Under specific circumstance sporadic access violation at a zenon-driver when a variable is removed or deleted and a reload is performed.

Under specific circumstance sporadic access violation at a zenon-driver when a variable is removed or deleted and a reload is performed.

Summary

When a variable from a process driver was moved to another driver or delete the variable and reloaded afterwards, than sometimes the driver was blocked and all variables were frozen.

Description

When a variable from a process driver was moved to another driver or delete the variable and reloaded afterwards, than sometimes the driver was blocked and all variables were frozen.

Solution

An issue was addressed at the actual value of a variable. Now it works proper and the actual value shadow will be freed correctly.

Information

Fixed on 04.11.2013, available from 7.10 SP0 Build 8129

Issue Number: 30775
Fixed on Date: 4.11.2013
Versions: 7.10 0 BUILD 8129
    • Related Articles

    • Checklist: Communication to TwinCat via BeckhoffNG driver

      Time estimate: 30 minutes Please go through all the points in the following checklist. If necessary, confirm with IT Department any information you cannot verify before contacting your local COPA-DATA Representative. TwinCAT ADS communication library ...
    • Checklist: Driver(s) cannot establish a reliable communication

      Time estimate: 60 minutes Please go through all the points in the following checklist. If necessary, confirm with IT Department any information you cannot verify before contacting your local COPA-DATA Representative. Checklist usage: #. [Quick hints] ...
    • After reload global advise variable can't be advise in driver

      Summary After reconfiguring variables between drivers and reloading advising no longer works. This behavior has been modified. Description After variables of a driver change and reloading a project, global variables no longer work. Cause: The ...
    • zenon Changesets CSV

      Here, you can access a comprehensive list of changes across all maintained versions of the zenon Software Platform as Excel Worksheets. This includes both implemented bug-fixes and new features. Additionally, these lists are available in as Excel ...
    • zenon Changesets Excel

      Here, you can access a comprehensive list of changes across all maintained versions of the zenon Software Platform as Excel Worksheets. This includes both implemented bug-fixes and new features. Additionally, these lists are available in CSV format ...