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- 140DAO85300C
- Discrete Output Module
- France
- 103.9 × 40.3 × 250 mm
- 0.3 kg
- Xiamen, China
- New & In Stock
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Product Overview
In industrial automation systems, reliable discrete output control is essential for operating contactors, solenoid valves, indicator devices, relays, motor starters, and other field equipment. The Schneider 140DAO85300C Discrete Output Module is a digital output module designed to provide discrete control signals between a PLC system and connected field devices.
The 140DAO85300C belongs to the Modicon Quantum automation family and is intended for applications where a controller needs to switch multiple discrete output points. By receiving output commands from the PLC backplane, the module converts internal control logic into electrical output signals that can be used by external devices.
This type of module is particularly useful in centralized or distributed PLC architectures where multiple field actuators must be controlled independently.
The specified dimensions of the 140DAO85300C are 103.9 × 40.3 × 250 mm, with a specified weight of 0.3 kg.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Model | 140DAO85300C |
| Product Family | Modicon Quantum |
| Product Type | Discrete Output Module |
| Module Type | Digital / discrete output |
| Main Function | Discrete field-device control |
| Application | PLC automation and machine control |
| Output Function | ON/OFF switching |
| System Architecture | Modicon Quantum |
| Installation | Quantum rack / backplane |
| Dimensions | 103.9 × 40.3 × 250 mm |
| Weight | 0.3 kg |
| Field Application | Industrial automation |
| Typical Loads | Relays, contactors, solenoids, indicators and actuators |
| Operating Environment | Industrial control environment |
| System Role | PLC output interface |
Function and Working Principle
The main function of the 140DAO85300C is to provide discrete output signals from the PLC control system to external field devices.
A typical operating path can be represented as:
PLC CPU → Quantum Backplane → 140DAO85300C → Output Channel → Field Device
When the PLC program determines that an output should be activated, the output module receives the corresponding command through the system backplane.
The selected output channel then changes its electrical state, allowing the connected field device to respond.
Depending on the application, output channels can be used for:
- Solenoid valve control
- Contactor operation
- Relay control
- Motor starter commands
- Pilot lights
- Alarm devices
- Interlock circuits
- Actuator commands
- Machine-control outputs
- Process equipment switching
The module therefore forms an important interface between software-based PLC logic and physical industrial equipment.
Role in Industrial Control Systems
The Schneider 140DAO85300C provides the output layer of a PLC control architecture.
A typical Modicon Quantum system consists of a CPU, power supply, rack/backplane, communication modules, input modules, output modules, and field wiring interfaces.
The 140DAO85300C receives commands from the PLC control logic and provides the corresponding discrete output signals.
It can work alongside:
- Modicon Quantum CPU modules
- Quantum power supplies
- Quantum rack/backplane assemblies
- Digital input modules
- Analog input modules
- Analog output modules
- Communication modules
- Terminal blocks
- Relay interfaces
- Contactors and motor starters
- Solenoid valves
This architecture allows the PLC to control field equipment while maintaining separation between the controller’s internal logic and the physical process.
Industrial Applications
The Schneider 140DAO85300C can be used in a wide range of industrial automation applications where discrete outputs are required.
Typical applications include:
- Factory automation
- Machine control
- Material-handling systems
- Packaging equipment
- Conveyor systems
- Water and wastewater automation
- Process control
- Manufacturing lines
- Motor control systems
- Building automation
- Industrial utility systems
- Production equipment
Discrete output modules are especially useful for applications involving binary commands such as start/stop, open/close, enable/disable, and alarm activation.
For example, a PLC program can activate an output channel to energize a contactor, open a valve, start an auxiliary device, or trigger an alarm.
Installation and System Integration
Correct installation is important to ensure reliable communication between the PLC and field equipment.
Before installing or replacing the 140DAO85300C, technicians should verify the module type, rack position, wiring configuration, and field-device requirements.
Recommended procedures include:
- Shut down the relevant PLC equipment according to the approved procedure.
- Isolate field power where required.
- Verify the complete 140DAO85300C model.
- Confirm the intended Quantum rack position.
- Record existing wiring and terminal assignments.
- Inspect the module for physical damage.
- Verify the rack and backplane condition.
- Install the module in the correct position.
- Secure the module correctly.
- Connect field wiring according to the approved electrical drawings.
- Verify output-channel assignments.
- Check load voltage and current requirements.
- Restore PLC power.
- Check module status and controller diagnostics.
- Test individual output channels.
- Confirm the correct response from connected field devices.
- Perform system-level testing before returning the equipment to production.
Particular attention should be paid to the connected load.
