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- 6ES7132-4BF00-0AA0
- Digital Output Electronic Module
- Germany
- 15 × 81 × 52 mm
- 0.044 kg
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Product Overview
The Siemens 6ES7132-4BF00-0AA0 is an eight-channel digital output electronic module for the SIMATIC ET 200S distributed I/O system. It switches 24 V DC signals to field devices, allowing a PLC to operate multiple discrete loads through a remote I/O station. Typical applications include controlling solenoid valves, pilot relays, indicator lamps, and other low-current devices used in automated machinery.
With eight outputs in a single module, this unit is useful in control cabinets where several independent switching signals must be distributed to field equipment. A packaging machine, for example, may use individual channels to activate pneumatic valves, signal operating states, and control auxiliary mechanisms. The PLC handles the sequence logic, while the module performs the electrical switching at the I/O level.
The 6ES7132-4BF00-0AA0 uses sourcing PNP transistor outputs with a rated load voltage of 24 V DC and a nominal output current of 0.5 A per channel. Its total output current is limited to 4 A per module. Although short-circuit protection is provided, the standard version does not offer the additional module diagnostic functions found on the high-feature variant. Engineers should therefore distinguish between basic output protection and diagnostic reporting when selecting a replacement.
For maintenance teams working with existing ET 200S installations, the exact order number matters. The related 6ES7132-4BF00-0AB0 has additional diagnostic functionality, while the 6ES7132-4BF50-0AA0 uses a sinking output arrangement. These variants are not interchangeable solely on the basis of channel count or appearance; output polarity, field wiring, and control-system configuration must all be considered.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Product Type | Digital Output Electronic Module |
| Model | 6ES7132-4BF00-0AA0 |
| Product Family | SIMATIC ET 200S |
| Module Designation | 8DO DC 24 V/0.5 A |
| Number of Digital Outputs | 8 |
| Output Type | Sourcing transistor output (PNP) |
| Rated Load Voltage | 24 V DC |
| Rated Output Current | 0.5 A per output |
| Maximum Total Output Current | 4 A per module |
| Short-Circuit Protection | Yes |
| Module Diagnostic Functions | No |
| Channel Status Indication | Green LED per output |
| Maximum Switching Frequency, Resistive Load | 100 Hz |
| Maximum Switching Frequency, Inductive Load | 2 Hz |
| Maximum Switching Frequency, Lamp Load | 10 Hz |
| Maximum Cable Length | 600 m unshielded; 1,000 m shielded |
| Electrical Isolation | Between outputs and backplane bus; no isolation between individual output channels |
| Dimensions | 15 × 81 × 52 mm |
| Weight | 0.044 kg |
Product Features
- Eight independent output channels: Controls multiple discrete devices from one ET 200S electronic module.
- 24 V DC operation: Supports industrial field circuits using the specified load voltage.
- PNP sourcing outputs: Switches the positive supply voltage to compatible loads.
- 0.5 A nominal channel rating: Suits low-current switching applications within the module’s electrical limits.
- 4 A total current limit: Requires the combined load demand to be considered when several outputs operate simultaneously.
- Short-circuit protection: Helps protect the output circuitry under specified fault conditions.
- Individual status LEDs: Green indicators show the switching state of each output channel.
- Isochronous operation support: Supports time-synchronized operation in suitable ET 200S configurations.
- Distributed I/O integration: Connects field-level switching circuits to a compatible SIMATIC automation system.
Working Principle
The 6ES7132-4BF00-0AA0 receives output commands through the ET 200S backplane bus. When the PLC program activates a channel, the module’s PNP transistor output switches the positive 24 V DC supply to the connected load. When the command is removed, the output returns to its OFF state according to the module’s electrical characteristics.
The control sequence follows this path:
PLC Program → ET 200S Interface Module → Backplane Bus → Digital Output Module → Field Device
Consider a machine with several pneumatic actuators. The PLC may energize one output to operate a solenoid valve, activate another channel for a pilot relay, and use additional channels for auxiliary indicators. Each output follows its assigned control command, allowing the machine sequence to operate without requiring a separate output module for every low-current device.
