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- Siemens
- 6ES7132-4BB31-0AA0
- Digital Output Electronic Module
- Germany
- 15 × 81 × 52 mm
- 0.178 kg
- Xiamen, China
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Product Overview
The Siemens 6ES7132-4BB31-0AA0 is a SIMATIC ET 200S digital output electronic module with two 24 V DC output channels, each rated at 2 A. It is intended for distributed automation systems in which a central PLC controls field devices through modular I/O stations installed close to the machinery.
In an industrial control cabinet, this module can switch compatible solenoid valves, contactor coils, indicator devices, and other DC loads according to commands generated by the PLC. Its two output channels allow separate control of two devices or functions within a machine sequence, reducing the need to route every output signal back to a central control panel.
The 6ES7132-4BB31-0AA0 is the standard-function version of the ET 200S two-channel, 24 V DC/2 A output module. It provides basic output switching and green channel-status indication but does not offer the channel-level short-circuit and wire-break diagnostics available on corresponding High Feature variants. This distinction matters when selecting a replacement for an existing installation or deciding how much fault information the control system needs.
The module receives its load voltage from the associated ET 200S power module and connects to the field wiring through a compatible terminal module. The connected devices must match the module’s output characteristics, and the load circuit must remain within the permitted current and switching limits.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 6ES7132-4BB31-0AA0 |
| Product Family | SIMATIC ET 200S |
| Product Type | Digital Output Electronic Module |
| Functional Version | Standard (ST) |
| Number of Digital Outputs | 2 |
| Rated Load Voltage | 24 V DC |
| Output Type | PNP, sourcing |
| Rated Output Current | 2 A per channel |
| Permissible Output Current | 7 mA to 2.4 A per channel |
| Maximum Total Output Current | 4 A per module |
| Short-Circuit Protection | Yes |
| Channel-Level Short-Circuit Diagnostics | No |
| Wire-Break Diagnostics | No |
| Output Status Indicators | Green LED per channel |
| Maximum Switching Frequency, Resistive Load | 100 Hz |
| Maximum Switching Frequency, Inductive Load | 2 Hz |
| Maximum Switching Frequency, Lamp Load | 10 Hz |
| Maximum Lamp Load | 10 W |
| Typical Power Dissipation | 1.4 W |
| Maximum Output Delay, OFF to ON | 200 μs, resistive load |
| Maximum Output Delay, ON to OFF | 1.3 ms, resistive load |
| Address Space | 1 byte; 2 bits when packed |
| Potential Separation | Between outputs and backplane bus; no isolation between output channels |
| Dimensions | 15 × 81 × 52 mm |
| Weight | 0.178 kg |
Product Features
- Two 24 V DC output channels: Controls two compatible field devices through independent PLC output commands.
- 2 A rated current per channel: Supports loads within the module’s specified current and switching limits.
- PNP sourcing outputs: Switches the positive load supply to compatible DC actuators.
- Short-circuit protection: Helps protect the output circuit under the specified fault conditions.
- Local status indication: Green LEDs provide visual information about the individual output states.
- Distributed I/O integration: Connects field devices to the SIMATIC ET 200S automation system through a modular station.
- Standard-function design: Provides basic digital output operation without the additional channel-level diagnostics of High Feature variants.
- Defined switching characteristics: Supports resistive, inductive, and lamp loads within the applicable electrical limits.
Working Principle
The 6ES7132-4BB31-0AA0 receives output data from the PLC through the ET 200S backplane bus. It converts the commanded digital states into electrical switching signals for connected 24 V DC field devices.
The basic signal path is:
PLC CPU → ET 200S Interface Module → Backplane Bus → 6ES7132-4BB31-0AA0 → Field Actuator
When the PLC sets an output to logical state 1, the corresponding PNP output switches the positive load supply toward the connected device. The actuator then responds according to its electrical and mechanical characteristics. When the command changes to state 0, the output switches to its inactive condition.
