5-106 D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUALPRODUCT SETUP CHAPTER 5: SETTINGS5a = 0.006b = -4096Vt = 0.006 * V - 4096For max voltage 500000 V * 2.4 = 1200000 V, we transmitVt = 0.006 * 1200000 - 4096 = 7200 - 4096 = 3104SETTINGS PRODUCT SETUP COMMUNICATIONS IEC 60870-5-103 IEC103 COMMANDSCommands are received as General Command (Type Identification 20). The user can configure the action to perform whenan ASDU command comes.A list of available mappings is provided on the D30. This includes 64 virtual inputs (see the following table). The ON and OFFfor the same ASDU command can be mapped to different virtual inputs.Each command is identified by the unique combination made by the function type (FUN) and information number (INF). Ifthe master sends an ASDU command that does not have the FUN and INF of any configured command, the relay rejects it.Table 5-12: Commands mapping table IEC103 COMMANDS COMMAND 0See below COMMAND 1 COMMAND 31 COMMAND 0 COMMAND 0 FUN:0Range: 0 to 255 in steps of 1 COMMAND 0 INF:0Range: 0 to 255 in steps of 1 COMMAND 0 ON:OffRange: Virtual input COMMAND 0 OFF:OffRange: Virtual input COMMAND 31 COMMAND 31 FUN:0Range: 0 to 255 in steps of 1 COMMAND 31 INF:0Range: 0 to 255 in steps of 1 COMMAND 31 ON:OffRange: Virtual input COMMAND 31 OFF:OffRange: Virtual inputDescription ValueOff 0Virtual Input 1 1Virtual Input 2 2... ...Virtual Input 64 64