The module incorporates short-circuit protection, but it does not provide the additional diagnostic reporting available on the high-feature version. The green channel LEDs are useful for checking switching status, although an illuminated LED alone does not confirm that the connected load is operating correctly. A broken wire, failed coil, incorrect common connection, or mechanical fault can still prevent the intended action.
Current distribution is another important consideration. Each channel has a nominal rating of 0.5 A, but the combined output current must not exceed 4 A per module. The switching frequency must also suit the connected load: the specified maximum is 100 Hz for resistive loads, 2 Hz for inductive loads, and 10 Hz for lamp loads. Solenoid valves and relay coils therefore require particular attention to their electrical characteristics and operating cycle.
Role in the SIMATIC ET 200S Control Architecture
Within a distributed automation station, the 6ES7132-4BF00-0AA0 converts controller output commands into electrical signals for field devices. The PLC executes the application logic, the ET 200S interface handles communication with the controller, and the output module switches the assigned loads.
SIMATIC PLC → ET 200S Interface Module → Backplane Bus → 6ES7132-4BF00-0AA0 → Field Devices
| System Component | Function |
|---|---|
| SIMATIC PLC | Executes control logic and determines the required output states |
| ET 200S Interface Module | Connects the distributed I/O station to the automation network |
| ET 200S Power Module | Supplies load voltage to the relevant output group |
| 6ES7132-4BF00-0AA0 | Switches eight 24 V DC digital output channels |
| ET 200S Terminal Module | Provides the electrical connections and mounting interface |
| 24 V DC Power Supply | Supplies the required control and load voltage |
| Solenoid Valves | Convert electrical commands into pneumatic or hydraulic valve movement |
| Pilot Relays | Provide an intermediate switching stage where required |
| Indicator Lamps | Display machine or process states through discrete output signals |
Correct operation depends on matching the output module to the terminal arrangement, field wiring, load characteristics, and configured PLC addresses. Because the individual output channels are not electrically isolated from one another, the common wiring arrangement must be suitable for the connected devices.
Industrial Applications
| Application | Typical Use |
|---|---|
| Packaging Machinery | Switching pneumatic valves, indicators, and auxiliary mechanisms |
| Automated Assembly Lines | Operating low-current actuators according to PLC sequence logic |
| Pneumatic Control Panels | Energizing compatible 24 V DC solenoid valve coils |
| Conveyor Systems | Controlling pilot relays and auxiliary discrete devices |
| Material Handling Equipment | Switching clamps, stops, and other low-current control functions |
| Industrial Test Stations | Activating indicators and discrete outputs during automated tests |
| General Manufacturing | Distributing multiple switching signals through a remote I/O station |
| Machine Auxiliary Circuits | Operating control devices that fall within the module’s current and switching limits |
The module is intended for discrete output switching rather than continuously variable analog control. Loads requiring higher current, different output polarity, or specialized diagnostic functions need a suitable alternative or an additional interface device.
Installation and Maintenance
- Verify the order number: Confirm that the module is 6ES7132-4BF00-0AA0 and that the application requires eight PNP sourcing outputs rated at 24 V DC/0.5 A.
- Isolate the electrical supply: Follow the site’s lockout procedure and isolate the relevant power sources before removing or installing the module.
- Check station compatibility: Verify the installed ET 200S interface module, power module, terminal module, and associated configuration.
- Review the wiring assignment: Identify all eight output channels and compare their connections with the electrical drawings before disconnecting the existing module.
- Inspect the terminal module: Look for damaged contacts, loose terminals, contamination, or other conditions that could interfere with the electrical connection.
- Confirm output polarity: Ensure the field devices are wired for PNP sourcing outputs and that the positive supply and common connections follow the intended circuit arrangement.
- Calculate the load current: Check each channel against its 0.5 A nominal rating and verify that the combined output current remains within the 4 A module limit.
- Check switching requirements: Compare the operating cycle and load type with the specified switching-frequency limits, particularly for relay coils and solenoid valves.
- Install the module correctly: Seat the electronic module in the designated ET 200S position and confirm that the mechanical connection is secure.
- Verify the PLC configuration: Check the configured module type, output addresses, and program assignments before returning the equipment to operation.
