Siemens SIMATIC ET 200S Modules: 6ES7151-1AA03-0AB0

Technical Dossier

Product Details And Specifications

Siemens SIMATIC ET 200S Series Technical Notes

The Evolution of ET 200S Architecture

The ET 200S platform was introduced in the mid-1990s as a successor to the ET 200 compact series, addressing the demand for channel-level granularity in distributed I/O. The first-generation interface modules (IM151-1 BASIC, order ref. 6ES7151-1AA00-0AB0) supported PROFIBUS DP at up to 12 Mbit/s with a maximum of 63 power modules and electronic modules per station. Subsequent hardware revisions introduced expanded diagnostic capabilities, increased module counts, and support for isochronous mode (equidistant bus cycles) required by motion control applications.

The IM151-1 STANDARD variant (6ES7151-1BA02-0AB0 and later) added support for SYNC/FREEZE grouping and extended the station configuration to 244 bytes of I/O data. The IM151-3 PN series (e.g., 6ES7151-3AA23-0AB0) migrated the platform to PROFINET IO, enabling integration with TIA Portal V13 and above and supporting MRP (Media Redundancy Protocol) ring topologies. The IM151-8 CPU variants (e.g., 6ES7151-8AB01-0AB0) embedded a full S7-300 compatible CPU directly into the ET 200S head station, eliminating the need for a separate controller in distributed architectures.

Compatibility note: First-generation IM151-1 modules (AA00, AA01, AA02, AA03 firmware steps) share the same terminal module (TM-IM/IM, 6ES7193-4CA30-0AA0) and are electrically interchangeable within the same hardware generation. Mixing PROFIBUS and PROFINET head stations within a single ET 200S station is not supported.

ET 200S Full Catalog & Functionalities — SKU List

Interface Modules (IM151 — PROFIBUS DP)

• 6ES7151-1AA03-0AB0: IM151-1 BASIC interface module, PROFIBUS DP, max 12 Mbit/s, up to 12 electronic modules per station.
• 6ES7151-1AA05-0AB0: IM151-1 BASIC, firmware revision 5, extended diagnostic buffer, PROFIBUS DP.
• 6ES7151-1BA02-0AB0: IM151-1 STANDARD, PROFIBUS DP, SYNC/FREEZE support, up to 244 bytes I/O.
• 6ES7151-1BA03-0AB0: IM151-1 STANDARD, firmware revision 3, isochronous mode capable.
• 6ES7151-1CA00-0AB0: IM151-1 HIGH FEATURE, PROFIBUS DP, extended diagnostics, time stamping to 1 ms.

Interface Modules (IM151 — PROFINET IO)

• 6ES7151-3AA23-0AB0: IM151-3 PN, PROFINET IO, 100 Mbit/s, MRP ring support, IRT capable.
• 6ES7151-3BA23-0AB0: IM151-3 PN HIGH SPEED, PROFINET IO, IRT with sub-ms cycle times.
• 6ES7151-8AB01-0AB0: IM151-8 PN/DP CPU, embedded S7-300 CPU, PROFINET + PROFIBUS DP master.
• 6ES7151-8FB01-0AB0: IM151-8F PN/DP CPU, fail-safe CPU, SIL 3 / PLe capable, integrated F-runtime.

Digital Input Modules (DI)

• 6ES7131-4BB01-0AB0: 2DI, 24 VDC, standard, per-channel diagnostics.
• 6ES7131-4BF00-0AB0: 4DI, 24 VDC, standard input module.
• 6ES7131-4RD00-0AB0: 2DI, 120/230 VAC, for high-voltage field signals.
• 6ES7138-4FB03-0AB0: 2DI, fail-safe, 24 VDC, SIL 2 / PLd, F-DI module.

Digital Output Modules (DO)

• 6ES7132-4BB01-0AB0: 2DO, 24 VDC / 0.5 A, transistor output.
• 6ES7132-4BF00-0AB0: 4DO, 24 VDC / 0.5 A, standard output module.
• 6ES7132-4HB01-0AB0: 2DO, 24 VDC / 2 A, high-current transistor output.
• 6ES7138-4FB04-0AB0: 2DO, fail-safe, 24 VDC, SIL 2 / PLd, F-DO module.

Analog Input / Output Modules (AI/AO)

• 6ES7134-4GB01-0AB0: 2AI, ±10 V / 0–20 mA, 13-bit resolution.
• 6ES7135-4GB01-0AB0: 2AO, ±10 V / 0–20 mA, 13-bit resolution.
• 6ES7134-4NB01-0AB0: 2AI, HART-capable, 4–20 mA, for field instrument integration.

Power Modules (PM)

• 6ES7138-4CA01-0AA0: PM-E 24 VDC, power module for electronic modules, 10 A.
• 6ES7138-4CB11-0AB0: PM-E 24–48 VDC / 24–230 VAC, universal power module.

Quality Control for the ET 200S Range

ET 200S interface modules and electronic modules undergo a structured test protocol prior to dispatch. Each IM151-series head station is bench-tested on a live PROFIBUS DP segment at 1.5 Mbit/s and 12 Mbit/s to verify address recognition, diagnostic telegram generation, and module enumeration. Backplane bus integrity is confirmed by populating the station with a representative mix of DI, DO, and AI modules and executing a full I/O scan cycle.

Electronic modules are tested individually for channel-level functionality: DI modules are verified against 24 VDC stimulus signals; DO modules are load-tested at rated current; AI modules are calibrated against a traceable reference source across the full input range. Fail-safe (F) modules require additional verification of the F-address assignment and safety function response time. All test results are documented and shipped with the module. Modules that fail any test stage are quarantined and not offered for sale.