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- Siemens
- 6ES7132-6BD20-0CA0
- Digital Output Module
- Germany
- 15 × 73 × 58 mm
- 0.037 kg
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Product Overview
The Siemens 6ES7132-6BD20-0CA0 is a SIMATIC ET 200SP High Feature digital output module designed for distributed industrial automation systems. Identified as DQ 4×24 V DC/2 A HF, it provides four digital output channels for controlling external 24 V DC field devices.
Unlike the Standard version 6ES7132-6BD20-0BA0, this High Feature module offers more extensive diagnostic capabilities. It supports channel-level monitoring, including short-circuit and wire-break detection, as well as supply voltage monitoring. These functions help maintenance personnel identify field wiring problems and output circuit faults.
The module uses PNP sourcing technology. When an output is activated, it switches the positive 24 V DC supply to the connected load. Each channel supports an output current of up to 2 A, making the module suitable for compatible solenoid valves, DC contactors, and industrial indicator lights.
Designed for use with an ET 200SP BaseUnit of type A0, the 6ES7132-6BD20-0CA0 combines distributed output control with advanced diagnostic functions for industrial machinery and process automation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Product Type | SIMATIC ET 200SP Digital Output Module |
| Model | 6ES7132-6BD20-0CA0 |
| Product Series | SIMATIC ET 200SP |
| Module Type | High Feature Digital Output Module |
| Function Designation | DQ 4×24 V DC/2 A HF |
| Number of Outputs | 4 |
| Output Type | PNP, Sourcing Output |
| Rated Supply Voltage | 24 V DC |
| Permissible Supply Voltage | 19.2–28.8 V DC |
| Rated Output Voltage | 24 V DC |
| Rated Output Current | 2 A per channel |
| Maximum Total Output Current | 8 A, subject to derating |
| Short-Circuit Protection | Supported |
| Wire-Break Diagnostics | Supported, channel-specific |
| Short-Circuit Diagnostics | Supported, channel-specific |
| Supply Voltage Monitoring | Supported |
| Diagnostic Interrupts | Supported |
| Substitute Value Output | Supported |
| Multi-Value Operation (MSO) | Supported |
| Compatible BaseUnit | BU Type A0 |
| Color Code | CC02 |
| Firmware Version | V2.0.3 |
| Typical Power Loss | 1 W |
| Dimensions | 15 × 73 × 58 mm |
| Weight | 0.037 kg |
Product Features
- Four digital output channels: Controls four independent 24 V DC field devices through one electronic module.
- High Feature functionality: Provides expanded diagnostic capabilities compared with the Standard output module.
- PNP sourcing technology: Switches the positive supply voltage to connected field loads.
- 2 A rated channel current: Supports individual output loads within the specified current limits.
- Short-circuit monitoring: Helps identify output circuit short-circuit conditions.
- Wire-break detection: Supports channel-specific monitoring of field wiring.
- Supply voltage monitoring: Detects problems affecting the output power supply.
- Substitute value configuration: Allows predefined output states to be configured for individual channels.
- Multi-Value Operation: Supports MSO functionality for applications requiring multiple output data sets.
- Modular installation: Fits compatible SIMATIC ET 200SP BaseUnits of type A0.
Working Principle
The 6ES7132-6BD20-0CA0 converts digital commands from the PLC into electrical switching signals for external 24 V DC loads.
The basic signal path is:
SIMATIC PLC → ET 200SP Interface → Backplane Bus → 6ES7132-6BD20-0CA0 → DC Field Devices
When the PLC activates an output channel, the module’s PNP switching circuit connects the positive 24 V DC supply to the corresponding field load. Current flows through the connected device and returns through the appropriate reference connection.
When the output command is deactivated, the switching element interrupts the positive supply path, turning off the connected load.
Each channel supports an output current of up to 2 A. The combined output current is subject to installation conditions and temperature derating. Engineers must consider these limitations when operating several channels simultaneously.
The High Feature version also monitors output-related fault conditions. Channel-specific short-circuit and wire-break diagnostics help identify problems in field wiring and connected equipment. Supply voltage monitoring provides additional information about the condition of the output power source.
The module communicates diagnostic information through the ET 200SP architecture, allowing the controller and engineering system to identify faults and support maintenance activities.
Role in the SIMATIC ET 200SP Control Architecture
The 6ES7132-6BD20-0CA0 functions as a four-channel High Feature digital output interface in the SIMATIC ET 200SP distributed I/O architecture.