A PLC output module should not be connected to a field device whose electrical requirements exceed the specified capability of the output circuit.
Compatible System Components
The 140DAO85300C can be integrated with several components within a Modicon Quantum PLC system.
| Component | Function |
|---|---|
| Quantum CPU | Executes PLC control logic |
| Quantum Power Supply | Provides system power |
| Quantum Rack | Houses the automation modules |
| Quantum Backplane | Provides module communication and power |
| Digital Input Modules | Receive ON/OFF field signals |
| Analog Input Modules | Receive process measurements |
| Analog Output Modules | Provide analog control signals |
| Communication Modules | Connect PLC systems to networks |
| Terminal Blocks | Provide field wiring connections |
| Relays and Contactors | Interface with external equipment |
| Solenoid Valves | Execute discrete process commands |
Together, these components create a complete PLC-based automation architecture.
Recommended Alternative Models
The following models may be considered when evaluating related Schneider Electric discrete-output hardware:
| Model | Type | Key Feature | Application |
|---|---|---|---|
| 140DAO85300C | Discrete Output Module | Quantum digital output interface | PLC control |
| 140DAO84000 | Discrete Output Module | Digital output control | Industrial automation |
| 140DAO84010 | Discrete Output Module | Discrete field outputs | Machine/process control |
| 140DRA84000 | Relay Output Module | Relay-based outputs | Industrial switching |
| 140DRA84010 | Relay Output Module | Discrete relay interface | Automation systems |
These models belong to related Modicon Quantum output families, but they should not automatically be considered direct replacements.
Differences in output technology, electrical characteristics, channel configuration, load capability, and wiring can affect compatibility.
The original module specification and PLC hardware configuration should therefore be verified before substitution.
Key Advantages
The Schneider 140DAO85300C provides several advantages for industrial PLC applications:
- Provides reliable discrete output control
- Interfaces PLC logic with field equipment
- Supports ON/OFF control applications
- Suitable for machine and process automation
- Integrates into Modicon Quantum architecture
- Supports control of relays, contactors and actuators
- Provides a compact PLC output interface
- Supports centralized automation architectures
- Simplifies discrete field-device control
- Suitable for industrial operating environments
Its main advantage is providing a direct interface between PLC control logic and discrete field devices.
Technical FAQs
What is Schneider 140DAO85300C?
The Schneider 140DAO85300C is a Modicon Quantum Discrete Output Module used to provide discrete control signals from a PLC system to field devices.
What is the main function of 140DAO85300C?
Its primary function is to convert PLC output commands into discrete electrical signals for connected industrial equipment.
What are the dimensions of 140DAO85300C?
The specified dimensions are 103.9 × 40.3 × 250 mm.
What is the weight of 140DAO85300C?
The specified weight is 0.3 kg.
What can the 140DAO85300C control?
Depending on the electrical configuration, discrete outputs can be used for devices such as relays, contactors, solenoid valves, indicators, motor starters, and other binary actuators.
Is 140DAO85300C an input module?
No. It is a discrete output module, meaning it sends control signals from the PLC toward field devices.
Is 140DAO85300C an analog output module?
No. It is designed for discrete output functions, rather than continuously variable analog signals.
Where is 140DAO85300C installed?
It is designed for installation within the appropriate Modicon Quantum rack and backplane architecture.
Can another Quantum output module replace 140DAO85300C?
Not automatically. Output voltage, current capability, channel configuration, wiring, load type, and PLC configuration should all be checked before substitution.
What should be checked before replacing 140DAO85300C?
The complete model number, output specifications, rack configuration, field wiring, connected loads, PLC configuration, and module compatibility should be verified.
Conclusion
The Schneider 140DAO85300C Discrete Output Module is an important output-interface component for Modicon Quantum PLC-based automation systems.
Its primary purpose is to receive commands from the PLC control logic and provide discrete electrical outputs for field devices such as contactors, relays, solenoid valves, indicators, motor starters, and other actuators.
The specified dimensions are 103.9 × 40.3 × 250 mm, with a weight of 0.3 kg.
The 140DAO85300C works together with Quantum CPUs, power supplies, racks, digital and analog I/O modules, communication hardware, and field-interface components to create a complete industrial automation system.
For maintenance engineers, system integrators, and spare-parts procurement teams, accurate identification of the 140DAO85300C is essential before replacement. Similar Quantum output modules may have different electrical characteristics even when their physical installation methods are similar.
When correctly matched with the PLC configuration and field loads, the 140DAO85300C provides a practical discrete-output solution for maintaining reliable machine and process control in industrial automation systems.