The module supports two independent output channels, allowing a PLC program to control separate devices or coordinate multiple steps in a machine sequence. For example, one channel may operate a solenoid valve while the other controls a contactor coil, provided that each load is electrically compatible with the module.
Short-circuit protection is incorporated into the output design, but this should not be confused with detailed channel-level fault diagnosis. Unlike the corresponding High Feature version, the 6ES7132-4BB31-0AA0 does not provide the same wire-break and short-circuit diagnostic reporting. A field device that fails to operate may therefore require checks of the supply, wiring, load, and output state rather than relying on a dedicated diagnostic message.
The module also provides green LEDs for output-status indication. These indicators help technicians establish whether an output channel is commanded or active, but they do not independently confirm that the connected actuator has completed its mechanical operation.
Because the output channels share the module’s electrical reference, they must be wired according to the specified common-potential arrangement. The two outputs must not be paralleled to increase the available current. The intended output-current limits and load requirements must be observed during system design.
Role in the SIMATIC ET 200S Control Architecture
The 6ES7132-4BB31-0AA0 serves as the electrical output stage between the distributed I/O station and the controlled field devices. The PLC executes the application logic, while the module switches the connected loads according to the received output data.
PLC CPU → ET 200S Interface Module → Backplane Bus → Digital Output Module → Field Devices
| System Component | Function |
|---|---|
| SIMATIC PLC CPU | Executes the control program and generates output commands |
| ET 200S Interface Module | Connects the distributed I/O station to the automation network |
| ET 200S Backplane Bus | Transfers output data between the interface module and electronic modules |
| 6ES7132-4BB31-0AA0 | Switches two 24 V DC output channels |
| ET 200S Power Module | Supplies the designated load voltage to the I/O group |
| ET 200S Terminal Module | Provides the electrical connection for field wiring |
| Field Actuators | Convert electrical output signals into mechanical or visual actions |
| Engineering Software | Configures the station and assigns PLC output addresses |
| HMI or SCADA System | Displays machine states and alarms when configured in the application |
The standard-function module is suitable for applications where basic output switching is sufficient. If the machine requires channel-level fault identification, the corresponding High Feature module may be more appropriate, provided the complete hardware configuration and application requirements are compatible.
Industrial Applications
| Application | Typical Use |
|---|---|
| Packaging Machinery | Switching solenoid valves and auxiliary mechanisms |
| Conveyor Systems | Operating contactors and compatible DC actuators |
| Assembly Automation | Controlling pneumatic devices within programmed sequences |
| Material Handling | Switching field devices in transfer and positioning systems |
| Machine-Building Control Panels | Providing distributed digital outputs for production equipment |
| Pump Control Systems | Operating compatible interface devices and DC control loads |
| Process Equipment | Switching discrete field devices according to PLC commands |
| Industrial Production Lines | Coordinating actuator operation across distributed I/O stations |
| Equipment Modernization | Replacing a matching standard-function ET 200S output module |
| General Factory Automation | Controlling compatible 24 V DC field loads |
Installation and Maintenance
- Verify the complete order number: Confirm 6ES7132-4BB31-0AA0 and distinguish it from similarly named modules with different output currents or diagnostic capabilities.
- Check terminal-module compatibility: Ensure that the installed ET 200S terminal module supports the electronic module and the intended field-wiring arrangement.
- Verify the load supply: Confirm that the associated power module supplies the required 24 V DC load voltage and that the supply is correctly connected.
- Check actuator ratings: Verify the current demand and electrical characteristics of each connected load, including the additional effects of inductive switching.
- Isolate the I/O station: Follow the approved electrical isolation procedure before removing or installing the electronic module.
- Inspect the module interface: Check the backplane contacts and terminal-module connection for contamination, damage, or signs of overheating.
- Install the module correctly: Seat the electronic module in the designated terminal-module position according to the system installation procedure.
- Verify field wiring: Check polarity, terminal assignments, conductor condition, and load connections before restoring power.
- Review output addressing: Confirm that the PLC program addresses the intended output channels and that the assigned signals correspond to the connected devices.
