vi N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUALTABLE OF CONTENTS5.8.4 Selector switch................................................................................................................... 5-1915.8.5 Underfrequency................................................................................................................. 5-1985.8.6 Overfrequency.................................................................................................................... 5-1995.8.7 Synchrocheck ..................................................................................................................... 5-2005.8.8 Digital elements................................................................................................................. 5-2035.8.9 Digital counters.................................................................................................................. 5-2065.8.10 Monitoring elements ....................................................................................................... 5-2085.8.11 Frequency rate of change ............................................................................................ 5-2135.8.12 Digitizers................................................................................................................................ 5-2155.8.13 8-bit comparators ............................................................................................................ 5-2185.8.14 8-bit switches ..................................................................................................................... 5-2245.9 Inputs/outputs ..............................................................................................5-2255.9.1 Contact inputs.................................................................................................................... 5-2255.9.2 Virtual inputs ....................................................................................................................... 5-2275.9.3 Contact outputs................................................................................................................. 5-2285.9.4 Virtual outputs.................................................................................................................... 5-2315.9.5 Resetting ............................................................................................................................... 5-2315.9.6 Direct inputs and outputs ............................................................................................. 5-2325.9.7 Direct analog inputs and outputs ............................................................................. 5-2365.9.8 Direct integer inputs and outputs............................................................................. 5-2385.9.9 Teleprotection..................................................................................................................... 5-2405.10 Transducer inputs/outputs.........................................................................5-2415.10.1 DCmA inputs ....................................................................................................................... 5-2415.10.2 RTD inputs ............................................................................................................................ 5-2425.10.3 DCmA outputs .................................................................................................................... 5-2435.11 Testing ............................................................................................................5-2465.11.1 Test mode function .......................................................................................................... 5-2465.11.2 Test mode forcing............................................................................................................. 5-2475.11.3 Force contact inputs ....................................................................................................... 5-2485.11.4 Force contact outputs .................................................................................................... 5-2485.11.5 Phasor Measurement Unit test values.................................................................... 5-2496 ACTUAL VALUES 6.1 Actual values menu.......................................................................................... 6-16.2 Status.................................................................................................................. 6-36.2.1 Contact inputs..........................................................................................................................6-36.2.2 Virtual inputs .............................................................................................................................6-36.2.3 RxGOOSE boolean inputs ....................................................................................................6-46.2.4 RxGOOSE DPS inputs.............................................................................................................6-46.2.5 Teleprotection inputs ............................................................................................................6-46.2.6 Contact outputs.......................................................................................................................6-56.2.7 Virtual outputs..........................................................................................................................6-56.2.8 RxGOOSE status.......................................................................................................................6-56.2.9 RxGOOSE statistics.................................................................................................................6-66.2.10 Digital counters........................................................................................................................6-66.2.11 Selector switches ....................................................................................................................6-66.2.12 Flex States ..................................................................................................................................6-76.2.13 Ethernet.......................................................................................................................................6-76.2.14 Real time clock synchronizing ..........................................................................................6-76.2.15 Direct inputs ..............................................................................................................................6-86.2.16 Direct devices status.............................................................................................................6-86.2.17 Direct integer inputs..............................................................................................................6-96.2.18 Teleprotection channel tests.............................................................................................6-96.2.19 Remaining connection status ...........................................................................................6-96.2.20 Parallel Redundancy Protocol (PRP) ............................................................................ 6-106.3 Metering ...........................................................................................................6-11