Siemens 6ES7135-4FB00-0AB0 SIMATIC DP ET 200S 2AO U Analog Output Module
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Product Information
The Siemens 6ES7135-4FB00-0AB0 is a two-channel analog voltage output module from the SIMATIC DP series, engineered for decentralized signal processing within the SIMATIC ET 200S I/O system. Powered by a 24 V DC supply, this analog output module delivers precise voltage signals across user-selectable ranges of ±10 V with 13-bit plus sign resolution and 1..5 V with 12-bit resolution. Featuring a compact 15 mm housing width and a fast conversion cycle time under 1 ms, it provides dynamic signal accuracy for demanding industrial applications such as drive speed reference control, proportional valve positioning, and process instrumentation.
Physical connection to field devices is managed via SIMATIC ET 200S terminal modules, including TM-E15S26-A1 and TM-E15C26-A1 modules. Integration into higher-level automation networks is achieved through ET 200S PROFIBUS DP interface modules such as the IM 151-1 or PROFINET interface modules like the IM 151-3. Bringing a replacement spare into service requires establishing the hardware configuration within SIMATIC STEP 7 or TIA Portal. When configured, automatic parameter upload capabilities from the head module streamline replacement procedures during field maintenance. ABC Industrial Parts can assist maintenance teams with sourcing and verifying spare units for existing ET 200S racks.
Hardware state and fault conditions are flagged directly on the module front panel by a red system fault LED labeled SF. This indicator signals group faults, including output short circuits to ground (M), parameter assignment errors, and internal electronic hardware failures. Deep diagnostic troubleshooting is supported by evaluating fieldbus diagnostic telegrams or reading diagnostic bytes via system function blocks SFB 54 (RALRM) or SFC 13 in the controller program. Initial checks should confirm field wiring integrity and load impedance; internal component failures are not field-serviceable, making module replacement or acquiring a tested exchange unit through ABC Industrial Parts the most reliable path back to full production.
Technical Specifications
| Manufacturer | Siemens |
| Part Number | 6ES7135-4FB00-0AB0 |
| Model / Type | SIMATIC DP Electronic Module 2AO U |
| Component Type | Analog Output Module |
| Product Family | SIMATIC DP |
| Series | ET 200S |
| Analog Outputs | 2 |
| Output Voltage Range | ±10 V / 1..5 V |
| Resolution | 14 bit (13-bit + sign / 12-bit) |
| Supply Voltage | 24 V DC |
| Backplane Bus Current Consumption | 10 mA |
| Load Current Consumption | 80 mA |
| Power Loss | 0.8 W |
| Cycle Time | 1 ms |
| Module Width | 15 mm |
Programming and Configuration
Engineering and parameter assignment for the 6ES7135-4FB00-0AB0 module are completed using SIMATIC STEP 7 or TIA Portal software. Within the hardware configuration tool, operators set parameters for each channel, specifying operating ranges of ±10 V or 1..5 V and setting diagnostic responses to suit system requirements.
In an operational SIMATIC ET 200S station, the module benefits from automatic parameter assignment handled by the station interface module. When a spare module is installed into an existing system, parameter settings are transferred automatically from the head module during startup, avoiding manual software reconfiguration on the field floor.
Communication and System Integration
The 6ES7135-4FB00-0AB0 connects to the ET 200S backplane bus, drawing 10 mA of backplane current for internal communication and bus interactions. External analog output wiring connects directly to compatible ET 200S terminal modules, such as the TM-E15S26-A1 with screw terminals or the TM-E15C26-A1 with spring-clamp terminals.
System integration to central automation controllers is maintained via standard ET 200S interface modules across PROFIBUS DP (e.g., IM 151-1) or PROFINET (e.g., IM 151-3). Diagnostic telegrams and active channel data flow over the fieldbus network, enabling real-time status tracking inside PLC user routines.
Diagnostics and Status Indication
The module features a front-panel red SF LED that provides immediate visual diagnostic indication for group faults. The SF LED illuminates solid or flashes during conditions such as output short circuits to ground, invalid parameter assignments, or internal module failures.
Detailed diagnostics are accessible in engineering environments via STEP 7 HW Diagnostics or TIA Portal Online & Diagnostics. The control program can also extract structured diagnostic bytes over the network using system function blocks SFB 54 (RALRM) or SFC 13.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| SF | Red - Solid / Flashing | Group fault / System error indicator. Illuminates on short circuit to ground at output, parameter assignment error, or internal module / hardware failure. |
Replacement and Spare Part Considerations
When installing a replacement 6ES7135-4FB00-0AB0 module, ensure it is seated correctly on a 15 mm ET 200S terminal module (TM-E15S26-A1 or TM-E15C26-A1). Hot-swapping support within the ET 200S platform allows physical exchange without disconnecting system power to adjacent rack modules.
Though discontinued by the manufacturer in October 2023, the 6ES7135-4FB00-0AB0 remains essential for maintaining legacy SIMATIC ET 200S systems. Because parameter assignment is stored in the head interface module, swapping in a replacement module allows system parameters to reload automatically upon startup, minimizing maintenance downtime.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| Diagnostic Bit 0 | Short circuit to M | Short circuit detected at the analog output channel to ground (M) | Faulty wiring, shorted signal line at output terminal, or connected load impedance too low. | Check external wiring and connected load at channel terminals. |
| Diagnostic Bit 4 | Parameter assignment error | Module received invalid configuration or parameterization data from head module. | Incorrect parameter settings configured in STEP 7 / TIA Portal or transmission error during startup. | Check hardware configuration parameters and re-download parameter settings to controller. |
| Diagnostic Bit 6 | Internal module fault | Module detected internal electronic hardware component failure. | Internal component breakdown or circuit board damage. | Internal hardware failure — replace the electronic module. |
Frequently Asked Questions
Which software packages are required to configure the Siemens 6ES7135-4FB00-0AB0?
The module is configured using SIMATIC STEP 7 or TIA Portal engineering software within the ET 200S station hardware configuration.
Which terminal modules are compatible with this analog output module?
The 6ES7135-4FB00-0AB0 is compatible with 15 mm ET 200S terminal modules TM-E15S26-A1 (screw terminals) and TM-E15C26-A1 (spring-clamp terminals).
What condition does the red SF LED indicate?
The red SF LED indicates a group fault, which can be caused by an output short circuit to ground, a parameter assignment error, or an internal hardware failure.
Is manual re-programming needed when replacing a faulty 6ES7135-4FB00-0AB0?
No, automatic parameter upload from the ET 200S head interface module loads configuration settings directly to the replacement module upon station startup.
What action should be taken if Diagnostic Bit 0 indicates a short circuit to ground?
Check external wiring connections, inspect the signal cable at the channel terminals, and verify that the load impedance connected to the output meets design requirements.
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Disclaimer:
We are not an authorised distributor of Siemens.
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