Your current location is
United Kingdom (£)
Want to ship parts to a different country? Use the drop-down menu below to navigate to the relevant site.


Marvo Part ID: MV-AUX1

£124.46 (ex. VAT)


Trustpilot Stars Qty
Express delivery guaranteed

If ordered within 00:00:00


You can return your part(s) and request a full refund at any time. Refer to our returns policy for more information.

Accepted payment methods:

Stripe logo Paypal logo Visa logo Mastercard logo American Express logo Bank Transfer logo

Stars Dan

‘The ordering was fast and efficient, and everything arrived just as they said it would.’

Stars Ms. Mia

‘Quick response, good item, delivery on schedule.’


Specification Description
Part Number 6ES7138-6BA00-0BA0
Alternative Part Number 6ES71386BA000BA0
Manufacturer Siemens
Description A Siemens Positioning Module designed for precise counter and position decoding applications. It operates with a 24 V dc supply and a current draw of 75 mA, and is compatible with the SIMATIC ET 200SP system.
Usage Utilised within the SIMATIC ET 200SP distributed I/O system for automation tasks that require accurate positioning and counting, such as in manufacturing and robotics.
Operating Voltage 24 V dc
Current Consumption 75 mA
Compatibility SIMATIC ET 200SP
Ambient Operating Temperature -40°C to +60°C (horizontal installation), -40°C to +50°C (vertical installation)
Installation Altitude Up to 5,000 m above sea level (with restrictions above 2,000 m)
Dimensions Width: 15 mm, Height: 73 mm, Depth: 35.3 mm
Commodity Code 85389091
Country of Origin - (Not specified)

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.


What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.


What countries can Marvo deliver to?

Marvo currently delivers to the United Kingdom (excluding Northern Ireland), the United States of America and Germany. If you cannot find your delivery address at checkout, this is most likely because Marvo does not currently deliver to this location. There are ongoing efforts to make Marvo accessible to a global market, keep your eyes peeled as our service expands to new locations. All orders are sold with a streamlined delivery process ensuring that you get your part, fast. Marvo is designed to offer you quick, easy and reliable access to critical components and uses well established global shipping services, including but not limited to DHL, UPS and FedEx.


Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.


Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.


How do I create an account?

Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.


Peace of mind with every purchase


Marvo Approved

A seal of quality that ensures each part is fully inspected, every time. Purchase with confidence thanks to Marvo Approved.


Full warranty

All parts are covered by a comprehensive warranty. If something goes wrong, I’ll put it right.


Priority delivery

Advanced tracking and a streamlined delivery process ensure that you get your part, fast.


Committed to you

Engineered to ensure that you always have a quick, easy and reliable place to source automation and control components.

6ES7138-6BA00-0BA0 Product Description

The Siemens Positioning Module 6ES7138-6BA00-0BA0 is a sophisticated counter and position decoder module designed to be used with the SIMATIC ET 200SP system. This module is engineered to offer precise and reliable positioning control for a wide range of industrial applications. It features a compact design that allows for efficient use of control cabinet space, making it an ideal choice for automation tasks where space is at a premium.

Equipped with robust digital outputs, the module provides transistor output types and includes two digital outputs that are parameterizable for tailored control. The module also offers short-circuit protection, ensuring durability and longevity in challenging industrial environments. With a maximum counting frequency of 4 MHz and the ability to handle both incremental and SSI encoders, this module delivers high-speed processing capabilities essential for tasks requiring rapid and accurate position detection.

The 6ES7138-6BA00-0BA0 module is also designed for easy integration into existing systems, supporting RS 422 and TTL 5V interfaces. Its isochronous mode ensures synchronisation with the application up to the terminal, and the module's diagnostic capabilities provide valuable feedback on the supply voltage, wire-break, short-circuit, and other critical parameters, enhancing system reliability and maintenance efficiency.

Overall, the Siemens 6ES7138-6BA00-0BA0 positioning module is a versatile and reliable component that offers precise control and diagnostics for a variety of positioning tasks, making it a valuable addition to any automated system.

Frequently Asked Questions

What is the purpose of the Siemens Positioning Module?

The Siemens Positioning Module is designed for precise position detection and control tasks. It's typically used in automation systems where accurate positioning is crucial, such as in conveyor systems, material handling, and machine tooling applications.

Can this module be integrated with different SIMATIC controllers?

Yes, the module is compatible with various SIMATIC controllers, including S7-1200, S7-1500, and S7-400, as well as standard PROFIBUS and PROFINET controllers, making it versatile for integration into a wide range of industrial automation systems.

What type of outputs does the module have?

The module is equipped with two digital transistor outputs that can be used for controlling external devices based on the positioning data.

Is the module capable of handling inductive loads?

Yes, the module can handle inductive loads, but it's important to observe the derating curve and the maximum switching frequency of 0.5 Hz for inductive loads as specified in the technical documentation.

What are the dimensions of the Siemens Positioning Module?

The module has a width of 15 mm, a height of 73 mm, and a depth of 58 mm, making it compact and suitable for space-constrained installations.

How does the module protect against short circuits?

The module features electronic and thermal short-circuit protection to safeguard against potential damage from overcurrent conditions.

What is the maximum resistive load the module's outputs can switch?

Each digital output of the module can switch a resistive load of up to 0.5 A.

Can the module's outputs be parameterized?

Yes, the digital outputs of the module are parameterizable, allowing for flexible configuration to meet specific application requirements.

What type of encoder signals can the module process?

The module can process incremental encoder signals with an RS 422 input voltage, suitable for various industrial applications.

What is the weight of the Siemens Positioning Module?

The module weighs approximately 45 grams, contributing to its ease of installation and integration into existing systems without adding significant weight.