Fieldbus Process Data Out Overflow (16-bit)
Vacon · 100 FLOW Application Guide
¿Qué significa 1312 ?
An overflow has occurred during the mapping and conversion of values for Fieldbus Process Data Out (specifically 16-bit values). This means that a value being transmitted is too large to be represented accurately within a 16-bit data format, leading to truncation or incorrect data. This can result in inaccurate control or monitoring feedback.
Causas comunes
- The value of a drive parameter mapped to a 16-bit Fieldbus Process Data Out exceeds the maximum representable value (e.g., >32767 for signed, >65535 for unsigned).
- An incorrect scaling factor (e.g., P4-10 for output scaling) is applied, causing the actual value to be inflated beyond 16-bit limits.
- Attempting to map a 32-bit internal drive parameter directly to a 16-bit fieldbus register without appropriate data handling.
- Internal calculation error within the drive producing an excessively large value for a mapped output parameter.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
1. Identify the specific Fieldbus Process Data Out parameter causing the overflow and its current value (e.g., via drive's local HMI or monitoring software).
- 2
2. Adjust the scaling factor for the affected Process Data Out (e.g., P4-10 for output scaling) to reduce the transmitted value to fit within 16-bit range.
- 3
3. If possible, change the fieldbus mapping in the PLC to use a 32-bit data type for the affected parameter if the fieldbus master supports it.
- 4
4. Verify the range of the internal drive parameter being mapped to ensure it is not inherently exceeding 16-bit limits.
- 5
5. Consider using a different, lower-resolution parameter for the fieldbus output if high precision is not critically required.