Local Message Display Properties - Connections tab

The following table shows the options in the
Connections
tab of
Local Message Display Properties
.
Options
Description
Value
Assign a tag or expression to this connection. It will be monitored for values that trigger messages.
Message File
Assign a string tag or expression that will be used as the message file. To use this option, select the
Use variable message file
 check box on the
General
 tab.
Echo Message
Assign a tag that the triggered message will be written to. To use this option, select the
Use echo message
 check box on the
General
 tab.
The following table shows the columns in the
Connections
tab.
Options
Description
Name
This column shows the name of the connection.
Value update direction
This column shows an arrow to indicate which way data can flow between the connection and the data source.
Right arrow symbol.png tag or expression updates the data source (write connection)
Left arrow symbol.png data source updates the tag or expression (read connection)
Double arrow tag or expression updates the data source and data source updates the tag or expression (read-write connection)
Tag/Expression
Type the tag name or expression associated with the connection. If a tag or expression has already been selected, it is displayed here.
Tag button (...)
Click this button to open the Tag Browser and choose a tag instead of typing the tag name in the Tag/Expression column.
Exprn button (...)
Click this button to open the Expression editor and create an expression instead of typing the expression in the Tag/Expression column.
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