楼宇自控技术trouble shooting-displays

1、Troubleshooting DisplaysUnable to find displayProblem:If Station connects successfully but cannot call up a display, it generally responds with the message: The display file xxx was not foundCause:The display filename was incorrectly typedThe display cannot be located in the Station or server displa

2、y pathsTo Resolve: Check the registry entry for the path for Station displays. See EBI Control Panel for information on using the EBI Control Panel utility to set or check the registry entry for display paths.Check the display paths specified in the Station Connection Properties under the displays t

3、ab Some point servers have displays that are not installed when Station is installed. For details of where to find these displays see your point server documentationDisplay calls up with scripting errorProblem:An error dialog appears similar to:Cause:Normally a mismatch between the displays on the s

4、erver and those on the clientTo Resolve:Ensure that the display used by the server is identical to this clientDisplay has other scripting errorProblem:A scripting error comes up when loading or using a displayProbable Causes:Often due to performing calculations or changes based on a field which is n

5、ot yet valid (contains - or ?)The script may refer to an element that has been deleted or renamed. Often happens when groups are broken and recreated.There is a mismatch between IFs and END IFs. Note ELSE IF is different to ELSEIF. ELSE IF treats the if seperately, so needs another END IF. That is:

6、IF ELSE IF END IF END IF, instead of IF ELSEIF END IFTo Resolve:If it has worked in the past, stop for a minute and think about what has changed. I know this is logical, but it is very often forgotten.Make your script more robustCheck that any value you are using in your script is the type you expec

7、t. e.g. Use IsNumeric(xxx.value) to check for numbersPut messageboxs in your script to see exactly where the error is occurring. (Dont forget to remove them again later)HMIWeb displays missing objectsProblem:Some objects on the display are missingCause:The subdirectory (filename_files) has not been

8、copied or is not up to dateTo Resolve:Copy this subdirectory from the displays directory where the file was created to all other clients/servers that need this display.DSP script does not work in .HTM Problem:VBScript that worked with the old Display Builder does not work with the new HMIWeb Display BuilderCause:Many methods and properties have changed between these file formats. This is due to HMIWeb using industry standard web elements and methods.To Resolve:Update your script to use the new methods by c