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6ES7540-1AB01-0AA0

S7-1500 RS422/485 Communication Module

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Technical specifications for 6ES7540-1AB01-0AA0

  • Product Model
    6ES7540-1AB01-0AA0
  • Spare Model
    6ES7540-1AB01-0AA0
  • Product Parameters
    S7-1500 RS422/485 Communication Module
  • Tariff Code
    85176200
  • Country of origin
    Germany
  • Place of shipment
    Xiamen, China
  • In stock
    1 unit
  • Estimated Shipping Size
    14.90 × 15.20 × 4.70 cm
  • Manufacturer
    Siemens
  • Weight
    0.22 kg
  • Product type
    CM PtP RS422/485 BA
  • Serial interfaces
    RS422 and RS485
  • Connector
    15-pin D-sub socket
  • Maximum transmission rate
    19.2 kbit/s
  • Maximum cable length
    1200 m
  • Integrated protocols
    Freeport, 3964(R), USS
  • Freeport telegram length
    1 kbyte maximum
  • 3964(R) telegram length
    1 kbyte maximum
  • Current consumption
    43 mA from backplane bus
  • Backplane power
    0.65 W

Description

Siemens 6ES7540-1AB01-0AA0 is a SIMATIC S7-1500 CM PtP RS422/485 BA communication module for serial point-to-point links. It supports Freeport, 3964(R) and USS protocols through a 15-pin D-sub interface at up to 19.2 kbit/s.
The module is powered from the S7-1500 backplane and supports cables up to 1200 m under documented interface conditions. It is intended for integrating serial field devices into S7-1500 or ET 200MP systems using verified interface parameters and communication instructions.

Information

Overview Manuals Product Applications Compatibility Lifecycle & Replacement

Features:

  • RS422 and RS485 serial communication
  • Freeport, 3964(R) and USS protocols
  • Transmission rates up to 19.2 kbit/s
  • Cable lengths up to 1200 meters
  • Fifteen-pin D-sub interface with diagnostics
Siemens 6ES7540-1AB01-0AA0 is an S7-1500 basic point-to-point communication module for RS422 and RS485 serial devices.

It provides a 15-pin D-sub serial interface, 19.2 kbit/s maximum transmission, 1200 m maximum cable length and integrated Freeport, 3964(R) and USS protocol support.

Verify interface type, pin assignment, termination, baud rate, frame format and protocol before connecting any RS422 or RS485 device.
Siemens 6ES7540-1AB01-0AA0 SIMATIC S7-1500 manuals and technical documentation. Important Notice: Official documents are provided through manufacturer links. Accessories, manuals, cables, calibration data, software, certificates, and other items are not included with this equipment unless listed in the stock item description.
  • RS485 communication with industrial measurement devices
  • USS communication with compatible variable-speed drives
  • Freeport serial links for legacy machine equipment
  • 3964(R) data exchange in automation cells
  • S7-1500 integration of existing serial devices
6ES7540-1AB01-0AA0 is used within SIMATIC S7-1500 automation systems where these application fields match the documented electrical, environmental and configuration requirements.

The module can operate centrally in SIMATIC S7-1500 or distributed through ET 200MP with a compatible interface module. Communication partners must match the selected RS422/RS485 electrical mode, protocol, baud rate and frame parameters.

Siemens lists the lifecycle status for 6ES7540-1AB01-0AA0 as Active product. Before replacement, confirm the complete order number, installed hardware version, wiring, engineering configuration and current Siemens documentation.

Alternative Names

6ES7540-1AB01-0AA0 SIMATIC S7-1500 CM PtP Module RS422 RS485 Communication Module

Technical notes

Confirm the complete 6ES7540-1AB01-0AA0 order number, S7-1500 or ET 200MP hardware, 15-pin RS422/RS485 wiring, supported protocol, baud rate, cable conditions and TIA Portal configuration before commissioning or replacement.

FAQs

  • Is 6ES7540-1AB01-0AA0 suitable for my existing Siemens system?

    +
    Suitability depends on the S7-1500 or ET 200MP hardware, TIA Portal configuration, RS422/RS485 interface, protocol, baud rate, cable and connected serial device. Confirm these items before ordering.
  • Can 6ES7540-1AB01-0AA0 directly replace my installed communication module?

    +
    Do not confirm replacement from the module appearance or family name alone. Compare the complete order number, hardware configuration, 15-pin interface, supported protocol, communication speed, wiring and project settings.
  • What information should I provide when requesting a quotation?

    +
    Provide the complete model number, quantity, nameplate and connector photos, installed CPU or ET 200MP interface, required serial standard, protocol, baud rate, cable length and destination country.
  • What should I check when the module arrives?

    +
    Check the exact Siemens label, housing condition, 15-pin D-sub connector and supplied items. Confirm the order number and electrical and interface requirements before removing the installed module.
  • What should be tested after installation?

    +
    Verify module recognition, hardware configuration, diagnostic status, RS422/RS485 wiring, baud rate, protocol settings and communication with the connected serial device before returning the system to service.
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