Siemens 6ES7151-1BA02-0AB0 | ET 200S Interface Module | New In Box

Siemens SIMATIC ET 200S — Interface Module IM 151-1 BA Catalogue Number: 6ES7151-1BA02-0AB0 | Also referenced as: 6ES71511BA020AB0

Product Classification

The 6ES7151-1BA02-0AB0 is a genuine Siemens IM 151-1 BA interface module for the SIMATIC ET 200S distributed I/O system. It functions as the communication head station of an ET 200S station, connecting the distributed I/O island to the higher-level automation controller via PROFIBUS DP. This module is a new, factory-sealed original Siemens unit — not refurbished, not remanufactured.

Technical Data Sheet

Parameter	Specification
Part Number	6ES7151-1BA02-0AB0
Alternate Reference	6ES71511BA020AB0
Manufacturer	Siemens AG
Product Family	SIMATIC ET 200S
Module Designation	IM 151-1 BA (Interface Module)
Communication Protocol	PROFIBUS DP (up to 12 Mbit/s)
Supply Voltage	24 V DC
Supply Current (typical)	Approx. 200 mA
Max. Number of I/O Modules per Station	Up to 63 modules
Max. Number of Power Modules	Up to 64
Isochronous Mode	Supported
Consistent Data Transfer	Yes
Dimensions (W × H × D)	30 mm × 196 mm × 120 mm (approx.)
Operating Temperature	0 °C to +60 °C
Storage Temperature	−40 °C to +70 °C
Relative Humidity	95 % (non-condensing)
Protection Class	IP20
Mounting	35 mm DIN rail (S7-300 compatible profile)
Configuration Software	STEP 7 (HSP required for older versions)
Standards Compliance	CE, UL, cUL, IEC 61131-2
Condition	New, Factory Sealed
Stock Status	In Stock — Ready for Dispatch

Note: For detailed electrical parameters, timing diagrams, and firmware requirements, please refer to the official Siemens ET 200S System Manual (A5E00065759) and the IM 151-1 BA device manual.

Functional Description

The Role of an Interface Module in an ET 200S Station

The ET 200S system follows a modular, distributed architecture. Each ET 200S station consists of:

One interface module (IM) — the head station that handles fieldbus communication
One or more power modules (PM) — providing 24 V DC supply to I/O modules
I/O modules — digital inputs/outputs, analog modules, technology modules

The 6ES7151-1BA02-0AB0 fulfils role 1. It establishes and maintains the PROFIBUS DP connection between the ET 200S station and the S7 controller (typically an S7-300, S7-400, or S7-1500 with PROFIBUS interface). All cyclic and acyclic data exchange between the field I/O and the PLC passes through this module.

Communication Architecture

The IM 151-1 BA supports PROFIBUS DP at transmission speeds up to 12 Mbit/s, enabling deterministic, high-speed data exchange in time-critical automation applications. It supports isochronous mode for applications requiring synchronised I/O response, and handles consistent data transfer across multi-byte process image areas.

The PROFIBUS address of the ET 200S station is set directly on the interface module via an integrated address selector, requiring no additional addressing hardware.

Typical System Integration

The 6ES7151-1BA02-0AB0 is deployed wherever an ET 200S station needs to be connected to a PROFIBUS DP network. Representative integration scenarios include:

Machine-Level Distributed I/O Mounted in control cabinets or field junction boxes close to the machine, replacing long cable runs from a central PLC rack with short local wiring. The ET 200S station handles local I/O; the IM 151-1 BA transmits data to the central controller over PROFIBUS.

Replacement of Failed Interface Modules The interface module is a single point of failure for the entire ET 200S station. A failed IM causes the complete station to go offline. Replacement with a genuine new 6ES7151-1BA02-0AB0 restores the station to full operation without hardware reconfiguration in most cases.

Spare Parts Inventory for Production Lines Maintenance engineers responsible for production lines built on ET 200S / PROFIBUS DP architecture routinely stock one or more IM 151-1 BA modules to ensure rapid recovery from fieldbus station failures.

System Expansion Adding a new ET 200S station to an existing PROFIBUS DP network when expanding production capacity or adding new machine functions.

Industry Applications

The ET 200S with IM 151-1 BA interface is well established across a broad range of European and international industrial sectors:

Automotive manufacturing — body shop, paint line, and powertrain assembly automation with PROFIBUS DP backbone
Mechanical engineering (Maschinenbau) — OEM machine builders integrating ET 200S stations into standard machine architectures
Food & beverage processing — distributed I/O for filling, packaging, and conveying systems in hygienic production environments
Chemical & pharmaceutical production — process automation where reliable, deterministic fieldbus communication is essential
Energy & utilities — substation automation, turbine control, and grid-connected systems using S7 / ET 200S architectures
Intralogistics & material handling — conveyor systems, sorters, and automated storage with distributed control nodes

Compatibility Notes

The 6ES7151-1BA02-0AB0 (IM 151-1 BA) is compatible with:

SIMATIC S7-300 CPUs with integrated PROFIBUS DP interface or CP 342-5 communication processor
SIMATIC S7-400 CPUs with PROFIBUS DP interface
SIMATIC S7-1500 with PROFIBUS DP interface via CM 1542-5 or CP 1543-5
ET 200S power modules and all standard ET 200S I/O modules

It is not compatible with PROFINET-only controllers without a PROFIBUS DP interface. If your system uses PROFINET exclusively, the correct module would be the IM 151-3 PN series. Please confirm your controller's fieldbus interface before ordering.

