GE D90 Plus Instruction Manual page 424

AUTOMATION INPUTS AND OUTPUTS
Shared automation operands
416
• Communications.
• Digital fault recorder (DFR).
• Equipment manager.
• Front panel interface (HMI).
However, it is often desirable for an output from an element within one function can be
available to an element within another function. For instance, it may 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 as to each function as
shown below.
Figure 339: Default operand list by function
The content of each operand list is dependent on the selected order code.
The shared operands functionality expands upon this system. With this feature, an output
from any element can be assigned as a shared operand within the EnerVista UR
Setup software. These signals can then be assigned as inputs to other functions.
For example, assume that the
within the automation function. This operand would then be assigned as a shared
operand, and would subsequently become available to the automation function. A total of
64 operands may be assigned as shared operands within each function.
Select the Settings > Automation > Automation Inputs/Outputs > Shared Operands
menu item to select the shared automation logic operands.
protection operand is required as a signal
GND TOC1 OP
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 8: AUTOMATION
Plus