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- Siemens
- 6AG2135-6HD00-4BA1
- Analog Output Module
- Germany
- 15 × 73 × 58 mm
- 0.042 kg
- Xiamen, China
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Product Overview
The Siemens 6AG2135-6HD00-4BA1 SIPLUS ET 200SP Analog Output Module is a four-channel analog output module identified as AQ 4xU/I ST TX RAIL. Based on the standard 6ES7135-6HD00-0BA1, it converts digital control values from a PLC into analog voltage or current signals for connected industrial actuators. The SIPLUS version incorporates conformal coating and environmental qualifications for demanding applications, including specified railway environments.
The four output channels can be configured for supported voltage or current ranges, making the module suitable for applications that require multiple analog commands from a single distributed I/O station. Typical control tasks include adjusting proportional valve commands, supplying analog references to compatible drive equipment and regulating process variables through devices with voltage or current inputs.
As part of the SIMATIC ET 200SP architecture, the module connects to field wiring through a compatible BaseUnit and exchanges output data with the controller through the station’s interface module. Correct signal-range selection, wiring and actuator configuration are essential for accurate command generation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model / Order Number | 6AG2135-6HD00-4BA1 |
| Product Family | SIPLUS ET 200SP |
| Product Type | Analog Output Module |
| Detailed Product Designation | AQ 4xU/I ST TX RAIL |
| Standard Base Model | 6ES7135-6HD00-0BA1 |
| Number of Analog Outputs | 4 |
| Output Signal Types | Voltage and current |
| Voltage Output Ranges | 0–10 V, 1–5 V, -5–+5 V, -10–+10 V |
| Current Output Ranges | 0–20 mA, 4–20 mA, -20–+20 mA |
| Maximum Resolution | 16 bit, including sign where applicable |
| Operational Limit | 0.5% |
| Rated Supply Voltage | 24 V DC |
| Permissible Supply Voltage | 19.2–28.8 V DC |
| Maximum Permissible Output Voltage | 30 V |
| Maximum Address Space | 8 bytes per module |
| Compatible BaseUnits | BU type A0, A1 |
| Color Code | CC00 |
| Diagnostics | Missing load voltage, short circuit, overflow, underflow and wire break |
| Environmental Protection | Conformal coating |
| Operating Temperature | -40°C to +70°C for horizontal installation |
| Short-Duration Temperature Limit | +85°C for 10 minutes under specified conditions |
| Dimensions | 15 × 73 × 58 mm |
| Weight | 0.042 kg |
Product Features
- Four analog output channels: Generates multiple voltage or current commands for compatible actuators within one distributed I/O station.
- Configurable signal ranges: Supports common industrial setpoints, including 0–10 V and 4–20 mA.
- Standard output functionality: Provides analog output operation for general automation tasks without requiring the high-speed functions of specialized output modules.
- Channel diagnostics: Helps identify output faults, missing load voltage and signal-range errors.
- Conformal coating: Adds protection for electronic assemblies in qualified environmental conditions.
- TX RAIL environmental qualification: Supports specified railway and demanding industrial environments under the applicable installation conditions.
- Modular ET 200SP integration: Uses a compatible A0 or A1 BaseUnit within the distributed I/O station.
- Flexible actuator interfacing: Supports voltage- and current-controlled devices when their input requirements match the configured output range.
Working Principle
The module receives digital output values from the PLC and converts them into analog electrical signals. Each channel is configured for the signal type and range required by the connected device. For example, a controller can calculate a valve command or drive reference and send the corresponding value to the output module.
For voltage-controlled equipment, the module generates a voltage within the selected range. For current-controlled equipment, it generates a current signal such as 4–20 mA. The connected actuator or controller interprets this signal as a command for the relevant operating variable, such as valve position, flow or drive reference.
The module’s diagnostic functions help identify conditions that can interfere with normal output operation. Depending on the configured application, faults such as wire breaks, short circuits or missing load voltage can be reported for troubleshooting.
Reliable operation depends on correct signal configuration and field wiring. A mismatch between the module’s output range and the receiving device can cause incorrect scaling or an unexpected actuator response. The controller’s engineering configuration must therefore correspond to the actual electrical interface of each connected load.
Role in a SIPLUS ET 200SP Control Architecture
The 6AG2135-6HD00-4BA1 serves as the analog command-output layer in a distributed automation system. It translates controller-generated values into electrical signals that connected field devices can use to adjust process conditions.