Why Specify a Genuine Siemens Module

European automation engineers and plant managers are generally sceptical of non-OEM industrial components — and rightly so for fieldbus interface modules. The 6ES7151-1BA02-0AB0 contains Siemens-specific firmware that governs PROFIBUS DP timing, diagnostic reporting, and isochronous mode behaviour. Non-genuine or incorrectly specified modules may cause:

Intermittent PROFIBUS DP bus errors
Loss of isochronous synchronisation
Incorrect or missing diagnostic information in STEP 7 / TIA Portal
Incompatibility with specific STEP 7 hardware support packages (HSP)

A genuine new Siemens unit eliminates all of these risks.

Ordering & Delivery

✅ Genuine Siemens OEM — New, factory sealed, never installed
✅ In Stock — Dispatches within 1–3 working days
✅ International Shipping — DHL / FedEx / UPS with full tracking; EU, UK, and worldwide
✅ Secure Packaging — ESD-protected and shock-resistant packaging for safe transit
✅ Technical Support — Pre-order compatibility and configuration advice available
✅ 15+ Years Specialisation — Dedicated supplier of Siemens SIMATIC components

Frequently Asked Questions

Q1: What is the Siemens 6ES7151-1BA02-0AB0 and what is its function? The 6ES7151-1BA02-0AB0 is the IM 151-1 BA interface module for the Siemens SIMATIC ET 200S distributed I/O system. It serves as the head station of an ET 200S island, establishing and maintaining a PROFIBUS DP connection between the local I/O station and the higher-level S7 controller. All process data — inputs from sensors and outputs to actuators — passes through this module between the field level and the controller level.

Q2: Which PROFIBUS DP baud rates does this module support? The IM 151-1 BA supports PROFIBUS DP at all standard baud rates up to 12 Mbit/s, including 9.6 kbit/s, 19.2 kbit/s, 93.75 kbit/s, 187.5 kbit/s, 500 kbit/s, 1.5 Mbit/s, 3 Mbit/s, 6 Mbit/s, and 12 Mbit/s. The baud rate is set automatically by the master controller during network initialisation.

Q3: How is the PROFIBUS DP address set on this module? The PROFIBUS DP station address is configured using an integrated rotary address selector directly on the IM 151-1 BA module. Addresses can be set in the range 1–99. No software tool is required for address assignment, which simplifies commissioning and replacement procedures.

Q4: How many I/O modules can be connected to one 6ES7151-1BA02-0AB0? A single ET 200S station with the IM 151-1 BA supports up to 63 I/O modules and up to 64 power modules. The maximum station width and power budget of the inserted modules must also be observed — consult the ET 200S system manual for detailed configuration rules.

Q5: Is the 6ES7151-1BA02-0AB0 compatible with SIMATIC S7-1500 controllers? Yes, but the S7-1500 CPU does not have a built-in PROFIBUS DP interface. To connect an ET 200S station with IM 151-1 BA to an S7-1500 controller, you need either a CM 1542-5 (PROFIBUS DP communication module) or a CP 1543-5 installed in the S7-1500 rack. Once a PROFIBUS DP master interface is present, the ET 200S station integrates normally.

Q6: What is the difference between IM 151-1 BA (6ES7151-1BA02-0AB0) and IM 151-3 PN? The IM 151-1 BA connects via PROFIBUS DP, while the IM 151-3 PN connects via PROFINET IO. These are completely different communication protocols and are not interchangeable. Your module selection must match the fieldbus technology used by your controller. If you are unsure which interface your system uses, check the controller's communication interface or contact us before ordering.

Q7: Does this module require special configuration in STEP 7 or TIA Portal? The ET 200S station with IM 151-1 BA is configured in SIMATIC Manager / STEP 7 (Classic) or via a hardware support package (HSP) in TIA Portal. The station is added to the PROFIBUS DP network in the hardware configuration, and I/O modules are assigned to process image areas in the usual manner. No special programming is required beyond standard STEP 7 HW Config procedures.

Q8: Is this a new module or has it been refurbished? This is a 100% new, factory-sealed original Siemens unit. It has never been installed, powered on, or returned for repair. It is supplied in original Siemens OEM packaging with all protective covers intact.

Q9: Is the module in stock and what are the lead times? Yes, the 6ES7151-1BA02-0AB0 is currently in stock. We dispatch within 1–3 working days. Standard international delivery is 5–10 working days to most European destinations. Express options via DHL or FedEx are available for urgent requirements — please contact us to arrange.

Q10: What happens if the IM 151-1 BA fails in an operational system? When the interface module fails, the entire ET 200S station loses communication with the PROFIBUS DP master. The S7 controller will report a station failure diagnostic and the outputs of all I/O modules in that station will go to their configured failsafe state (typically all outputs off). Replacing the IM 151-1 BA with a genuine new unit and restoring power to the station will restore communication; in most cases no re-configuration is required if the PROFIBUS address selector is set to the same address as the failed module.

Q11: Can I use the 6ES7151-1BA02-0AB0 as a replacement for earlier IM 151-1 BA hardware revisions? The 6ES7151-1BA02-0AB0 is the current hardware revision of the IM 151-1 BA and is generally backward compatible with earlier revisions in the same product series. However, firmware versions and hardware support package (HSP) requirements in STEP 7 may vary between revisions. We recommend verifying HSP compatibility with your installed STEP 7 version before deploying a replacement in a production environment.

Q12: What is your warranty and returns policy? All products are covered under our standard warranty. Full terms are available on our Refund Policy page. For any post-purchase technical or commercial queries, please contact our support team directly.

6ES7151-1BA02-0AB0 New In Box Siemens 6ES71511BA020AB0 6 Interface Module