If the WorkPlace Tech Tool application file has been modified when you attempt to monitor a controller containing that application, blank or incorrect monitor tag values will be displayed.
WorkPlace Tech Tool software versions 5.0 through 5.8.2 or 5.8.6
MNL or MNB controller loaded with an application downloaded from WPT
Visio 2003, Visio 2007 or Visio 2010
There are two causes:
First, the WPT software, release 5.8.3, 5.8.4 or 5.8.5 will modify the application when it is opened making it appear to be different than the previously downloaded application
Second, failure to observe the following three constraints, regarding the application .vsd file will make the application file appear different than the application previously downloaded:
- The application file (.vsd) must not have been modified and/or re-saved in any version of the WorkPlace Tech Software since the application was downloaded.
- The application file (.vsd) must not have been modified directly in Visio and re-saved.
The application file (.vsd) must have been last saved, compiled and downloaded using any version of the WorkPlace Tech Tool software, 5.0 through 5.8.2 or 5.8.6, running in Visio 2003, 2007 or 2010.
An application downloaded to an MNL (or with the compatible WPT version, MNB) controller can be monitored provided that the application .vsd file has not been modified or re-saved after download and that the current version of the WorkPlace Tech Tool software, versions 5.0 through 5.8.2 or 5.8.6 (not versions 5.8.3, 5.8.4 or 5.8.5) is being is being used with a compatible version of Visio (2003, 2007 or 2010).
NOTE: For MNB controllers this applies only to WPT versions 5.7.0 through 5.8.2 and 5.8.6 as the earlier versions are not compatible with MNB application development.