What causes Siemens SINUMERIK alarm 12210?

STRING variable initialized with more than 100 characters in source code. Attempted assignment of a string longer than 100 characters to a STRING type variable. Incorrect variable declaration size in part program or custom macro. String literal or concatenation result exceeds 100 character limit for STRING type.

How do I fix Siemens SINUMERIK alarm 12210?

1. Locate the referenced block number %2 in the part program and identify the STRING variable declaration or assignment on line %3 2. Check the actual character count of the string value being assigned; count characters including spaces and special characters 3. If string exceeds 100 characters, either split into multiple STRING variables, use CHAR array type, or reduce the string content length 4. Verify variable declaration syntax matches Siemens 840D/828D STRING format and that no unintended characters were copied into the program 5. Clear the alarm, reload the corrected program, and verify syntax using the CNC editor's program check function before resuming execution

Siemens SINUMERIK codes

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Siemens SINUMERIK Controller

Servo/Axis · Basic · 15-30 minutes

Alarm 12210

Siemens 840D 12210 - Channel block string too long

- In the definition of a variable of type STRING, it has been attempted to initialize more than 100 characters. - In an allocation, it has been found that the string does not fit in the given variable.

Siemens SINUMERIKServo/AxisBasic15-30 minutes

12210

Siemens 840D 12210 - Channel block string too long

Channel block string too long

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Common Causes

STRING variable initialized with more than 100 characters in source code
Attempted assignment of a string longer than 100 characters to a STRING type variable
Incorrect variable declaration size in part program or custom macro
String literal or concatenation result exceeds 100 character limit for STRING type

Troubleshooting Steps

1Locate the referenced block number %2 in the part program and identify the STRING variable declaration or assignment on line %3
2Check the actual character count of the string value being assigned; count characters including spaces and special characters
3If string exceeds 100 characters, either split into multiple STRING variables, use CHAR array type, or reduce the string content length
4Verify variable declaration syntax matches Siemens 840D/828D STRING format and that no unintended characters were copied into the program
5Clear the alarm, reload the corrected program, and verify syntax using the CNC editor's program check function before resuming execution

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