
6ES7550-1AA01-0AB0 SIMATIC S7-1500 Technology Module
This technology module supports high-speed counting tasks within the SIMATIC S7-1500 automation family. It features dual channels designed for incremental or pulse encoder inputs.
Quick Facts
- Part number
- 6ES7550-1AA01-0AB0
- Brand
- Siemens
- Category
- I/O Modules
- Product type
- TM Count 2x24V counter module
- Lifecycle
- Active Product
- Dimensions
- 19.4 x 16.1 x 4.7 cm
- Net weight
- 0.357 Kg
- Source category
- TM Count 2x24V counter module
Product Overview
The Siemens 6ES7550-1AA01-0AB0 is a dedicated technology module for the SIMATIC S7-1500 series. It provides specialized hardware capabilities for precise counting operations in industrial environments. Review Siemens 6ES7550-1AA01-0AB0 as TM Count 2x24V counter module with source category TM Count 2x24V counter module, recorded lifecycle Active Product, and submitted model identity.
Designed for robust performance, this unit integrates seamlessly into existing automation architectures. Engineers can utilize its dual-channel structure to manage complex signal processing requirements effectively.
Technical Review Notes
- This module operates as a TM Count 2x24V counter unit for the S7-1500 platform. Keep dimensions 19.4 x 16.1 x 4.7 cm and net weight 0.357 Kg unchanged while comparing project documents and product image evidence.
- It supports two distinct channels for connecting 24V incremental encoders or pulse encoders.
- Each channel includes three digital input points for additional signal monitoring and control.
- Digital output functionality is provided with two points per channel for actuator control.
- The physical footprint measures approximately 19.4 by 16.1 by 4.7 centimeters in size.
- Net weight is recorded at 0.357 kilograms, facilitating straightforward mounting and handling procedures.
Model Identification
- The part number 6ES7550-1AA01-0AB0 uniquely identifies this specific technology module configuration. Use the source path Automation technology / Technology modules / TM Count 2x24V counter module to confirm catalog context, model family, parameter review scope, and technical inquiry preparation notes.
- Normalization of the part number removes hyphens for consistent database indexing and search.
- The brand designation Siemens indicates the manufacturer responsible for this automation component design.
- Lifecycle status is listed as Active Product, confirming current manufacturing and support review details.
Technical Parameters
| Product type | TM Count 2x24V counter module |
|---|---|
| Lifecycle | Active Product |
| Dimensions | 19.4 x 16.1 x 4.7 cm |
| Net weight | 0.357 Kg |
| Source category | TM Count 2x24V counter module |
Parameters are factual source fields retained for model review.
Parameter Review
- Review the channel count to ensure it matches your dual-encoder application requirements. Check product-owned images, label text, connector area, and submitted model references against the exact 6ES7550-1AA01-0AB0 record before publication.
- Verify the 24V input voltage specification aligns with your sensor power supply setup.
- Check the digital input and output counts against your specific I/O mapping needs.
- Confirm physical dimensions fit within your cabinet space and DIN rail mounting constraints.
- Assess the net weight for logistics planning and structural load calculations during installation.
Catalog Classification
Image & Label Review
- Images typically show the front label displaying the full Siemens part number clearly. Review Siemens 6ES7550-1AA01-0AB0 as TM Count 2x24V counter module with source category TM Count 2x24V counter module, recorded lifecycle Active Product, and submitted model identity.
- Viewports may highlight the terminal blocks used for encoder signal connections on each side.
- Side profiles illustrate the compact form factor listed for dense control panel layouts.
- Rear views often depict the connector interface that links the module to the backplane bus.
Product Image Gallery

Inquiry Preparation
- Prepare your project documentation specifying the required quantity and intended application environment details. Keep dimensions 19.4 x 16.1 x 4.7 cm and net weight 0.357 Kg unchanged while comparing project documents and product image evidence.
- List any specific mounting accessories or cabling requirements needed for the encoder connections.
- Include relevant system integration notes regarding the SIMATIC S7-1500 CPU configuration used.
- Provide contact information for technical questions regarding the module's operational specifications and limits.
Category Context
This item falls under the broader Automation technology category for industrial control systems.
It is classified specifically within I/O Modules for specialized signal processing and counting tasks.
Review Notes
- Ensure all technical parameters are cross-referenced with your system design documentation accurately.
- Confirm that the active product status meets your long-term maintenance and support goals.
- Verify that the dual-channel capability satisfies the complexity of your current counting applications.
- Double-check physical dimensions against your rack layout to ensure proper mechanical fitment.



