Introduction
As industrial automation evolved from relay logic to high-density digital control, engineers demanded faster, denser output modules. The Schneider Electric 140DDO15310C answers that call. This Modicon Quantum TTL discrete output module packs 32 channels into a standard format, delivering TTL positive (sink) signals at 5 V DC. For plants running legacy Quantum systems, it is a practical, ready-to-ship spare that keeps production lines moving.

Technical Specifications
The 140DDO15310C organizes its 32 outputs into 4 groups of 8 channels. Each point handles up to 75 mA, each group up to 600 mA, and the module up to 2.4 A. An internal 440 Ohm pullup resistor supports signal integrity. Response time is <= 250 µs for state transitions, making the module suitable for time-sensitive discrete control.
| Specification | Value |
|---|---|
| Output Channels | 32 (4 groups of 8) |
| Output Type | TTL Positive (sink) |
| Output Voltage | 5 V DC |
| Max Load Current | <= 2.4 A per module, <= 600 mA per group, <= 75 mA per point |
| Response Time | <= 250 µs |
| Power Dissipation | 4 W |
| Bus Current | 350 mA |
| Ambient Temperature | 0 to 60 °C |
| Standards | UL 508, CSA |
Applications and Integration
In oil and gas facilities, the 140DDO15310C drives solenoid valves, indicator lamps, and small relays. Its 5 V DC TTL output suits low-level logic interfaces, while the conformal coating protects against humid or dusty environments. The module integrates into Modicon Quantum backplanes and requires 2 output words for addressing. For fieldbus networks, wiring may need an external gateway or connection module; confirm cables and gateways with your supplier.

Maintenance and Reliability
The 140DDO15310C includes output protection by transient voltage suppression and an internal fuse. LEDs indicate bus communication (green), external fault (red), and channel status (32 green). In case of blown fuse or loss of field power, the fault LED alerts operators. Periodic inspection of connections and the operating environment helps maintain reliability. Store within -40 to 85 °C and operate at 0 to 60 °C.
Selection Guide
Before ordering, verify your system uses Modicon Quantum and requires TTL positive (sink) outputs. Check that your power supply provides 4 to 5.5 V DC and that your addressing scheme accommodates 2 output words. The 140DDO15310C weighs 0.45 kg and carries CE marking plus UL 508 and CSA certifications. For hands-on technical selection help, contact Oil AutoTech today for pricing and availability.
FAQs
What is the output voltage of the 140DDO15310C?
It provides a TTL positive (sink) output at 5 V DC.
How many output channels does this module have?
It has 32 channels arranged in 4 groups of 8.
What is the maximum load current per point?
Each point supports up to 75 mA.
Does the 140DDO15310C require external power?
It draws 350 mA from the bus and needs a 4 to 5.5 V DC supply for outputs.
What certifications does this module carry?
It is CE marked and meets UL 508 and CSA standards.