The central PLC executes the automation program and generates output commands. The ET 200SP interface transfers the corresponding data through the backplane bus to the output module, which switches the connected field devices.
A typical control arrangement is:
SIMATIC PLC → ET 200SP Interface Module → Backplane Bus → 6ES7132-6BD20-0CA0 → 24 V DC Field Loads
| System Component | Function |
|---|---|
| SIMATIC PLC | Executes automation logic and generates output commands |
| ET 200SP Interface Module | Connects the distributed I/O station to the control network |
| ET 200SP BaseUnit | Provides the module mounting and electrical connection interface |
| 6ES7132-6BD20-0CA0 | Controls four 24 V DC digital output channels |
| 24 V DC Power Supply | Supplies the field-side output circuits |
| Field Wiring | Connects the output channels to external equipment |
| DC Field Devices | Execute switching and operating commands |
The module handles field-side switching and diagnostic functions, while the controller and distributed I/O interface manage automation logic and communication.
Industrial Applications
| Application | Typical Use |
|---|---|
| Industrial Machinery | Controlling 24 V DC actuators and auxiliary equipment |
| Manufacturing Automation | Switching field devices through distributed PLC outputs |
| Packaging Equipment | Operating solenoid valves and compatible DC loads |
| Material Handling | Controlling discrete electrical equipment |
| Process Automation | Executing PLC-controlled output commands |
| Assembly Lines | Switching individual machine functions |
| Industrial Control Cabinets | Providing localized digital output interfaces |
| Conveyor Systems | Controlling compatible DC electrical devices |
| Equipment Monitoring | Identifying output wiring and short-circuit faults |
| Distributed Automation | Expanding output capacity near field equipment |
Installation and Maintenance
- Verify the module designation: Confirm that 6ES7132-6BD20-0CA0 is the required High Feature digital output module, not the Standard 6ES7132-6BD20-0BA0.
- Check the BaseUnit: Ensure that the installation position uses a compatible ET 200SP BaseUnit of type A0.
- Verify supply voltage: Confirm that the output circuit receives the specified 24 V DC supply within its permissible voltage range.
- Observe channel current limits: Ensure that individual loads do not exceed the rated 2 A output current.
- Check total current: Consider the combined output current and applicable temperature and mounting-position derating limits.
- Isolate electrical power: Disconnect the relevant power sources before removing or installing the module.
- Inspect terminal connections: Check the BaseUnit terminals and field wiring for loose connections, corrosion, or damaged insulation.
- Verify output polarity: Confirm the PNP sourcing connection arrangement and correct positive and reference wiring.
- Check field devices: Verify that connected solenoid valves, contactors, and indicator lights are compatible with the module’s electrical ratings.
- Test output channels: Activate each channel separately and confirm that the corresponding field device responds correctly.
- Monitor diagnostic indicators: Check the supply voltage, channel status, and diagnostic indications during commissioning and troubleshooting.
- Document maintenance activities: Record the module part number, BaseUnit configuration, connected loads, diagnostic findings, and test results.
Key Advantages
- Provides four independent 24 V DC digital output channels.
- Supports PNP sourcing output technology.
- Offers a rated output current of 2 A per channel.
- Provides channel-specific short-circuit and wire-break diagnostics.
- Supports supply voltage monitoring and configurable substitute values.
- Offers High Feature functionality within the SIMATIC ET 200SP architecture.
Technical FAQs
What is the difference between 6ES7132-6BD20-0CA0 and 6ES7132-6BD20-0BA0?
The 6ES7132-6BD20-0CA0 is the High Feature version, while the 6ES7132-6BD20-0BA0 is the Standard version. The HF model offers more extensive diagnostic functions, including channel-specific short-circuit and wire-break monitoring.
Does the 6ES7132-6BD20-0CA0 support individual channel diagnostics?
Yes. It supports channel-specific short-circuit and wire-break diagnostics. It also monitors the output supply voltage, helping identify electrical problems during operation.
What type of field devices can this module control?
It is suitable for compatible 24 V DC solenoid valves, DC contactors, and indicator lights. The connected equipment must remain within the module’s rated output current and electrical operating limits.
Which BaseUnit is required for this module?
The 6ES7132-6BD20-0CA0 is specified for an ET 200SP BaseUnit of type A0. The BaseUnit must also provide the appropriate electrical connection arrangement for the intended installation.