Siemens SINUMERIK codes
Siemens SINUMERIKServo/AxisIntermediate20-45 minutes

14096

Siemens 840D 14096 - Channel block illegal type conversion

Channel block illegal type conversion

During the program run, a variable value assignment or an arithmetic operation has caused data to be processed in such a way that they have to be converted to another type. This would lead to the value range being exceeded. Value ranges of the various variable types: - REAL: Property: Fractional num

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Common Causes

  • Variable assignment attempting to convert a value outside the target data type's range
  • Arithmetic operation result exceeds the maximum or minimum value for the target variable type
  • Implicit type conversion from REAL to INT with loss of precision or overflow
  • Array index or loop counter calculation producing out-of-range values
  • Comparison or mathematical operation between incompatible variable types without proper casting

Troubleshooting Steps

  1. 1Review the G-code at the specified block number in the program listing and identify the variable assignment or arithmetic operation causing the alarm
  2. 2Check the data types of all variables involved in the operation and verify they are appropriate for the values being assigned or calculated
  3. 3Verify that REAL to INT conversions are explicitly handled using type casting functions and that values remain within the INT range (-2147483648 to 2147483647)
  4. 4Examine loop counters, array indices, and arithmetic results to ensure they do not exceed the valid range for their declared data types
  5. 5Modify the program to use appropriate data types or add explicit type conversion with value range validation before execution

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