Schneider 140ACI03000 – Technical Overview
Product Type: Analog Current Input Module (ACI)
Series: Modicon (part of the Schneider Electric PLC family)
Module Code: 140ACI03000
General Description
The 140ACI03000 is a 3-channel analog input module designed for use with Schneider Electric PLCs, typically in the Modicon Quantum and Premium lines. It converts field analog signals (current) into digital signals that can be processed by the PLC for monitoring and control in industrial automation systems.
Key Features
- Input Channels: 3 analog current inputs
- Signal Type: 0–20 mA or 4–20 mA
- Resolution: 12-bit or 14-bit (depending on module revision)
- Isolation: Galvanic isolation between channels and between module and backplane
- Accuracy: ±0.1% of full scale (typical)
- Sampling Rate: 10 ms per channel (typical, may vary)
- Power Supply: Draws power from the PLC backplane (typically 5V DC)
- Temperature Range: –20°C to +60°C (operational)
- Mounting: DIN rail or backplane mounting within a PLC rack
- Communication: Uses standard PLC bus for data transfer
Applications
- Process monitoring (temperature, pressure, flow sensors with current output)
- Industrial automation control loops
- Signal acquisition for SCADA and HMI systems
- Integration with safety and control systems requiring precise current measurements
Advantages
- Reliable analog input for high-precision measurements
- Compact form factor for dense PLC racks
- Compatible with a wide range of Schneider Electric PLCs
- Supports galvanic isolation to protect sensitive electronics
Typical Configuration
- Connected to field devices outputting 4–20 mA signals
- Installed in the PLC rack adjacent to digital and other analog modules
- Programmed using Schneider Electric’s Unity Pro / EcoStruxure Control Expert software
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