The Schneider Electric 140DDI35310 is a high-density discrete input module designed for the Modicon Quantum automation platform. It provides 32 input channels for monitoring field devices such as limit switches, pushbuttons, proximity sensors, and photoelectric sensors. This module operates at 24V DC with negative (source) logic, which is common in many industrial control systems. Additionally, its fast scanning speed and robust electrical isolation ensure accurate signal acquisition even in noisy environments. Therefore, the 140DDI35310 is an excellent choice for large-scale I/O-intensive applications.
First, let us examine the core input parameters. The 140DDI35310 offers 32 discrete input channels arranged in 4 groups of 8 channels each. This grouped structure simplifies wiring organization and aids in troubleshooting. Each input accepts a nominal voltage of 24V DC, with an operating range of 19.2 to 30V DC to accommodate voltage fluctuations. For guaranteed ON-state detection, the module requires a voltage between -30 and -15V DC with a minimum current of 2.5 mA at -14V. Conversely, the OFF-state is guaranteed at -5 to 0V DC with a leakage current of ≤ 0.5 mA. The input impedance is 2400 Ohms, which minimizes current draw from field devices.
Speed is essential for capturing fast-changing signals. The 140DDI35310 delivers a response time of ≤ 1 ms for both ON-to-OFF and OFF-to-ON transitions. This rapid response ensures that your PLC captures high-speed events such as product counting or position sensing without missing pulses. Moreover, the module supports absolute maximum inputs of 30V continuous and can withstand 50V for 1 ms decaying pulses, providing a safety margin against voltage spikes from inductive field wiring.
Reliability is built into every aspect of this module. The Schneider 140DDI35310 includes resistor-limited input protection, which safeguards against overcurrent conditions. For diagnostics, the module features a comprehensive LED array. Specifically, an Active LED (green) indicates bus communication is present, while a red F LED lights up when an external fault is detected. Additionally, 32 green LEDs provide individual visual status for each input channel, allowing technicians to rapidly verify field device operation. This diagnostic capability significantly reduces troubleshooting time during system maintenance.
Electrical isolation is critical for protecting the PLC backplane and ensuring accurate readings. The 140DDI35310 provides 1780V RMS isolation between the input groups and the bus for 1 minute, and 500V RMS isolation between groups. This high isolation level protects against ground loops and transient voltages. The module draws 330 mA from the Quantum rack's backplane for internal logic and dissipates approximately 1.5W plus 0.26W per active channel. Therefore, you should consider the total power consumption when planning your rack layout.
The 140DDI35310 is built for demanding industrial environments. It operates reliably in temperatures from 32 to 140 °F (0 to 60 °C) and can be stored between -40 and 185 °F (-40 to 85 °C). The module tolerates 95% relative humidity without condensation and operates at altitudes up to 5000 meters (16,404 feet). Furthermore, it holds multiple certifications, including FM Class 1 Division 2, RINA, RMRS, GOST, and C-tick. It also meets electromagnetic compatibility standards such as IEC 801-2 for electrostatic discharge (4 kV contact, 8 kV air) and IEC 801-3 for radiated immunity (10 V/m at 80-2000 MHz). These certifications ensure reliable performance in harsh industrial settings worldwide.
The 140DDI35310 uses the standard Quantum module format and installs directly into a Quantum rack. It draws its internal power from the rack's backplane, requiring no external power supply. Simply insert the module into any available slot in the chassis. For field wiring, the module connects via a removable terminal block (sold separately) that accommodates up to 32 input signals plus commons. Always ensure the rack is powered off before inserting or removing the module to prevent damage. Additionally, route input wiring away from high-power AC lines to minimize noise pickup.
1 x 140DDI35310 Modicon Quantum DC discrete input module
1 x Product information leaflet
Note: Terminal blocks, cables, and programming software are not included in the package.
1. What type of logic does the 140DDI35310 support?
The 140DDI35310 uses negative (source) logic, where the input is active when a negative voltage is applied relative to common.
2. How fast does the 140DDI35310 respond to input changes?
This module delivers a fast response time of ≤ 1 ms for both ON and OFF transitions.
3. Does the 140DDI35310 provide individual channel status indication?
Yes, it features 32 green LEDs that display the live status of each input channel.
4. What is the operating voltage range for the 140DDI35310?
The module accepts inputs from 19.2V to 30V DC, with a nominal rating of 24V DC.
5. Does this module offer isolation between input groups?
Yes, the 140DDI35310 provides 500V RMS isolation between groups and 1780V RMS isolation to the bus.
Shipping Method: All orders are dispatched via FedEx, UPS, or DHL to ensure fast and reliable delivery worldwide.
| Brand Name | |
| Model No. | 140DDI35310 |
| Product Type | Discrete Input Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
