6ES7540-1AB00-0AA0

SIMATIC S7-1500 CM PtP RS422/485 BA Communication Module

SIMATIC S7-1500 CM PtP RS422/485 BA Communication Module for point-to-point serial communication with rs422 or rs485 devices, supplied against the complete Siemens article number with installed-system compatibility checked before quotation.

BRANDSiemens

STOCK CONFIRMATIONIn Stock

CONDITIONBrand new and original

WARRANTY12 months

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Product overview

The Siemens 6ES7540-1AB00-0AA0 is a SIMATIC S7-1500 CM PtP RS422/485 BA Communication Module designed for point-to-point serial communication with rs422 or rs485 devices. Typical applications include barcode readers and scanners, serial instruments, legacy drive and controller links.

Selection must follow the complete Siemens article number and the installed hardware configuration. Before ordering, confirm rs422 or rs485 electrical mode, protocol, baud rate and telegram format, termination, cable and pin assignment, cpu, firmware and engineering library; a visually similar Siemens part is not automatically interchangeable.

COMMON APPLICATIONS

Installed-system context

Barcode readers and scanners
Serial instruments
Legacy drive and controller links

Tell us the controller, communication network and installed panel details. That context helps prevent a visually similar but incompatible replacement.

VERIFIED MODEL DATA

Technical specifications

Official documentation: Siemens official product record

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Manufacturer: Siemens
Article number / MPN: 6ES7540-1AB00-0AA0
Product designation: SIMATIC S7-1500 CM PtP RS422/485 BA Communication Module
Interface: RS422 / RS485
Telegram length: Up to 1 kB
Protocols: Freeport, 3964(R), Modbus RTU and USS according to configuration
Isolation: Backplane bus isolated from serial interface
Dimensions (W × H × D): 35 × 147 × 127 mm
Weight: Approx. 220 g
Lead time: In Stock

Technical values are compiled from official Siemens product documentation for this exact article number. Always check the delivered unit nameplate and revision before installation.

What to send for verification

• Complete Siemens article number and nameplate
• RS422 or RS485 electrical mode
• protocol, baud rate and telegram format
• termination, cable and pin assignment
• CPU, firmware and engineering library
• Required quantity, destination and condition

What your quotation will state

• Exact quoted article number
• New, surplus or refurbished condition
• Available quantity and estimated lead time
• Warranty and proposed shipping method

Confirm the complete Siemens MLFB, hardware revision, engineering project and installed-system compatibility before supply.

BUYER QUESTIONS

Frequently asked questions

What is the Siemens 6ES7540-1AB00-0AA0?

It is a SIMATIC S7-1500 CM PtP RS422/485 BA Communication Module used for point-to-point serial communication with rs422 or rs485 devices.

What should be checked before ordering?

Confirm the complete article number, then verify rs422 or rs485 electrical mode, protocol, baud rate and telegram format, termination, cable and pin assignment.

Can a visually similar Siemens device be used instead?

No direct interchange should be assumed. Hardware revision, firmware, signal type, interface, connector, rack, panel cutout and engineering project can differ even when the housings look similar.

What information is needed for a quotation?

Send the complete article number, quantity, destination, required condition and a clear nameplate photo. The quoted revision and lead time will be confirmed in writing.

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