Siemens ET 200SP Modules: 6ES7551-1AB01-0AB0

Technical Dossier

Product Details And Specifications

Siemens ET 200SP Series Technical Notes

The Evolution of ET 200SP Architecture

The ET 200SP platform was introduced as the successor to the ET 200S series, addressing the demand for higher channel density, reduced footprint, and native TIA Portal integration. Early hardware revisions (circa 2012-2014) established the BaseUnit concept - a passive carrier that separates wiring from the active module, enabling module replacement without rewiring. Subsequent generations introduced fail-safe (F) variants compliant with IEC 61508 SIL 2/3 and EN 954-1 Cat. 4, expanding applicability to safety-instrumented systems (SIS). The 6ES7551 sub-family specifically addresses high-speed digital I/O with integrated time-stamping, targeting applications requiring sub-millisecond event capture such as turbine control and protective relay coordination. Compatibility across generations is maintained through the BU-type BaseUnit system; however, mixing A0 and B0 BaseUnit variants requires verification against the hardware compatibility matrix in the ET 200SP system manual (6ES7151-8FB01-0AB0). Migration from ET 200S to ET 200SP requires re-engineering of the BaseUnit layer but preserves PROFINET address structures.

ET 200SP Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked modules within the Siemens ET 200SP product family, classified by functional category.

Digital Input (DI) Modules
6ES7131-6BF01-0BA0: DI 8x24VDC ST, 8-channel digital input, standard type, BaseUnit BU15-P16+A0+2D.
6ES7131-6BH01-0BA0: DI 16x24VDC ST, 16-channel digital input, high-density standard type.
6ES7131-6TF00-0CA0: DI 8x24VDC HS, high-speed digital input with hardware interrupt, 0.05 ms response.
6ES7131-6FF00-0BA0: F-DI 8x24VDC HF, fail-safe digital input, SIL 2/3 rated, PROFIsafe.

Digital Output (DO) Modules
6ES7132-6BF01-0BA0: DO 8x24VDC/0.5A ST, 8-channel transistor output, standard type.
6ES7132-6BH01-0BA0: DO 16x24VDC/0.5A ST, 16-channel transistor output, high-density.
6ES7132-6FD00-0BB1: F-DO 4x24VDC/2A PM HF, fail-safe digital output, SIL 2/3, 2A per channel.
6ES7132-6GD51-0BA0: DO 4x24VDC/2A HF, high-feature transistor output with diagnostics.

Digital I/O Combined & Time-Stamp Modules
6ES7551-1AB01-0AB0: DI/DO 8/8x24VDC HS with time-stamping, 1 ms resolution, PROFINET IRT, BaseUnit BU15-P16+A0+2D. Primary subject of this listing; used in event-driven control architectures requiring precise temporal correlation of I/O signals.
6ES7551-1AL02-0AB0: DI 16x24VDC HS with time-stamping, 16-channel high-speed input, 1 ms timestamp resolution.
6ES7551-1BL00-0AB0: DI 16x24VDC HS, alternate revision for time-stamp DI applications.

Analog Input (AI) Modules
6ES7134-6GD01-0BA1: AI 4xI 2-/4-wire ST, 4-channel current input, 0-20 mA / 4-20 mA, 16-bit resolution.
6ES7134-6HB00-0BA1: AI 4xRTD/TC 2-/3-/4-wire HF, thermocouple and RTD input, high-feature diagnostics.
6ES7134-6JD00-0CA1: AI 4xU/I/RTD/TC ST, universal analog input, configurable per channel.

Analog Output (AO) Modules
6ES7135-6GB00-0BA1: AO 4xU/I ST, 4-channel analog output, plus or minus 10V / 0-20 mA, 16-bit.
6ES7135-6HD00-0BA1: AO 2xU/I HF, 2-channel high-feature analog output with wire-break diagnostics.

Communication & Interface Modules
6ES7155-6AU01-0BN0: Interface Module IM 155-6 PN ST, PROFINET, supports up to 32 modules per station.
6ES7155-6AU00-0BN0: Interface Module IM 155-6 PN HF, PROFINET high-feature, IRT capable, MRP support.

Power Supply & BaseUnit
6ES7193-6BP00-0BA0: BaseUnit BU15-P16+A0+2D, light-colored, for standard modules, 15 mm width.
6ES7138-6CB01-0BA0: Power Module PM-E 24VDC ST, 24 VDC load group power supply for ET 200SP rail segments.