Description

Schneider Electric 140ACI04000 Modicon Quantum Analog Input Module

The Schneider Electric 140ACI04000 (140ACI04000 Analog Input Module) serves as the primary Modicon Quantum analog input module utilized to execute multi-channel current signal acquisition across Modicon Quantum backplane architectures.

Configured for 16-channel differential current measurement in Modicon Quantum I/O systems, the Schneider Electric 140ACI04000 provides direct electrical acquisition of 4-20 mA, 0-20 mA, and 0-25 mA process signals with multi-range digital conversion and backplane data transfer execution.

Suffix Breakdown & Model Matrix

No structured suffix decomposition is defined for 140ACI04000 within the provided technical dataset. The identifier is treated as a fixed orderable part number.

Hardware Specifications

Parameter	Specification
ModelBrand	Schneider Electric 140ACI04000
Weight	0.3 kg
PowerConsumption	5 W
Analog Input Channels	16 differential inputs
Input Signal Types	4-20 mA, 0-20 mA, 0-25 mA
Resolution	Up to 16000 / 20000 / 25000 counts (range dependent)
Input Impedance	250 Ohm
Update Time	15 ms
Isolation	1780 V AC channel-to-bus for 60 s
Bus Current Requirement	360 mA
Filter Type	Single pole low pass, 3 dB at 34 Hz +/- 25 %

PLC Backplane Communication and IO Density Scaling

The 140ACI04000 integrates into Modicon Quantum backplane structures where deterministic IO scan behavior is governed by slot-based cyclic bus arbitration. IO density scaling is managed through fixed 17-word addressing per module, enabling predictable memory mapping across Quantum racks.

Backplane transaction timing is synchronized with firmware-level cyclic scheduling, supporting stable analog sampling intervals (15 ms update class). Firmware flash compatibility is maintained through Quantum platform revision alignment, ensuring consistent module enumeration during hot replacement events within supported system configurations.

Frequently Asked Questions

Q: Does the module support hot-swap insertion in a powered Quantum rack?
A: The module supports rack insertion under Quantum backplane rules; proper slot initialization and bus rescan are required to avoid channel state invalidation.

Q: What limits the measurement accuracy at higher ambient temperature drift?
A: Accuracy drift is defined as up to +/- 0.0025 % of full scale per degC, dominated by internal reference scaling and input stage thermal variation.

Q: How is channel isolation implemented?
A: Each module provides 1780 V AC isolation between input channels and backplane bus for 60 seconds, ensuring separation of field wiring and logic domain.

Field Installation Guidelines

Ensure all 4-20 mA loops are wired using twisted shielded pairs with shield termination at a single earth reference point. Maintain correct polarity across differential input terminals to avoid saturation of the 250 Ohm input impedance stage.

Backplane seating must be fully engaged to ensure stable 360 mA bus current distribution. Avoid routing high-voltage conductors parallel to analog input wiring to reduce induced coupling into low-level current loops.

Verify module addressing allocation (17 input words) within Quantum configuration software prior to commissioning to prevent register overlap across adjacent I/O modules.

Specifications

• Brand: Schneider Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems