The 6ES7141-5AH00-0BA0 is a 16-channel digital input module in the SIMATIC ET 200AL form factor, designed for PROFINET or PROFIBUS integration via the ET 200AL backplane bus. It connects to the system through an ET 200AL interface module and supports safety-rated tripping of standard outputs up to PL d / SIL 2.

How does this backplane variant differ from the IO-Link version?

The -0BA0 backplane variant draws 30 mA from the 1L+ load voltage bus, delivers 1.4 A total encoder supply across eight sensor ports, and supports safety-rated tripping through the ET 200AL system. The IO-Link variant (6ES7141-5AH00-0BL0) operates standalone from any IO-Link master at 20 mA, provides 0.7 A encoder supply, and does not support safety tripping. Choose -0BA0 for Siemens PROFINET architectures with functional safety requirements; choose -0BL0 for vendor-agnostic IO-Link distributed input that needs no backplane interface module.

How does safety-rated tripping work on a standard module?

The 6ES7141-5AH00-0BA0 is a standard digital input module — not an F-module — but it supports safety-rated tripping of standard output modules via the ET 200AL system. In this configuration, the DI module reads sensor signals (e.g. light curtains, E-stops) and the system uses those inputs to de-energize standard output modules through the backplane bus, achieving PL d per ISO 13849-1 and SIL 2 per IEC 62061 when properly engineered.

Frequently Asked Questions

What interface module does this DI module require?

Any SIMATIC ET 200AL PROFINET or PROFIBUS interface module. The DI module itself has no bus intelligence — it communicates through the ET-Connection (M8, 4-pin, shielded) to the backplane, and the interface module handles the fieldbus protocol.

Can I mix IO-Link and standard ET 200AL modules in the same station?

Standard ET 200AL modules like the 6ES7141-5AH00-0BA0 connect via the ET 200AL backplane bus and require an interface module. IO-Link variants (-0BL0) are standalone devices that connect directly to an IO-Link master port — they do not use the ET 200AL backplane. You cannot daisy-chain them together on the same backplane segment, but they can coexist in the same machine when the IO-Link variant is connected to an IO-Link master port of the ET 200AL system or any other IO-Link master.