Siemens 6ES7136-6BA00-0CA0 Replacement for ET 200SP

Product Overview

Siemens 6ES7136-6BA00-0CA0 Replacement for ET 200SP: Seamless Failsafe Upgrade Solution

The Siemens 6ES7136-6BA00-0CA0 is a Failsafe Digital Input Module (F-DI 2×24VDC HF) designed for the ET 200SP distributed I/O system, rated to SIL 3 / PLe / Cat. 4 under IEC 62061 and EN ISO 13849-1. This module is the industry-standard choice for safety-critical applications in process automation, machine safety, and hazardous-area control systems where legacy failsafe I/O modules are reaching end-of-life or have been discontinued.

Whether you are migrating from an older ET 200S F-DI module, replacing a failed safety input card in an existing PROFINET-based safety architecture, or upgrading a control cabinet from a legacy S7-300 distributed I/O rack to a modern ET 200SP station, the 6ES7136-6BA00-0CA0 provides a direct, validated upgrade path with minimal re-engineering effort. Its compact BaseUnit mounting system eliminates the need for separate terminal blocks, and the push-in terminal design of the compatible BU-type BaseUnit (such as the 6ES7193-6BP00-0DA0) ensures wiring compatibility with existing field cable layouts in most retrofit scenarios.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful migration to the 6ES7136-6BA00-0CA0 typically involves coordinating several components within the same ET 200SP station or the broader PROFINET safety network. The interface module IM 155-6 PN HF (6ES7155-6AU01-0BN0) serves as the head station for the ET 200SP rack and must be present to host this F-DI module on the PROFINET segment. For stations requiring a power budget extension, a PM-E 24VDC power module (such as the 6ES7138-6CB01-0BA0) is inserted at appropriate intervals along the BaseUnit row to maintain stable 24 VDC supply across all I/O slices.

When replacing wiring from a legacy ET 200S installation, engineers often find that the existing 2-wire or 4-wire sensor cables can be re-terminated directly onto the new BaseUnit’s push-in connectors without re-pulling cables — a significant advantage in brownfield retrofits where conduit access is restricted. The 6ES7136-6BA00-0CA0 supports 1oo1 and 1oo2 evaluation modes, allowing the same physical wiring topology used on predecessor modules to be replicated in the TIA Portal F-program with minimal logic changes.

For projects that also involve upgrading the safety controller itself, this module integrates natively with the S7-1500F CPU (e.g., 6ES7516-3FN03-0AB0) running the F-runtime, as well as with the ET 200SP CPU 1512SP F-1 PN (6ES7512-1SK01-0AB0) for decentralized safety architectures. Communication between the F-CPU and the ET 200SP station uses standard PROFINET with PROFIsafe protocol layered on top — no additional safety fieldbus hardware is required.

In control cabinets where space is at a premium, the slim ET 200SP slice form factor allows engineers to replace bulky ET 200S or S7-300 SM modules with a denser arrangement. A typical 8-slot ET 200S rack can be replaced by a row of ET 200SP modules occupying roughly half the DIN rail length, freeing space for additional F-DO modules (such as the 6ES7136-6DC00-0CA0) or standard I/O expansion. Signal isolators or SITOP power supply modules previously required for legacy installations may also be eliminated when the ET 200SP backplane bus handles power distribution internally.

For sites still running PROFIBUS DP as the primary fieldbus, an IM 155-6 DP HF interface module can host the ET 200SP station on the existing PROFIBUS segment, allowing the 6ES7136-6BA00-0CA0 to be introduced without a full network migration. This hybrid approach is common in phased modernization projects where the safety I/O is upgraded first while the controller and fieldbus infrastructure are updated in a subsequent phase.

Retrofit Guidance FAQ

Q: Can I reuse existing field wiring from my ET 200S F-DI installation?
A: In most cases, yes. The 6ES7136-6BA00-0CA0 accepts standard 24 VDC 2-wire and 4-wire sensor connections. Verify cable cross-section compatibility with the BaseUnit’s push-in terminal rating (0.2–1.5 mm²). No re-pulling of field cables is typically required.

Q: Do I need to rewrite my safety program?
A: The F-DI function blocks in TIA Portal’s S7 Distributed Safety library are compatible across ET 200SP F modules. You will need to re-parameterize the module in TIA Portal (evaluation mode, discrepancy time, PROFIsafe address) and recompile the F-program, but the core safety logic structure remains unchanged.

Q: What PROFINET configuration is required?
A: The module is configured via the ET 200SP station’s PROFINET device in TIA Portal. Assign a unique PROFIsafe F-address (F_Dest_Add) matching the module’s hardware address switch setting. The IM 155-6 PN HF interface module handles all PROFINET communication; no additional gateway is needed.

Q: Is the module compatible with my existing S7-300 F-CPU?
A: The 6ES7136-6BA00-0CA0 requires a PROFINET-capable F-CPU (S7-300 PN/DP with F capability, S7-400F, S7-1500F, or ET 200SP CPU F). If your S7-300 CPU is PROFIBUS-only, use an IM 155-6 DP HF interface module to connect the ET 200SP station via PROFIBUS DP with PROFIsafe.

Q: How much DIN rail space does the module require?
A: The ET 200SP slice module itself is approximately 15 mm wide. The BaseUnit (sold separately) adds the terminal connection footprint. A full ET 200SP station with 16 I/O slices typically occupies less DIN rail space than an equivalent 8-slot ET 200S rack.

Warranty Assurance

Every Siemens 6ES7136-6BA00-0CA0 supplied by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each unit undergoes functional verification including power-on self-test, communication interface check, and visual inspection for physical integrity. Units are shipped in anti-static packaging with original labeling and documentation where available.

In the event of a confirmed defect within the warranty period, TOPNLMS provides replacement dispatch or full refund support with a target response time of 1–2 business days. Our technical team is available to assist with installation verification, TIA Portal configuration questions, and compatibility confirmation before purchase — reducing the risk of ordering errors in time-critical maintenance situations.

Stock is maintained in Xiamen, China, with express international shipping options available to minimize plant downtime. Typical lead time for in-stock units is 3–7 business days to most destinations. Bulk orders and emergency procurement requests are handled with priority scheduling.

For procurement inquiries, compatibility verification, or technical pre-sales support, contact our team directly before placing your order.