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Write Boolean Variable

This step allows writing a Boolean variable on a selected OPC Server.

To configure this step open the Edit Step window from Sequence editor.

In the Configuration Dialog Box, select a valid server by navigating over the Network to select a server or by using an expression.

In the Variable Path, select the Boolean Variable to write by navigating on the OPC Server with Variable Browser or by using an expression.

Tip  Only compatible variables are listed in the tree of the Variable Browser.

Select the Value to write by typing True or False or by using an expression. You can use the Expression Browser to edit the Expression.

Note  It is mandatory to use the Open Connection step to connect to the OPC Server before performing Read / Write operations. If the connection is not properly initiated, you will get an error 8004.

At execution, step configuration is added to the report.

Caution  The OK button is disabled according to your license status (see OPC DA Connect Licensing Options):

       in Execution License;

       in Evaluation Mode, after 10 minutes since TestStand starts;

       when Evaluation Mode has expired;

 

See Also

Configuration Dialog Box

Server Browser

Variable Browser