CHAPTER 11: METERING
DATA LOGGER
D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
559
Figure 487: 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
If this setting is “Disabled”, alarming is inhibited. If selected as “Self-Reset”, alarms will
reset as soon as the signal drops below the pickup value. If selected as “Latched”, the
alarms will 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.
