
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | Schneider 140ACI05100SC (Spectrum Controls 140 ACI 051 00sc) |
| Manufacturer | Spectrum Controls for Schneider Electric (Alliance partner module) |
| Product Type | Analog Input Module, high-density |
| Platform | Modicon Quantum — all Quantum racks, standard Quantum ASIC and dual-port SRAM BIU |
| Number of Channels | 32 inputs, configured in groups of 8 channels per common |
| Input Ranges (Voltage) | -10 to +10 V, 0 to +10 V, +1 to +5 V, 0 to +5 V |
| Input Ranges (Current) | 0 to 20 mA, 4 to 20 mA |
| Input Impedance | 10 MΩ minimum (voltage mode); 350 Ω (current mode) |
| Data Formats | Signed 15-bit, Unsigned 16-bit, Unsigned 12-bit, 10,000-count DVM |
| Accuracy (Voltage) | ±0.03 % FS typical @ 25 °C; ±0.05 % FS max @ 0–60 °C |
| Accuracy (Current) | ±0.05 % FS typical @ 25 °C; ±0.10 % FS max @ 0–60 °C |
| Update Rate | Set by enabled channels and filter selection; 32 channels at 60 Hz filter ≈ 58 ms per channel, 1.856 s full cycle |
| Input Filtering | Selectable digital filter with programmable notch frequency |
| Multiplexing | 8 multiplexed input words, 4 groups of 8 channels; autosequence mode supported |
| Register Map | 9 input registers (3x) + 1 configuration/output register (4x) |
| LED Indication | 35 LEDs — Ready (green), Active (green), Fault (red, blink-coded), 32 channel status (green) |
| Backplane Current | 630 mA @ 5 V DC maximum, powered from Quantum backplane |
| Electrical Isolation | Input-to-backplane isolation; per-group common arrangement |
| Terminal Block | Standard 40-pin Quantum connector |
| Operating Temperature | 0 °C to +60 °C |
| Configuration Software | Concept, Modsoft, Unity Pro / EcoStruxure Control Expert |
Main Features and Advantages
Thirty-two channels in one slot, which changes the rack economics: The most compelling reason to specify the Schneider 140ACI05100SC is density. At four times the channel count of a standard Quantum analog card in the same single slot, it collapses what would be four modules, four terminal blocks and four sets of field wiring into one position. On a large water-treatment or district-energy project with hundreds of analog points, that reduces backplane count, cabinet width, marshalling labour and spare-parts inventory in a single stroke — and on an expansion project where the rack is already full, it is often the only way to add channels without adding a drop.Group-of-eight flexibility rather than one range for the whole card: The Schneider 140ACI05100SC is configured in four groups of eight channels, so one group can be taking 4–20 mA from pressure transmitters while another reads ±10 V from position feedback devices. Mixed-signal panels that would otherwise need a current card alongside a voltage card are handled by a single module, and the per-group arrangement keeps the common connections sane for the wiring contractor.Accuracy that survives the ambient: The accuracy figures are quoted across the full 0–60 °C span, not just at laboratory temperature. That distinction matters in a non-air-conditioned cabinet or a summer peak, where a module specified only at 25 °C will quietly drift. With ±0.05 % maximum error in voltage mode over the whole range, the Schneider 140ACI05100SC comfortably supports custody-adjacent measurement, dosing control and emissions monitoring.Per-channel diagnostics visible from across the room: Thirty-five front-panel LEDs mean that a technician can identify a failed channel, a disabled channel or a channel sitting outside its range limit without opening a programming terminal. A blinking channel LED flags an over-range condition directly at the module, and a blink-coded Fault LED identifies self-test failures by number — turning what is usually a laptop-based diagnostic exercise into a five-second visual check.
Application Field
Water and wastewater treatment: The Schneider 140ACI05100SC is a natural fit for plants with large analog populations — multiple turbidity, pH, chlorine residual, dissolved-oxygen and level transmitters spread across filter beds, clarifiers and pumping stations. High channel density matches the point count, while group-level range configuration lets the same module serve both 4–20 mA analyser loops and voltage-output flow meters.Power generation and utilities: In substation and cogeneration monitoring, the Schneider 140ACI05100SC acquires voltage and current transducer outputs, bearing and winding temperature signals, and generator auxiliary measurements. Its selectable notch filtering is valuable here, where 50 or 60 Hz mains-borne interference is the dominant noise source and a fixed filter would either pass the hum or blunt the measurement.Oil, gas and petrochemical: Wellhead instrumentation, pipeline pressure and temperature monitoring, tank farm level acquisition and offshore platform panels all benefit from the Schneider 140ACI05100SC, particularly where a project is retrofitted into an existing Quantum rack with no free slots for additional single-function cards.Building automation and district energy: Chiller plant optimisation, air-handling loops, BTU metering and energy monitoring generate exactly the pattern of many low-cost analog points that the Schneider 140ACI05100SC handles most economically, and the 10,000-count DVM data format simplifies scaling to engineering units in the PLC.Food, beverage and pharmaceutical: CIP skid monitoring, tank level, batch temperature profiling and hygienic process instrumentation all sit within the module’s range set, and group configuration avoids dedicating separate cards to each signal type.








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