CHAPTER 11: METERING DATA LOGGER
D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 559
Figure 490: Data logger channel configuration settings
The following settings are available for all 16 data logger channels.
Signal
Range: any FlexAnalog parameter
Default: Off
This setting selects the metering value to be recorded for the data logger channel.
Name
Range: up to 12 alphanumeric characters
Default: Channel 1
This setting specifies the name of the data logger channel.
Mode
Range: Max, Min, Mean
Default: Mean
This setting defines which value (maximum, minimum, or mean) is written to the data
logger.
Alarming
Range: Disabled, Self-Reset, Latched
Default: Disabled
When this setting is “Disabled,” alarming is inhibited. When set to “Self-Reset,” alarms
are reset as soon as the signal drops below the pickup value. When set to “Latched,” the
alarms remain active until the reset input is asserted.
Reset Alarms
Range: any metering logic operand or shared operand
Default: OFF
The alarms are reset when the operand assigned to this setting is asserted and the
Alarming setting is selected as “Latched.”
Reset Statistics
Range: any metering logic operand or shared operand
Default: OFF
The maximum, minimum, time of maximum, and time of minimum statistics are reset
when the operand assigned to this setting is asserted.
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