Troubleshooting steps
Load missing OB check OB number verify program structure
Siemens PLC
2555 – OB error
Organization block error
Details
OB error 2555. Check organization block configuration.
Error typeerror
MeaningOB error
Typical causesOB not loaded incorrect OB number block error
SolutionsLoad missing OB check OB number verify program structure
Severityhigh
Catalog references
Vendor Information
Siemens2555
Utilities
Troubleshooting Steps
Related
Related Siemens PLC Codes
FAQ
Common questions
What is an OB?
Organization blocks are program blocks called by the operating system
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Discussion & Experiences
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