| System Component | Function | Relationship to the Module |
|---|---|---|
| SIMATIC PLC | Executes control logic and calculates output commands | Supplies digital setpoints to the output module |
| ET 200SP Interface Module | Connects the distributed I/O station to the automation network | Transfers output data from the controller |
| SIPLUS ET 200SP Analog Output Module | Converts digital values into analog signals | Generates up to four configured voltage or current outputs |
| ET 200SP BaseUnit | Provides mounting and field-wiring connections | Supports the module’s electrical interface |
| Proportional Valve or Valve Controller | Adjusts flow or pressure in response to a command | Receives a compatible analog output where supported |
| Drive Controller | Regulates motor operation | Can use a voltage or current reference if its input supports it |
| Process Control Device | Adjusts a continuously variable operating parameter | Responds to the module’s analog command |
| HMI / SCADA System | Displays operating data and alarms | Allows operators to monitor the wider control process |
Industrial Applications
| Application | Control Task | Role of the Module |
|---|---|---|
| Proportional Valve Control | Adjusting valve position, flow or pressure | Generates analog commands for compatible valve interfaces |
| Drive Reference Control | Supplying an analog reference to a drive controller | Provides the required voltage or current signal where supported |
| Industrial Process Regulation | Adjusting continuously variable process parameters | Converts controller calculations into analog output signals |
| Distributed Machine Automation | Controlling multiple field devices from a remote I/O station | Provides four analog output channels within the ET 200SP system |
| Railway Automation | Controlling analog devices in qualified railway installations | Adds SIPLUS environmental qualifications for specified rail applications |
| Industrial Control Panels | Sending analog commands to field equipment | Integrates actuator control into a modular automation architecture |
Installation and Maintenance
- Verify the order number: Confirm that 6AG2135-6HD00-4BA1 matches the required four-channel SIPLUS analog output application.
- Check the BaseUnit type: Use a compatible BU type A0 or A1 and verify the terminal arrangement before mounting the module.
- Identify the receiving devices: Confirm the input signal type and permitted range for each connected actuator or controller.
- Isolate the equipment: Follow the applicable electrical isolation and lockout procedures before wiring or replacing the module.
- Verify field wiring: Match each actuator connection to the correct output channel and terminal assignment.
- Configure the output range: Select the required voltage or current range for each channel in the engineering configuration.
- Check load requirements: Confirm that the connected devices’ electrical characteristics are suitable for the selected outputs.
- Inspect the supply connections: Verify the module supply and load-voltage arrangements according to the applicable wiring diagram.
- Review diagnostic settings: Check the configured diagnostic functions and ensure that relevant faults can be identified by the controller.
- Check environmental conditions: Ensure that installation orientation, temperature and environmental exposure remain within the specified limits.
- Validate output signals: Measure the output signals during commissioning and compare them with the controller’s commanded values.
- Document the configuration: Record channel assignments, signal ranges, connected devices and maintenance findings for future troubleshooting.
Compatible System Components
| Component | Function | Compatibility Consideration |
|---|---|---|
| ET 200SP BaseUnit BU type A0 | Provides module mounting and electrical connections | Listed as a suitable BaseUnit type |
| ET 200SP BaseUnit BU type A1 | Provides an alternative supported connection arrangement | Listed as a suitable BaseUnit type |
| ET 200SP Interface Module | Connects the I/O station to the controller network | Select according to the required station architecture |
| SIMATIC PLC | Generates output commands and executes control logic | Must support the configured ET 200SP station |
| Proportional Valve Controller | Converts an analog command into valve actuation | Match the controller’s input requirements to the selected output |
| Drive with Analog Reference Input | Uses an analog command for drive control | Confirm signal type, range and scaling |
| Industrial Process Controller | Accepts an analog reference to regulate a process variable | Verify the electrical input specifications before connection |
Recommended Related Models
| Model | Product Type | Relationship | Selection Consideration |
|---|---|---|---|
| Siemens 6ES7135-6HD00-0BA1 | ET 200SP AQ 4xU/I ST Analog Output Module | Standard base model for the SIPLUS version | Compare environmental qualifications and installation requirements |
| Siemens 6AG2135-6HB00-1DA1 | SIPLUS ET 200SP AQ 2xU/I HS Analog Output Module | Related two-channel high-speed output module | Consider when high-speed or oversampling functions are required |
| Siemens 6AG2135-6HB00-2DA1 | SIPLUS ET 200SP AQ 2xU/I HF Analog Output Module | Related two-channel high-feature output module | Compare channel count and required output functions |
| Siemens 6AG2193-6BP20-4DA0 | SIPLUS ET 200SP BaseUnit A0 | Related BaseUnit product | Confirm the exact BaseUnit variant and terminal arrangement for the installation |
Key Advantages
- Provides four analog output channels for controlling compatible field devices.
- Supports a range of common voltage and current command signals.
- Includes diagnostic functions to assist with fault identification.
- Integrates into the modular SIMATIC ET 200SP distributed I/O architecture.
- Uses conformal coating and specified environmental qualifications for demanding applications.
- Supports qualified railway installations under the applicable TX RAIL conditions.
Technical FAQs
How many actuators can the 6AG2135-6HD00-4BA1 control through analog signals?
The module has four analog output channels. It can provide up to four independent analog commands when the connected devices and application configuration support the required signal types and ranges.
Which voltage and current ranges are supported?
Supported voltage ranges include 0–10 V, 1–5 V, -5–+5 V and -10–+10 V. Supported current ranges include 0–20 mA, 4–20 mA and -20–+20 mA. Each channel must be configured to match its receiving device.
What does TX RAIL indicate for this SIPLUS module?
TX RAIL identifies a SIPLUS variant with environmental qualifications for specified demanding conditions, including designated railway applications. Installation conditions and applicable temperature limits must follow the module’s qualification requirements.
What should be checked if an output channel does not produce the expected command?
Check the configured output range, controller setpoint, terminal assignment, field wiring and receiving device’s input requirements. Review diagnostic indications for conditions such as wire break, short circuit or missing load voltage before replacing the module.