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Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Schneider Electric (Modicon) |
| Part Number | 140DDI84100 |
| Backplane Compatibility | Modicon Quantum 140 Series Backplanes |
| Number of Inputs | 16 Discrete Channels (Sink logic) |
| Nominal Input Voltage | 24 V DC |
| Input Voltage Range | 19.2 V DC to 30 V DC |
| Input Current | 7 mA at 24 V DC |
| Response Time | ≤1 ms (Off to On) / ≤1 ms (On to Off) |
| Bus Current Requirement | 180 mA at 5.1 V DC (From backplane supply) |
| Isolation Voltage | 2,500 V DC for 1 minute (Field to backplane bus) |
| Field Terminal Block | Standard 140XTS00200 40-pin removable terminal block |
Product Introduction & Supply Chain Strategy
This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All modules undergo rigorous quality verification to ensure OEM-level reliability. The Schneider Modicon 140DDI84100 Discrete Input Module interfaces switches, proximity sensors, and relay contacts with Modicon Quantum PLC CPUs across automated manufacturing, water treatment, and material handling systems.
From a Total Cost of Ownership (TCO) perspective, securing a verified New Surplus 140DDI84100 module is an essential safeguard against unexpected production line halts. As Schneider Electric shifts platform focus toward the Modicon M580 series, legacy Quantum I/O cards encounter increasing lead time variability. Holding 1–2 units as local buffer stock eliminates repair delays while avoiding the burnt optical isolators, cracked terminal latches, and intermittent signal loss common in cheap refurbished units.
Installation & Configuration Guide
Stage 1: Pre-Installation (Prep & Safety)
- Execute Lock-Out/Tag-Out (LOTO) procedures on the Modicon Quantum rack power supply unit and external 24 V DC field power supplies.
- Put on a grounded ESD wrist strap connected to the metal chassis rail of the enclosure.
- Label and record wire terminations on the 40-pin terminal connector (140XTS00200) and take a reference photo of field wiring connections.
Stage 2: Removal
- Unlatch the top and bottom locking levers on the 40-pin terminal block and pull the wiring connector off the module faceplate.
- Depress the top and bottom module release tabs on the Quantum backplane slot.
- Tilt the module forward slightly, lift it up off the bottom alignment hooks of the backplane slot, and place it immediately in an ESD-shielded bag.
Stage 3: Installation (Clone & Seat)
- Hook the lower rear notch of the new 140DDI84100 module onto the Quantum backplane rail in the designated slot.
- Pivot the module upward and press firmly until both top and bottom latches click securely into place.
- Align the pre-wired 40-pin terminal block with the front connector header and press until the locking levers snap closed.
Stage 4: Power-On & Testing
- Re-energize the Quantum backplane power supply and external 24 V DC field supply.
- Confirm that the front-panel RUN / READY LED illuminates solid green and no fault lights are displayed.
- Actuate connected field devices (switches or sensors) and observe the front-panel channel status LEDs to verify real-time input state changes.
140DDI84100
140DDI84100
Firmware/Software Versions & Upgrade Notes
- Software Compatibility: Fully supported in EcoStruxure Control Expert (formerly Unity Pro), Concept, ProWORX 32, and Modsoft programming environments.
- Hardware Revision: Executable Hardware Rev 01 or later.
- Firmware Swap Warning: The 140DDI84100 is a pass-through discrete input card configured via the PLC CPU memory map. No onboard user firmware flashing is required. When replacing hardware, ensure the slot position matches the I/O map in the PLC application project; placing the module in an unassigned slot will cause a backplane configuration fault (F LED active).
Frequently Asked Questions (FAQ)
Is this Schneider Modicon 140DDI84100 module 100% Genuine New Surplus? Yes. This discrete input module is 100% Genuine New Surplus. It has never seen active runtime in an industrial facility and was sourced from clean spare parts inventory. We maintain a strict zero-tolerance policy against second-hand, pulled, or refurbished components.
Why pay a premium for New Surplus over a refurbished 140DDI84100 module? Refurbished digital input modules often suffer from degraded optocouplers, thermal fatigue on input resistors, or static damage that leads to false signal readings or dead channels. Investing in New Surplus guarantees factory-level input sensitivity, clean signal isolation, and complete operational reliability.
What is the OEM lifecycle status for the Modicon Quantum 140DDI84100? The Quantum 140 series is in a mature/legacy stage as Schneider Electric emphasizes the Modicon M580 PAC platform. Maintaining New Surplus 140DDI84100 modules in safety stock is critical to extending the operating lifespan of active Quantum racks without committing to immediate, capital-intensive PLC hardware migrations.
Can I hot-swap this digital input module while the Quantum rack is running? Modicon Quantum backplanes support Hot Swap (Removal and Insertion Under Power – RIOC) for I/O modules, provided plant safety guidelines permit live maintenance. However, ensure field supply power is switched off at the terminal block to prevent accidental short circuits during module insertion.
What warranty coverage comes with this part? Unlike standard 30-day warranties on used components, our New Surplus 140DDI84100 board includes a full 1-year functional replacement warranty, supported by complete static and power-on QC testing.
