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KB55058
Invalid characters in OptoControl subroutine names cause problems when downloading strategy
Revision:  1.0
Published:  7/7/2008
Applies To
FactoryFloor Software - OptoControl
Versions
Problem was discovered in version:  
R4.1d

SYMPTOMS

Subroutines with invalid characters (such as a period or an ampersand) in a subroutine name, cause an Undefined command error when the strategy is downloaded to a controller.

CAUSE

The OptoControl compiler allows invalid characters in subroutine names.

WORKAROUND

To correct the problem, rename the subroutines using valid characters.

Example:
These 2 subroutines need to be renamed.

Calculate.Result ←This name has a period (.)
MeasureWater&Level ←This name has an ampersand (&)

To rename them, open the subroutine in OptoControl and select File→Save As. Save the subroutine using a valid name. In our example, the subroutines can be saved as:

Calculate_Result_z
Measure_Water_Level_z

Note: The invalid character is replaced with an underscore (_). A suffix such as "_z" is also added in case an item is named the same in OptoScript.

After saving the new subroutine names, they need to be added to the strategy. Use Edit→Replace to replace all instances of the old name with the new name. After the new subroutines are added, remove the old subroutines from the strategy.

The strategy can now be downloaded to the controller.

RESOLUTION

Opto 22 is aware of this issue.

Relevant Downloads
No relevant downloads have been specified.
Questions? Contact Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com

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