Opto 22

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KB59096
OptoScript allows some commands be used with I/O points on I/O units that don't support the commands
Revision:  2.0
Published:  11/26/2007
Applies To
PAC Control Professional
ioControl Professional
FactoryFloor Software – OptoControl
Versions
Problem was discovered in version:  
R8.0a of PAC Control
R7.1a of ioControl
R4.1 of OptoControl
Problem is fixed in version:  
R8.1c PAC Control

SYMPTOMS

From within a script block, OptoScript incorrectly allows certain commands to be used with I/O points that reside on I/O units that do not support the commands. The OptoScript code compiles and downloads properly to the control engine, but fails to return a value when the strategy is run. Instead, an OptoScript compiler error message should report the command is not available on the specified I/O point.

Commands affected:
Generate N Pulses
Get & Clear Analog Filtered Value
Get & Clear Analog Totalizer Value
Get Analog Totalizer Value
Set Analog Totalizer Rate
Get Analog Filtered Value
Get Analog Square Root Filtered Value
Get Analog Square Root Value
Start Continuous Square Wave
Start Off-Pulse
Start On-Pulse
Ramp Analog Output

RESOLUTION

Opto 22 has resolved this issue for PAC Control.

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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This Opto 22 Knowledge Base ('OptoKB') article is intended to provide general technical information on a particular subject or subjects and is not an exhaustive treatment of such subjects. Accordingly, the information in this OptoKB article is not intended to constitute application, design, software, or other professional engineering advice or services. Opto 22 may modify the OptoKB articles at any time. Before making any decision or taking any action which might affect your equipment, you should consult a qualified professional.

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