5-218 N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUALCONTROL ELEMENTS CHAPTER 5: SETTINGS5DNA- 16 OPERAND: “DIGITIZER 1 BIT 2”DNA- 20 OPERAND: “DIGITIZER 1 BIT 6”DNA- 17 OPERAND: “DIGITIZER 1 BIT 3”As the input signal (true RMS) is always positive, the sign bit can be ignored and only seven points need to be exchanged.On the receiving location, incoming bits 14 through 20 are configured to drive remote inputs. The latter together with theFlexLogic constant “Off” for the sign bit is configured accordingly to use the incoming information (typically via the eight-bit comparator feature).The table illustrates this application for four sample current values.Table 5-27: Sample current values5.8.13 8-bit comparatorsSETTINGS CONTROL ELEMENTS 8-BIT COMPARATORS 8-BIT COMPARATOR 1(6)Current Nout B7... B01.00 kA 20 000101002.50 kA 50 001100104.20 kA 85 010101016.00 kA 121 01111001 8-BIT COMPARATOR 8BIT COMP 1FUNCTION: DisabledRange: Disabled, Enabled 8BIT COMP 1 ARG A0:OffRange: FlexLogic operand 8BIT COMP 1 ARG A1:OffRange: FlexLogic operand 8BIT COMP 1 ARG A7:OffRange: FlexLogic operand 8BIT COMP 1 ARG B0:OffRange: FlexLogic operand 8BIT COMP 1 ARG B1:OffRange: FlexLogic operand 8BIT COMP 1 ARG B7:OffRange: FlexLogic operand 8BIT COMP 1 INPUTMODE: SignedRange: Signed, Absolute 8BIT COMP 1DIRECTION: OverRange: Over, Under 8BIT COMP 1 ADD/SUB:OffRange: FlexLogic operand 8BIT COMP 1 PICKUP:10000.00Range: –25400.00 to 25400.00 in steps of 0.01 8BIT COMP 1HYSTERESIS: 500.00Range: 0 to 5000.00 in steps of 0.01 8BIT COMP 1 PICKUPDELAY: 0.000 sRange: 0 to 65.353 s in steps of 0.001 8BIT COMP 1 RESETDELAY: 0.000 sRange: 0 to 65.353 s in steps of 0.001
