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6ES7550-1AA01-0AB0

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Siemens 6ES7550-1AA01-0AB0 TM Count 2x24V counter module for SIMATIC S7-1500 encoder and pulse acquisition.
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Technical specifications for 6ES7550-1AA01-0AB0

  • Manufacturer:
    Siemens
  • Part Number:
    6ES7550-1AA01-0AB0
  • Product Family:
    Siemens Simatic S7-1500
  • Product Type:
    Technology Module
  • Stock:
    1
  • Counter Channels:
    2
  • Encoder Inputs:
    24 V incremental encoder or pulse encoder
  • Channel I/O:
    3 DI and 2 DQ per channel
  • Weight:
    0.357 kg
  • Estimated shipping dimensions:
    16.10 x 19.40 x 4.70 cm
  • Tariff Code:
    85389091
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Channel Planning Counting Setup Spare Integration

Features:

•Two counter channels for 24 V incremental encoders or pulse encoders
•Three digital inputs and two digital outputs provided per channel
•SIMATIC S7-1500 technology module for engineered counting applications

The Siemens 6ES7550-1AA01-0AB0 adds two 24 V counting channels to a SIMATIC S7-1500 station for compatible incremental or pulse-encoder applications.

Channel planning must account for the encoder signal, associated digital inputs and outputs, field wiring, and parameters stored in the controller project.

Siemens lists this exact article as active. Availability remains subject to Apter Power inventory and sourcing confirmation.

Availability is subject to Apter Power's current inventory and sourcing confirmation.

Siemens 6ES7550-1AA01-0AB0 SIMATIC S7-1500 TM Count 2x24V Specs

General

ManufacturerSiemens
Model6ES7550-1AA01-0AB0
ConditionNew and factory sealed
Product FamilySIMATIC S7-1500 TM Count 2x24V

Channel Planning

•Encoder application: Use the module with a compatible 24 V incremental encoder or pulse encoder.
•Channel count: The official configuration provides two counter channels.
•Digital points: Each channel includes three digital inputs and two digital outputs.
•Project check: Match channel assignments and field wiring to the approved S7-1500 project.

Counting Setup

•Signal match: Confirm that the selected encoder signal matches the TM Count 2x24V input.
•Channel allocation: Assign the two available channels according to the machine design.
•Control I/O: Coordinate the channel digital inputs and outputs with the application sequence.
•Commissioning: Verify live signals and controller diagnostics before releasing the counting function.

Spare Integration

•Identity: Match 6ES7550-1AA01-0AB0 to the installed label and hardware project.
•Configuration: Preserve the validated counter settings and channel assignments.
•Wiring: Document encoder and digital I/O connections before module removal.
•Acceptance: Test counting behavior and diagnostics after installation.
Description
6ES7550-1AA01-0AB0 is the Siemens SIMATIC S7-1500 TM Count 2x24V counter module with two channels for 24 V incremental encoders or pulse encoders. Each channel includes three digital inputs and two digital outputs.

6ES7550-1AA01-0AB0 supports counter and pulse-acquisition tasks that require channel-specific encoder signals and digital control points. The encoder type, wiring, channel assignment, and controller project must match the installed application.

6ES7550-1AA01-0AB0 should be ordered by its complete Siemens article number. Confirm the machine project, encoder interface, required quantity, and installed-module label before procurement or commissioning.
Alternative Names
6ES7550-1AA01-0AB0 6ES75501AA010AB0 6ES7550 1AA01 0AB0 6ES7 550-1AA01-0AB0 Siemens 6ES7550-1AA01-0AB0 SIMATIC 6ES7550-1AA01-0AB0 TM Count 2x24V S7-1500 counter module
Technical notes
Siemens 6ES7550-1AA01-0AB0 is the two-channel TM Count 2x24V module for compatible 24 V encoders. Verify the encoder signal, channel wiring, and controller project before ordering.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How can a buyer confirm that 6ES7550-1AA01-0AB0 matches the installed counter module?
Compare the complete article number on the module label and project record, then verify the encoder signal, channel wiring, and configured application before purchase.
What information should accompany a quote request for 6ES7550-1AA01-0AB0?
Provide quantity, destination, required condition, label photos, encoder type, controller project context, channel use, and whether an exact-model spare is required.
What should an engineer check if 6ES7550-1AA01-0AB0 shows no count values?
Check module seating and power, encoder wiring and signal, channel configuration, input assignments, application parameters, and controller diagnostics.
How can purchasing avoid confusing 6ES7550-1AA01-0AB0 with TM PosInput 2?
Verify the full article number, encoder application, project hardware entry, and installed-module label rather than ordering by the general technology-module name.
Which records should be preserved before replacing 6ES7550-1AA01-0AB0?
Preserve the approved controller project, channel assignments, encoder wiring, application settings, diagnostic records, and photos of the installed connections.
When is exact-model sourcing appropriate for 6ES7550-1AA01-0AB0?
It is appropriate when a validated machine configuration, standardized spare list, or change-control process requires the same article without project modification.
Which field evidence helps confirm a 6ES7550-1AA01-0AB0 for a pulse-counting repair?
Use the complete label, encoder signal type, terminal map, affected channel record, controller diagnostics, and clear condition photos.
How should maintenance describe an intermittent counting problem when requesting 6ES7550-1AA01-0AB0?
State which channel is affected, the connected encoder, observed diagnostics, wiring checks, project version, quantity, and required delivery destination.

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