What causes Siemens SINUMERIK alarm 14615?

Invalid line number reference passed to PI service _N_SEL_BL during syntax check operation. Line number out of valid range for the current program block selection. Corrupted or incomplete part program with missing or non-sequential line numbers. Incorrect parameter values in syntax check function call via PI services. Memory or buffer overflow during part program parsing and validation.

How do I fix Siemens SINUMERIK alarm 14615?

1. Check the part program for valid line number sequences - verify all N-codes are within acceptable range and properly formatted according to ISO/DIN standards 2. Review recent program edits or uploads for syntax errors, particularly around block selection and line number definitions 3. Clear the part program buffer and reload the NC file from a known good backup copy 4. Verify PI service calls (_N_CHKSEL, _N_CHKRUN, _N_CHKABO, _N_SEL_BL) are using correct line number parameters - consult program documentation for valid ranges 5. If error persists, perform a machine restart and attempt syntax check on a simple test program to isolate whether the issue is program-specific or system-level

Siemens SINUMERIK codes

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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 30-60 minutes

Alarm 14615

Siemens 840D 14615 - Channel An error occurred while handling the function syntax check

An error occurred while handling the function syntax check via the PI services _N_CHKSEL, _N_CHKRUN, _N_CHKABO and _N_SEL_BL. Parameter describes the error situation more closely: Value 1: An invalid line number was transferred with the PI service _N_SEL_BL 2: An invalid line number for the range

Siemens SINUMERIKServo/AxisIntermediate30-60 minutes

14615

Siemens 840D 14615 - Channel An error occurred while handling the function syntax check

Channel An error occurred while handling the function syntax check

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Common Causes

Invalid line number reference passed to PI service _N_SEL_BL during syntax check operation
Line number out of valid range for the current program block selection
Corrupted or incomplete part program with missing or non-sequential line numbers
Incorrect parameter values in syntax check function call via PI services
Memory or buffer overflow during part program parsing and validation

Troubleshooting Steps

1Check the part program for valid line number sequences - verify all N-codes are within acceptable range and properly formatted according to ISO/DIN standards
2Review recent program edits or uploads for syntax errors, particularly around block selection and line number definitions
3Clear the part program buffer and reload the NC file from a known good backup copy
4Verify PI service calls (_N_CHKSEL, _N_CHKRUN, _N_CHKABO, _N_SEL_BL) are using correct line number parameters - consult program documentation for valid ranges
5If error persists, perform a machine restart and attempt syntax check on a simple test program to isolate whether the issue is program-specific or system-level

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