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The 140DDI84100 is a high-precision discrete input module engineered for the Modicon Quantum automation platform. Featuring 16 input channels, this module is designed to interface field-level binary signals with the PLC processor....
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The 140DDI84100 is a high-precision discrete input module engineered for the Modicon Quantum automation platform. Featuring 16 input channels, this module is designed to interface field-level binary signals with the PLC processor. It operates on positive logic (sinking) and is highly versatile due to its wide input voltage tolerance, ranging from 10 V to 60 V DC, allowing it to support both 24 V and 48 V nominal control circuits.
The module architecture is organized into 8 isolated groups (2 channels per group), providing strong protection against electrical interference and ensuring signal integrity across diverse field circuits. With a low power dissipation profile and a maximum switching frequency of 100 Hz, the 140DDI84100 is optimized for monitoring limit switches, pushbuttons, and proximity sensors in continuous process environments.
| Parameter | Specification |
|---|---|
| Model Identification | 140DDI84100 |
| Product Series | Modicon Quantum |
| Total Discrete Inputs | 16 Channels |
| Channel Segmentation | 8 groups (2 channels per group) |
| Input Logic Type | Sinking (Positive Logic) |
| Operating Voltage Range | 10 V to 60 V DC |
| Absolute Maximum Voltage | 75 V DC |
| Addressing Requirement | 1 Input Word |
| Maximum Switching Frequency | 100 Hz |
| Response Time | < 1 ms |
| Net Weight | 0.3 kg |
Processing signals from 24 V or 48 V DC field sensors in power utility substations.
Monitoring safety interlocks and status contacts in manufacturing assembly lines.
Interfacing with remote telemetry units where varying DC supply voltages are present.
What is the benefit of the 8-group isolation?
The 140DDI84100 provides electrical separation between its 8 groups, preventing a ground fault in one field circuit from affecting the inputs in other groups, significantly increasing system reliability.
Does this module support AC input signals?
No. The 140DDI84100 is strictly rated for DC input. For AC applications, a 140DAI series module should be selected.
