GE N60 Instruction Manual page 445

CHAPTER 5: SETTINGS
The direct analogs feature allows the transmission of analog values between any two UR-series relays that support the
feature. The communication channel is the same as that used for the direct inputs and outputs. When the direct inputs and
outputs and direct analog features are used together on the same channel, all UR-series relays must be using firmware
version 5.20 or higher.
Values are transmitted as unscaled floating point numbers. The units for these values are the base units of the FlexAnalog
value (for example, volts, amperes, watts, vars, VA, and so on).
Transmission of values occurs once every 250 ms, defined as the integrity period. Deadband and FlexLogic trigger checks
are performed once per power system cycle. Once a deadband or FlexLogic trigger occurs, the next transmission does not
occur until the next 250 ms integrity time-out.
5.9.7.2 Direct analog outputs
SETTINGS  INPUTS/OUTPUTS  DIRECT ANALOGS  DIRECT ANALOG OUTPUTS  DIRECT ANALOG 1(32) OUTPUT
 DIRECT ANALOG 1
 OUTPUT
The direct analog outputs share the direct input and output settings for device ID, data rate, ring configuration, and
channel crossover.
— This setting selects the FlexAnalog parameter used to drive the associated direct analog output.
ANALOG 1 VALUE
— This setting specifies the deadband value used to trigger transmission of the associated direct
ANALOG 1 DEADBAND
analog output. This value is stored as an IEEE 754 / IEC 60559 floating-point number. Because of the large range for this
setting, not all values can be stored—some values can be rounded to the closest possible floating point number.
— This setting selects the FlexLogic operand used to trigger the transmission of the associated direct
ANALOG 1 TRIGGER
analog output. Transmission occurs on the rising edge of the operand. The operand must transition from 0 to 1 and remain
at a value of 1 for at least one power system cycle to ensure detection of the rising edge and transmission of the
associated direct analog output.
5.9.7.3 Direct analog inputs
SETTINGS  INPUTS/OUTPUTS  DIRECT ANALOGS  DIRECT ANALOG INPUTS  DIRECT ANALOG 1(32) INPUT
 DIRECT ANALOG 1
 INPUT
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
 DIRECT ANALOG

 INPUTS
ANALOG 1 VALUE:

Off
ANALOG 1 DEADBAND:

0.000
ANALOG 1 TRIGGER:

Off
DIRECT ANALOG 1

DEVICE: 0
DIRECT ANALOG 1

NUMBER: 0
ANALOG 1 DEFAULT:

1000.000
ANALOG 1 DEFAULT

MODE: Default Value
DIRECT ANALOG 1

UNITS: unit
DIRECT ANALOG 1PU:

1
See page 5-285
Range: Off, any FlexAnalog parameter.
See Appendix A for complete list.
Range: 0.000 to 1000000000.000 in steps of 0.001
Range: FlexLogic operand
Range: 0 to 16 in steps of 1
Range: 0 to 32 in steps of 1
Range: –1000000000.000 to 1000000000.000 in
steps of 0.001
Range: Default Value, Last Known
Range: up to four alphanumeric characters
Range: 1 to 2000000 in steps of 1
INPUTS/OUTPUTS
5
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