Product Overview

The Siemens 6ES7132-6BD20-0DA0 is a high-speed digital output module belonging to the SIMATIC ET 200SP distributed I/O system. Its official product designation is DQ 4×24VDC/2A HS, indicating four 24 V DC digital output channels with a rated output current of 2 A per channel.

The module is used to control external industrial devices through digital output signals. Typical loads include solenoid valves, contactors, switching devices, and other 24 V DC actuators used in automated production equipment.

A key characteristic of this module is its high-speed output capability. In addition to standard digital switching, it supports pulse-width modulation (PWM) and oversampling operating modes. These functions make it suitable for applications requiring faster output response or more precisely timed switching signals.

The 6ES7132-6BD20-0DA0 uses source-type PNP push-pull outputs. Each of its four channels can deliver up to 2 A under the specified operating conditions, with a maximum total module output current of 8 A under the applicable derating conditions.

The module is installed in an ET 200SP station using a compatible BaseUnit of type A0. It communicates with the distributed I/O station through the backplane bus, allowing the controller to manage field devices through the ET 200SP architecture.

For automation engineers, this module is particularly relevant to high-speed switching applications, valve control, synchronized output operations, and distributed machine control.

Technical Specifications

Product Features

1. Four High-Speed Digital Outputs

The module provides four independent 24 V DC digital output channels. Each channel supports an output current of up to 2 A, making the module suitable for controlling multiple industrial loads within a compact ET 200SP station.

2. PNP Source Output Configuration

All four channels use source-type PNP push-pull outputs. This configuration supplies positive switching voltage to connected loads and supports common industrial 24 V DC control arrangements.

3. High-Speed Switching Performance

The module supports fast switching with a maximum switching frequency of 5 kHz for resistive, inductive, and lamp loads under specified conditions. Its output delay can be as low as 1 μs.

4. PWM Operating Mode

The integrated PWM function allows the module to generate pulse-width-modulated output signals. This is useful for applications such as valve control and other devices requiring controlled switching behavior.

5. Oversampling Function

The oversampling mode supports multiple output values within a single bus cycle. It enables time-based output control for applications requiring more precise synchronization between controller processing and field-level operations.

6. Short-Circuit Protection

The digital outputs include short-circuit protection. The module also supports diagnostic reporting for short-circuit conditions, helping maintenance personnel identify electrical faults.

7. Configurable Substitute Values

Substitute values can be configured for individual output channels. This allows the control application to define the output behavior required when certain communication or operating faults occur.

8. ET 200SP System Integration

The module integrates into the SIMATIC ET 200SP distributed I/O architecture through a compatible BU type A0 BaseUnit, supporting modular installation and centralized controller communication.

Working Principle

The 6ES7132-6BD20-0DA0 receives digital output commands from the higher-level PLC or distributed I/O controller through the ET 200SP backplane bus.

When the controller issues an output command, the module processes the corresponding channel state and switches its PNP output stage to supply the connected load with 24 V DC.

For standard digital operation, each channel operates according to the programmed output state. A logical signal of 1 activates the corresponding output, while a logical signal of 0 switches it off.

In PWM mode, the module generates pulse signals with configurable cycle durations and duty-cycle values. This allows connected devices to respond to controlled switching patterns rather than simple ON/OFF commands.

In oversampling mode, the module processes multiple output values within a bus cycle. This provides more detailed time-based output control for synchronized automation applications.

The module also monitors operating conditions and supports diagnostics for relevant faults, including short circuits and supply voltage problems.

Typical Operating Sequence:

1. The PLC generates digital output commands according to the control program.
2. Commands are transferred to the ET 200SP station through the communication interface.
3. The 6ES7132-6BD20-0DA0 receives the output data through the backplane bus.
4. The module processes the commands for the corresponding output channels.
5. The PNP output stages switch the connected 24 V DC loads.
6. External devices such as valves or contactors respond to the output signals.
7. The module monitors supported operating and diagnostic conditions.
8. Diagnostic information is transmitted to the controller when relevant faults occur.

Role in Siemens SIMATIC ET 200SP Control Architecture

Within the SIMATIC ET 200SP architecture, the 6ES7132-6BD20-0DA0 performs the field-level digital output function.

The module is installed alongside other ET 200SP I/O modules in a distributed station. The station communicates with the higher-level controller through an appropriate interface module, allowing the PLC to exchange process data with connected field devices.

The digital output module receives controller commands and converts them into electrical switching signals for external equipment.

Its high-speed operating modes make it particularly useful in applications where output timing, synchronized switching, and fast actuator control are important.

The module requires a compatible BU type A0 BaseUnit. The BaseUnit provides the electrical connection to the field wiring and the mechanical interface for the I/O module.

Industrial Applications

Installation and Maintenance

1. Verify Part Number: Confirm that the module is identified as 6ES7132-6BD20-0DA0 before installation or replacement.
2. Check BaseUnit Compatibility: Verify that the installation uses a compatible BU type A0 BaseUnit.
3. Isolate the Power Supply: Disconnect the relevant supply voltage and follow electrical safety procedures before removing or installing the module.
4. Inspect the Mounting Position: Check the ET 200SP station and mounting rail for damage, contamination, or loose connections.
5. Check Field Wiring: Verify that the connected loads and field wiring are suitable for 24 V DC PNP source outputs.
6. Verify Channel Current: Ensure that each connected load remains within the 2 A channel rating and that the total module current complies with the applicable derating requirements.
7. Install the Module: Fit the module into the designated BaseUnit and confirm that the mechanical connection is secure.
8. Check Terminal Connections: Inspect the BaseUnit wiring and verify that the field connections match the configured output channels.
9. Configure Operating Modes: Use the engineering software to configure standard DQ, PWM, or oversampling operation according to the application requirements.
10. Check Diagnostic Settings: Configure the available module diagnostics and substitute values according to the machine control strategy.
11. Perform Functional Testing: Test all four output channels and verify the correct response of connected field devices.
12. Record Maintenance Information: Document the module part number, configuration, channel assignments, and commissioning results for future maintenance.

Compatible System Components

Recommended Related Models

Key Advantages

• Four 24 V DC digital output channels.
• 2 A rated output current per channel.
• High-speed DQ operating mode.
• Supports PWM output generation.
• Supports oversampling for time-based output control.
• PNP source-type push-pull output configuration.
• Maximum switching frequency of 5 kHz under specified conditions.
• Integrated short-circuit protection.
• Configurable substitute values for individual channels.
• Compatible with the SIMATIC ET 200SP distributed I/O architecture.

Technical FAQs

1. What does DQ 4×24VDC/2A HS mean?

DQ identifies the digital output function, 4 indicates four output channels, 24VDC specifies the rated output voltage, 2A indicates the maximum rated current per channel, and HS stands for High Speed.

2. What is the difference between DQ, PWM, and oversampling modes?

DQ provides standard digital ON/OFF output control. PWM generates pulse-width-modulated signals with configurable cycle durations and duty cycles. Oversampling allows multiple output values to be processed within one bus cycle for more precise time-based control.

3. Which BaseUnit is required for the 6ES7132-6BD20-0DA0?

The Siemens technical documentation specifies BU type A0 as the compatible BaseUnit type. The actual terminal arrangement should be selected according to the field wiring requirements.

4. Can all four output channels operate at 2 A simultaneously?

The rated current is 2 A per channel, with a maximum module output current of 8 A under specified operating conditions. However, the permissible total current depends on installation orientation and ambient temperature. The Siemens derating specifications must be followed when designing the load arrangement.