Preserves the submitted 6ES7288-1CR20-0AA0 string for traceable enquiry handling.
Product Overview
6ES7288-1CR20-0AA0 is preserved exactly as submitted. The reviewed Siemens documentation identifies the CR20s order number with a 0AA1 suffix, so the 0AA0 string should be confirmed from the physical label before procurement.
This page does not transfer CR20s 0AA1 ratings or I/O data onto the submitted 0AA0 identity. The exact CPU label, project and terminal photographs are required to resolve the selection safely.
A quotation or replacement decision should state whether the installed label truly ends in 0AA0 or whether the enquiry contains a transcription error.
Performance
Separates a possible suffix discrepancy from the documented CR20s product family.
Prevents electrical and I/O specifications from being copied from a similar order number.
Defines the minimum label, project and wiring evidence needed for a safe match.
Technical Details
System Integration
- Photograph the complete CPU label at high resolution, including the final suffix and approval marks.
- Export the project and record power supply, I/O terminal count, output technology and communications.
- Compare the confirmed order number with current Siemens documentation before selecting a spare.
- Do not install a candidate unit until hardware, wiring and project compatibility are approved.
Applications
- Order-number verification for an installed compact Siemens controller.
- Legacy maintenance where the last character is unclear on a worn or partial label.
- Procurement review before any 0AA1 product is proposed against a 0AA0 enquiry.
- Project and terminal reconciliation during planned controller replacement.
FAQ
Should 6ES7288-1CR20-0AA0 be changed to 6ES7288-1CR20-0AA1 automatically?
No. Preserve the submitted code and confirm the physical label; a likely catalogue alternative is not proof of the installed identity.
Which photograph best resolves a 6ES7288-1CR20-0AA0 enquiry?
Provide a sharp, straight-on image of the full Siemens order-number line plus wider photos showing supply and I/O terminals.
Can 0AA1 specifications be used for 6ES7288-1CR20-0AA0?
Not until the suffix is confirmed. Similar strings can represent revisions or simply an enquiry transcription error.
What project evidence should accompany 6ES7288-1CR20-0AA0?
Send the editable project, software version, CPU information screen if available, terminal map and connected-load list.
What must be approved before replacing 6ES7288-1CR20-0AA0?
Confirm the exact order number, supply, input and output architecture, physical fit, project support and machine safety behavior.
About IndustryParts
https://www.industryparts.com/Suffix confirmation prevents a wrong compact-CPU substitution
IndustryParts retains 6ES7288-1CR20-0AA0 as submitted and requests the physical label before proposing a documented Siemens alternative.
- 0AA0 string preserved
- No 0AA1 data transferred
- Label and project evidence required


