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- 6ES7132-6BD20-0BA0
- Digital Output Module
- Germany
- 15 × 73 × 58 mm
- 0.036 kg
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Product Overview
The Siemens 6ES7132-6BD20-0BA0 is a SIMATIC ET 200SP digital output module designed for distributed automation and industrial control applications. It provides four 24 V DC digital output channels, each supporting a rated output current of 2 A.
This Standard (ST) output module uses PNP sourcing technology to switch connected DC loads. It receives output commands through the ET 200SP backplane bus and controls external devices according to the PLC program.
The module is suitable for controlling solenoid valves, DC contactors, indicator lights, and other compatible 24 V DC equipment. Its four-channel arrangement allows multiple field devices to be controlled from a single electronic module.
The 6ES7132-6BD20-0BA0 supports configurable diagnostics and substitute output values. It also provides short-circuit protection and supply-voltage monitoring, helping maintenance personnel identify output-system problems during operation.
Designed for installation with a compatible ET 200SP BaseUnit of type A0, this module provides a compact digital output interface for distributed control stations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Product Type | SIMATIC ET 200SP Digital Output Module |
| Model | 6ES7132-6BD20-0BA0 |
| Product Series | SIMATIC ET 200SP |
| Module Type | Digital Output Module |
| Function Designation | DQ 4×24 V DC/2 A ST |
| Number of Outputs | 4 |
| Output Type | PNP, Sourcing Output |
| Rated Supply Voltage | 24 V DC |
| Output Voltage | 24 V DC |
| Rated Output Current | 2 A per channel |
| Maximum Total Output Current | 8 A, subject to installation and temperature derating |
| Short-Circuit Protection | Yes |
| Supply Voltage Monitoring | Yes |
| Wire-Break Diagnostics | Yes |
| Diagnostic Interrupts | Supported |
| Substitute Value Output | Supported |
| Electrical Isolation | Between output circuits and backplane bus |
| Compatible BaseUnit | BU Type A0 |
| Color Code | CC02 |
| Dimensions | 15 × 73 × 58 mm |
| Weight | 0.036 kg |
Product Features
- Four digital output channels: Controls up to four independent 24 V DC field loads.
- PNP sourcing technology: Switches the positive supply voltage to connected loads.
- 2 A rated channel current: Supports individual output loads within the specified current limits.
- 8 A total output capacity: Provides a combined output current of up to 8 A under specified installation and temperature conditions.
- Short-circuit protection: Protects the output channels against short-circuit conditions.
- Diagnostic functions: Supports monitoring of supply voltage, wire breaks, and short circuits.
- Substitute output values: Allows predefined output states to be configured for individual channels.
- Channel status indication: Green LEDs provide visual information about individual output states.
- Module diagnostics indication: A DIAG LED provides visual diagnostic information.
- Modular installation: Fits compatible ET 200SP BaseUnits of type A0.
Working Principle
The 6ES7132-6BD20-0BA0 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 → 6ES7132-6BD20-0BA0 → 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 load. Current then flows through the connected field device and returns through the circuit’s reference connection.
When the output command is deactivated, the switching element interrupts the positive supply path, turning off the connected load.
Each output supports a rated current of 2 A. The combined output current is subject to temperature and installation-position limitations. For horizontal installation, the maximum total current is 8 A up to 40°C, 6 A up to 50°C, and 4 A up to 60°C. Vertical installation has different derating limits.
The module also monitors output-related fault conditions. Short-circuit and wire-break diagnostics help identify problems in field wiring and connected loads. Supply-voltage monitoring provides additional information about the output power supply.
Role in the SIMATIC ET 200SP Control Architecture
The 6ES7132-6BD20-0BA0 operates as a four-channel digital output interface in the SIMATIC ET 200SP distributed I/O architecture.
The central PLC executes the automation program and sends output data to the distributed I/O station. The ET 200SP interface transfers these commands through the backplane bus to the output module, which switches the corresponding field devices.
A typical control arrangement is:
SIMATIC PLC → ET 200SP Interface Module → Backplane Bus → 6ES7132-6BD20-0BA0 → 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 |
| 6ES7132-6BD20-0BA0 | Switches 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 the field-side switching operation, while the controller and interface module 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 other 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 Modernization | Replacing compatible ET 200SP digital output modules |
| Distributed Automation | Expanding output capacity near field equipment |
Installation and Maintenance
- Verify the module designation: Confirm that 6ES7132-6BD20-0BA0 is the required four-channel Standard digital output module.
- 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.
- 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 PWR, channel status, and DIAG LEDs 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.
- Includes short-circuit and wire-break diagnostic functions.
- Supports configurable substitute output values.
- Integrates into the modular SIMATIC ET 200SP distributed I/O system.
Technical FAQs
What does DQ 4×24 V DC/2 A ST mean?
DQ identifies the digital output function, 4 indicates four output channels, 24 V DC specifies the rated output voltage, 2 A represents the rated current per channel, and ST identifies the Standard module category.
Is the 6ES7132-6BD20-0BA0 a PNP or NPN output module?
It uses PNP sourcing output technology. When an output is activated, the module switches the positive 24 V DC supply to the connected load.
Does this module support short-circuit and wire-break diagnostics?
Yes. It supports module-level short-circuit and wire-break diagnostics, along with supply-voltage monitoring. These functions help identify problems in the field wiring and output circuits.
Can all four outputs continuously operate at 2 A?
The rated channel current is 2 A, but the combined module current is subject to temperature and installation-position derating. For horizontal installation, the maximum total current is 8 A up to 40°C, decreasing at higher temperatures. The applicable operating conditions must be considered when using all four channels.