Xenta Programmable controller values read Failed to Read Signal

Issue

The values for programmable Xenta controllers display "Failed to Read Signal" in Vista Workstation.

Product Line

TAC Vista

Environment

  • Menta
  • Vista Workstation
  • Xenta 280, 281, 282, 283, 300, 301, 302, 401, 401:B
  • Xenta Server 701, 711, 721, 731

Cause

When Menta programming blocks that are specific to the 700 based menta are copied and pasted into regular menta, it will fail to complete a direct connect download. An error will pop up the reads "PARSER_CODE_ERROR". An example would be the RO output, that is a  700 based Menta programming block, being used in place of an AO output block in regular Menta.

When performing a normal download through the system plug-in or workstation, the Menta will appear to download successfully. It is this situation that the value column will read  "Failed to Read Signal" for all points.

Resolution

The correct programming blocks must be used in its corresponding type of Menta. It is a wise practice to not copy and paste 700 based Menta programming into any other programmable Xenta controller. This will avoid accidentally adding a point that is not compatible.