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• Fixed an issue where data quality was bad when using only symbolic addressing for a PAC Systems device.

• Improved performance of the PACSystems model by requesting bytes instead of byte per bit when reading symbolic variables that are in discrete memory.

• Corrected an issue that occurred when reading symbolic variables with the PACSystems model, where symbolic array and array element tags might not be included in the same request

• Enhanced the driver to support the reading of Symbolic addresses (for PACSystems devices) via multiple blocks within a single read packet, which dramatically improves the driver's read performance in large projects. Changed the default value of the Maximum Bytes Per Request device property from 256 to 2048.

• Enhanced the driver to support Bit-level access within Symbolic addresses within the PACSystems model selection of the driver. This change affects the following data types: BYTE, INT, UINT, WORD, DINT, DWORD, and array elements of those data types (in both discrete and non-discrete memory). Added new error messages for invalid bit index and invalid data type for bit access.

• Added support for %W addresses above 65,535 for the PACSystems model type.

• Added support to Read/Write Symbolic Variables that are mapped to reference addresses for the PACSystems model type.

• Resolved an issue where the driver was not locking a process thread correctly, which could cause the driver to stop issuing polls to devices.

• Fixed a data alignment issue that occurred when reading and writing symbolic discrete array variables.
  • Symbolic discrete array element tags require two symbolic information requests in order to calculate the start byte based on the base array address and the array index.
  • Recalculate the native data size of symbolic discrete array and array elements depending on data type.
  • Fail request and report warning message occur if the symbolic discrete array native data size exceeds the maximum request size (because it cannot be caught in the address parser).
  • Corrected a pre-existing issue in the tag import to force the "{" on array element tag addresses.
  • Handle nested symbolic discrete array variables.
  • Clear previously collected symbol information after an invalid PVT version.

Fixed an issue with importing tags from GE Proficy's tag database (.CSV and .SNF formats). The driver was failing to correctly import symbolic structure tags that were part of a ladder block.

• Fixed an issue wherein Symbolic Tags were being forced to Read/Write.

• Fixed issue where PACSystem UDT discrete data types were not being read or written properly.

• Fixed issue where PACSystem UDT Booleans were not being read or written properly

• Fixed issue where symbolic Float and Double tags were showing 1.#INF (invalid Float) instead of "0" value.
• Added new double addressing to hints
• Now allow for the alias tag data types that are specified as BOOL to assume the source tag data type.
• Fixed issue where address parsing of non-register, non-string memory types allowed a "-" in the address field.
• Added support for DOUBLE data types.