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Product specification sheet

6ES7340-1AH02-0AE0Document: AV-REF-Siemens-6ES7340-1AH02-0AE0
Siemens6ES7340-1AH02-0AE0Product image is not available.

Siemens · PLC and HMI

Siemens S7-300 CP340 RS232 communications module / 6ES7340-1AH02-0AE0

Siemens S7-300 CP340 RS232 communications module; exact model specifications from ST70 2021. Confirm host configuration, revision, accessories and current availability before ordering.

Manufacturer part number
6ES7340-1AH02-0AE0
Brand
Siemens
Category
PLC and HMI
Catalog status
Request a quotation

Technical specifications

Controller family
SIMATIC S7-300
Interface
1 x RS232 C (V.24); isolated
Maximum transmission rate
19.2 kbit/s
Supply voltage
5 V via backplane bus; no external24 V supply
Protocol
ASCII;3964(R); printer driver;3964(R) not for RS485
Document pages
ST70 2021 PDF665 / printed5/177
Current lifecycle status
Not established by historical2021 catalogue; confirm current lifecycle and supply separately
Manufacturer technical catalog · Siemens ST70 2021; exact ordering/technical row PDF665 · en · PDF · ST70 2021Manufacturer source: Siemens · Model explicitly covered in family document · Covered models: 6ES7340-1AH02-0AE0 · Checked: 2026-10-22Official manufacturer source

This sheet provides a quick technical summary. For design, installation and final selection, review the latest official manufacturer documentation and verify the complete part number.