

• Continuous reliable operation in harsh industrial environments

• Seamless integration with SLC 500 series and modular I/O architecture

FAQ

1. How many analog input points does this module provide?
   It provides 4 isolated analog inputs.

2. What types of signals can it measure?
   It supports both voltage (0–10 VDC, ±10 VDC, 0–5 VDC, 1–5 VDC) and current (0–20 mA, 4–20 mA) signals.

3. Is each input electrically isolated?
   Yes, all inputs are electrically isolated to protect the system from noise and surges.

4. What is the resolution of the analog inputs?
   The module provides 16-bit resolution for precise measurements.

5. Can it be mounted in a standard PLC rack?
   Yes, it is designed for rack-mounted installation.

6. Is it compatible with SLC 500 PLC systems?
   Yes, it is fully compatible with SLC 500 chassis and modules.

7. What is the maximum input current?
   The module draws 570 mA at 5 V supply.

8. Can this module be used in process control applications?
   Yes, it is widely used for temperature, pressure, and flow sensor monitoring.

9. Does it prevent interference from other field devices?
   Yes, electrical isolation ensures signal integrity.

10. Can it be expanded with additional analog input modules?
    Yes, its modular design allows expansion within SLC 500 systems.

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