- Test each output channel: Verify both outputs individually and confirm that the associated field devices respond correctly to PLC commands.
- Investigate output faults systematically: If a load does not operate, check the load supply, output LED, wiring, actuator condition, and PLC command. Do not assume that a missing diagnostic message means the circuit is fault-free.
- Record the final configuration: Document the module order number, terminal-module arrangement, output assignments, connected loads, and commissioning results.
Compatible System Components
| Component | Function |
|---|---|
| SIMATIC ET 200S Interface Module | Connects the distributed I/O station to the PLC or fieldbus network |
| ET 200S Terminal Module | Provides the electrical interface for the electronic module |
| ET 200S Power Module | Supplies the required load voltage to the output group |
| 24 V DC Power Supply | Provides power for the associated control and load circuits |
| SIMATIC PLC CPU | Executes the program and generates output commands |
| Compatible PNP Field Actuators | Respond to the switched output signals |
| Interface Relays | Allow suitable loads to be controlled through an intermediate switching stage |
| Engineering Software | Supports hardware configuration and PLC output assignment |
| HMI or SCADA Interface | Displays operating states and application-generated alarms |
Recommended Related Models
| Model | Product Type | Main Application |
|---|---|---|
| Siemens 6ES7132-4BB31-0AA0 | ET 200S Digital Output Electronic Module, 2 DO, 24 V DC/2 A, Standard | Reference model for standard two-channel output control |
| Siemens 6ES7132-4BB31-0AB0 | ET 200S Digital Output Electronic Module, 2 DO, 24 V DC/2 A, High Feature | Two-channel output control with additional diagnostics |
| Siemens 6ES7132-4BB01-0AA0 | ET 200S Digital Output Electronic Module, 2 DO, 24 V DC/0.5 A, Standard | Lower-current output applications |
| Siemens 6ES7132-4BB01-0AB0 | ET 200S Digital Output Electronic Module, 2 DO, 24 V DC/0.5 A, High Feature | Lower-current output applications requiring additional diagnostics |
| Siemens 6ES7132-4BD00-0AA0 | ET 200S Digital Output Electronic Module, 4 DO, 24 V DC/0.5 A, Standard | Applications requiring four standard output channels |
| Siemens 6ES7131-4BB00-0AA0 | ET 200S Digital Input Electronic Module | Acquiring digital signals within the same distributed I/O family |
Key Advantages
- Provides two independent 24 V DC digital output channels.
- Supports loads rated up to 2 A per channel within the specified operating limits.
- Integrates into modular SIMATIC ET 200S distributed I/O stations.
- Provides short-circuit protection and local output-status indication.
- Offers a straightforward standard-function option for applications that do not require channel-level diagnostics.
Technical FAQs
What is the main difference between the 6ES7132-4BB31-0AA0 and the 6ES7132-4BB31-0AB0?
The 6ES7132-4BB31-0AA0 is the standard-function version, while the 6ES7132-4BB31-0AB0 is the High Feature variant. The High Feature version adds channel-level short-circuit and wire-break diagnostics and supports substitute-value handling. Select the version according to the application’s diagnostic requirements and existing station configuration.
Can the module directly control a 24 V DC solenoid valve?
Yes, provided the valve’s electrical characteristics are compatible with the module’s PNP sourcing output, current limits, and inductive-load switching requirements. Check the valve’s rated and inrush current, and account for the appropriate suppression arrangement where required.
Can both output channels be connected in parallel to operate a higher-current load?
No. The outputs must not be paralleled to increase current capacity. The module supports a maximum total output current of 4 A across its channels, but each channel must remain within its own specified operating limits.
What should be checked if the output LED is active but the field device does not operate?
Check the load supply, terminal wiring, polarity, actuator coil or input circuit, and the actual output voltage under load. Also verify that the PLC program is controlling the intended channel. The standard module does not provide the same channel-level wire-break and short-circuit diagnostics as the High Feature version.