The 6ES7141-5AH00-0BL0 is a 16-channel digital input module in the SIMATIC ET 200AL form factor that communicates via IO-Link, operating as a standalone device without the need for an ET 200AL backplane interface module. It connects to any IO-Link master compliant with the IO-Link specification, and an IODD file is available for integration into non-Siemens controllers.

How does the IO-Link variant differ from the standard ET 200AL backplane version?

The -0BL0 IO-Link variant draws supply from the IO-Link master's 1Us+ line (20 mA no-load, 2.4 W typical power loss), provides 0.7 A total encoder supply across eight sensor ports, and requires no ET 200AL PROFINET interface module. The standard -0BA0 backplane version (6ES7141-5AH00-0BA0) draws 30 mA from 1L+, delivers 1.4 A encoder supply, and supports safety-rated tripping up to PL d / SIL 2. Choose the IO-Link variant for standalone distributed input collection under any brand of IO-Link master; choose the backplane variant when integrating into a Siemens PROFINET architecture with functional safety requirements.

How are 16 inputs distributed across 8 M12 connectors?

Each M12 connector carries two independent digital input channels on separate pins, giving 16 inputs from 8 physical ports — a space-saving duplicate assignment that halves the cable count. All 16 channels can be active simultaneously up to 55°C in any mounting position. Input characteristic follows IEC 61131 Type 3, with 3.2 mA typical draw at signal "1" and 1.2–4.8 ms input delay in both directions.

Frequently Asked Questions

Can this module be used with a non-Siemens IO-Link master?

Yes. The 6ES7141-5AH00-0BL0 is a standard IO-Link device (VendorID 42, DeviceID 229380) with an IODD file for device description. Any IO-Link master compliant with the IO-Link specification can configure and operate it.

Does this module support safety-related tripping?

No. The IO-Link variant (-0BL0) does not support safety-rated tripping. If functional safety is required, use the standard backplane variant 6ES7141-5AH00-0BA0, which supports safety-rated tripping up to PL d / SIL 2 via the ET 200AL system.