Virtual Analog Outputs; Using Shared Operands In Automation - GE D90 Plus Instruction Manual

CHAPTER 8: AUTOMATION

Virtual analog outputs

Using shared operands in automation

PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
There are 128 virtual analog outputs that can be assigned using automation logic. Virtual
analog outputs are resolved in each pass through the evaluation of the automation logic
equations.
Select the Settings > Automation > Automation Inputs/Outputs > Virtual Analogs menu
to access the virtual analog output configuration settings.
Figure 402: Virtual analog output configuration settings
The following setting is available, with that for virtual analog output 1 outlined. The settings
are identical for all virtual analog outputs.
Virtual Analog 1 Name
Range: up to 12 alphanumeric characters
Default: Analog 1
This setting specifies an identifier for virtual analog output 1. This value is included in the
actual values and also is used to reference output to features that use this parameter.
Plus
The EnerVista UR Setup software groups the D90
primary functions. Each function has its own settings and each generates its own outputs
in the form of operands.
• Communications
• Protection
• Automation
• Digital fault recorder (DFR)
• Metering
• Equipment manager
• Self-tests
• Front panel interface (HMI)
It is often desirable for an output from an element within one function to be available to an
element within another function. For example, it can be useful for the digital fault recorder
to record the output operands of any protection element. Consequently a fixed,
predetermined set of operands is available to each function, as shown.
AUTOMATION INPUTS AND OUTPUTS
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system into the following eight
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