101605

Review the NC program line where the alarm occurs and identify the variable being accessed with array indexing brackets [ ].

Check the variable declaration section (DEF statement for local variables, or GUD definitions for global user data) to verify if the variable is declared as an array with proper dimensioning.

Correct the declaration by adding array dimensions, for example: change 'DEF REAL MYVAR' to 'DEF REAL MYVAR[10]' if array access is intended.

Reset the alarm, perform NC Start Disable reset if needed, and restart the program to verify the correction.

Open the NC program in the editor and search for the variable name referenced in the alarm to locate all usage instances.

Check if a DEF declaration exists at the beginning of the program/subroutine. For GUD variables, navigate to Settings > GUD > check the appropriate GUD file (GUD4.DEF, GUD5.DEF, etc.).

Add the missing array declaration with appropriate type and dimensions, for example: 'DEF INT COUNTER[5]' or add to GUD file and activate with Power On or GUD reset.

Modifying GUD files requires a control reboot or GUD initialization which may affect other programs using global variables.

Save changes, reset the program, and test the corrected program execution.

Examine the specific program line referenced in the alarm for proper array access syntax using square brackets [ ] with valid index expressions.

Verify that the array index is a valid expression (constant, variable, or calculation) and within the declared array bounds.

Check for typographical errors such as parentheses ( ) instead of brackets [ ], or missing closing brackets.

Correct the syntax error, save the program, reset the alarm, and re-execute the program block.