Siemens 6ES7135-4FB01-0AB0 Replacement for ET 200S

Product Overview

Siemens 6ES7135-4FB01-0AB0 Replacement for ET 200S: Seamless Analog Output Upgrade

The Siemens 6ES7135-4FB01-0AB0 is a 2-channel analog output module designed for the ET 200S distributed I/O system, operating within the SIMATIC S7-300 and S7-400 automation architecture. As legacy ET 200S installations age and original spare parts become increasingly difficult to source, plant engineers and procurement teams face mounting pressure to secure reliable, drop-in replacements that preserve system continuity without triggering costly re-engineering cycles.

This listing provides a verified, in-stock replacement for the 6ES7135-4FB01-0AB0, sourced directly from authorized supply chains and tested prior to dispatch. Whether you are maintaining an existing ET 200S rack or executing a phased migration away from discontinued SIMATIC hardware, this module delivers the electrical and functional compatibility your system demands.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful ET 200S analog output replacement rarely involves a single module in isolation. In most field scenarios, the 6ES7135-4FB01-0AB0 sits within a populated ET 200S station alongside a range of companion modules that must remain operational throughout the swap. The interface module — typically an IM 151-1 or IM 151-3 PN — manages all PROFIBUS DP or PROFINET communication between the ET 200S station and the upstream S7-300 or S7-400 CPU. If the interface module is also aging or showing intermittent faults, it is advisable to assess its condition concurrently rather than discovering a secondary failure after the analog output has been replaced.

The terminal module beneath the 6ES7135-4FB01-0AB0 — such as the TM-AO2×U/I — retains all field wiring during a hot-swap or planned maintenance window, meaning the 4–20 mA or voltage signal cables to downstream actuators, control valves, or variable-frequency drives do not need to be disconnected. This wiring continuity is one of the key advantages of the ET 200S modular architecture and significantly reduces the risk of miswiring during replacement.

In stations where digital I/O is co-located, modules such as the 6ES7131-4BF00-0AA0 (8-channel digital input) or 6ES7132-4BF00-0AA0 (8-channel digital output) may share the same rack and power segment. The 6ES7138-4CA01-0AA0 power module within the ET 200S station should be verified to confirm it can sustain the combined current draw after the analog output module is reinstated. If the station has expanded over time, an additional PM-E power module may be required.

For sites running PROFINET-based architectures, the migration from an older PROFIBUS DP interface to a PN/DP coupler or a direct PROFINET interface module is a common parallel activity. In these cases, the GSD or GSDML device description file for the ET 200S station must be updated in the TIA Portal or STEP 7 project to reflect any hardware changes, including the re-parameterization of the analog output channels — output range, short-circuit response, and substitute value behavior.

Where the ET 200S station feeds signals into a SIMATIC S7-300 CPU 315-2 DP or CPU 317-2 PN/DP, the hardware configuration in STEP 7 or TIA Portal V16/V17 must match the physical slot assignment of the replacement module. Because the 6ES7135-4FB01-0AB0 is a like-for-like replacement, no slot reassignment is typically necessary, and the existing OB, FB, and DB structure in the PLC program remains valid. This dramatically reduces commissioning time compared to a platform migration.

For plants considering a longer-term migration from ET 200S to the newer ET 200SP platform, the 6ES7135-6HD00-0BA1 analog output module for ET 200SP represents the functional successor. However, ET 200SP uses a different base unit and terminal concept, requiring new DIN rail segments and updated GSDML files. For sites not yet ready for that level of change, maintaining the ET 200S platform with verified replacement modules like the 6ES7135-4FB01-0AB0 is the lowest-risk, lowest-downtime strategy.

Retrofit Guidance FAQ

Q: Does replacing the 6ES7135-4FB01-0AB0 require any rewiring?
A: No. The ET 200S terminal module retains all field wiring. The electronics module is removed and reinserted without disturbing the 4–20 mA or voltage signal cables connected to the terminal module.

Q: Will the existing STEP 7 or TIA Portal program need modification?
A: Not for a like-for-like replacement. The hardware configuration, I/O addressing, and analog scaling blocks remain valid. If the firmware version of the replacement differs, verify parameter compatibility in the module properties dialog.

Q: Is this module compatible with both PROFIBUS DP and PROFINET ET 200S stations?
A: Yes. The analog output module itself is interface-agnostic; communication protocol is determined by the IM 151 interface module installed in the station. The 6ES7135-4FB01-0AB0 is compatible with both PROFIBUS DP and PROFINET ET 200S configurations.

Q: What is the physical installation space requirement?
A: The module occupies a single ET 200S slot on the standard DIN rail assembly. No additional space is required beyond the existing slot vacated by the removed module.

Q: Can this module be used as a spare for multiple ET 200S stations on the same site?
A: Yes. The 6ES7135-4FB01-0AB0 is parameterized per station via the hardware configuration, so a single spare unit can serve as a universal replacement across all ET 200S stations using this module type.

Q: What substitute value behavior is supported during communication loss?
A: The module supports configurable substitute values (hold last value or output a defined substitute) set in the hardware configuration. This behavior is preserved from the original module’s parameterization.

Warranty Assurance

Every 6ES7135-4FB01-0AB0 unit dispatched by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each module undergoes functional verification including power-on testing, channel output verification across the full signal range, and backplane interface continuity checks. Units that do not meet specification are quarantined and not shipped.

In the event of a warranty claim, TOPNLMS provides a replacement unit or full refund within the warranty period. Our technical support team is available to assist with installation queries, parameter configuration guidance, and compatibility verification before and after purchase. Response time for warranty and technical inquiries is within one business day.

We maintain bonded stock of high-demand ET 200S modules to support urgent plant requirements. Express shipping options are available for critical breakdowns, with dispatch from our Xiamen warehouse typically within 24 hours of order confirmation. All units are shipped with original packaging where available, and include a test report upon request.

For volume procurement, OEM supply agreements, or consignment stock arrangements, contact our sales team directly to discuss pricing, lead times, and quality documentation requirements.