- Test each output channel: Restore power under the approved commissioning procedure and verify the LED indication, output voltage, wiring, and actual response of each connected device.
- Document the results: Record the installed order number, test results, wiring corrections, and any faults found during commissioning or maintenance.
If a channel fails to operate, check the PLC command, field wiring, common connection, power supply, and connected load before replacing the module. Short-circuit protection does not eliminate the need to correct the underlying electrical fault.
Compatible System Components
The 6ES7132-4BF00-0AA0 operates within the SIMATIC ET 200S distributed I/O platform. The following components are relevant to a typical installation, subject to the station’s configuration and electrical requirements.
| Component | Function |
|---|---|
| SIMATIC ET 200S Interface Module | Provides communication between the controller and distributed I/O station |
| ET 200S Power Module | Supplies load voltage to the associated output group |
| ET 200S Terminal Module | Provides electrical connections and mechanical mounting for the electronic module |
| SIMATIC PLC | Executes the automation program and controls output states |
| ET 200S Digital Input Module | Acquires discrete signals from switches and sensors |
| ET 200S Digital Output Module | Switches compatible field devices according to controller commands |
| 24 V DC Power Supply | Supplies the required voltage to the control and load circuits |
| Solenoid Valves and Pilot Relays | Serve as compatible loads for the digital output channels |
Recommended Related Models
| Model | Product Type | Relevance |
|---|---|---|
| Siemens 6ES7132-4BF00-0AB0 | SIMATIC ET 200S Digital Output Electronic Module | Eight-channel 24 V DC/0.5 A high-feature version with additional diagnostic functions |
| Siemens 6ES7132-4BF50-0AA0 | SIMATIC ET 200S Digital Output Electronic Module | Eight-channel sinking-output variant for applications with matching field wiring |
| Siemens 6ES7132-4BD00-0AB0 | SIMATIC ET 200S Digital Output Electronic Module | Four-channel high-feature output module with a different current rating |
| Siemens 6ES7132-4BD02-0AA0 | SIMATIC ET 200S Digital Output Electronic Module | Four-channel standard output module for related ET 200S applications |
| Siemens 6ES7131-4BF00-0AA0 | SIMATIC ET 200S Digital Input Electronic Module | Related eight-channel digital input module for acquiring field signals |
| Siemens 6ES7131-4BD01-0AA0 | SIMATIC ET 200S Digital Input Electronic Module | Related digital input module for discrete signal acquisition |
Key Advantages
- Eight digital output channels in a single ET 200S module.
- 24 V DC PNP sourcing outputs for compatible field devices.
- 0.5 A nominal output rating per channel, with a 4 A total module limit.
- Short-circuit protection and individual green status LEDs.
- Integration with compatible SIMATIC ET 200S distributed I/O stations.
Technical FAQs
How does the 6ES7132-4BF00-0AA0 differ from the 6ES7132-4BF00-0AB0?
Both models provide eight 24 V DC/0.5 A outputs, but the 6ES7132-4BF00-0AB0 is the high-feature version with additional diagnostic functions, including short-circuit diagnostics and an SF fault indicator. The 6ES7132-4BF00-0AA0 is the standard version and does not provide those module diagnostic functions.
Can all eight output channels draw 0.5 A at the same time?
No. Although each channel has a nominal output rating of 0.5 A, the total output current is limited to 4 A per module. The simultaneous load demand must be calculated when assigning devices to the channels.
Is the 6ES7132-4BF00-0AA0 suitable for directly switching solenoid valves?
It can switch compatible 24 V DC solenoid valve coils when their current demand and inductive switching characteristics remain within the module’s specifications. The maximum specified switching frequency for inductive loads is 2 Hz, so the actual valve duty cycle must be checked before use.
Can this module replace the 6ES7132-4BF50-0AA0 without changing the wiring?
Not necessarily. The 6ES7132-4BF00-0AA0 uses sourcing PNP outputs, whereas the 6ES7132-4BF50-0AA0 is a sinking-output variant. Their field circuit arrangements differ, so the wiring, load connections, and hardware configuration must be checked before considering a substitution.