Variable Sections For Calculations; Special Cases; Total Variable Count Is >64000 - ABB 800xA User Manual

Variable Sections for Calculations

Special Cases

Total variable count is >64000
The current .NET CLR implementation allows only 65536 member fields per class
(1534 fields are reserved for other base class functionality). Hence there are only
64000 member fields available. So, it is required to define the Sections of Variables
to separate the variables in the different groups with total number of variables not
exceeding 64000 per group.
Variable Sections for Calculations
In case of high availability systems perform the following steps on one of the high
availability servers.
It is necessary to modify the definition in SimpleConfig for RTDB-Calculation
section.
1.
140
Section: RTDB-Calculation
Key: UseVariableSections
Value(To be Modified):Non-Zero Value(By default it is '0')
To modify, do the following:
a. Open Vtrin user interface in one of the History Server.
b. Navigate to Maintenance > Basic > Service Parameters(SimpleConfig).
c. Click Edit tab and navigate to:
Section: RTDB-Calculation
Key: UseVariableSections
d. Click the Value field and enter any non-zero value as shown in
Appendix B Calculation using C# Calculation File
Figure 85.
2PAA107563-600 B