6F2S1931 (0.20)Centralized GRB200(Soft: 030, 031, 032, 033, 034)- 315 -4.6.4 Monitoring jacksA monitoring jack including a LED is provided so that the user can monitor a binary signal onthe logic straightforwardly. For example, when the user wishes to monitor the operating stateof a relay function, set the signal number (Data ID) that the user wishes to monitor; then theuser can see lighting the LED when the relay is operated. Using with an oscilloscope, the usercan also observe the binary signal that comes from the monitoring jack; three monitoring jacks(Term A, B, and C) are available on the front panel.Table 4.6-9 Output terminals for signal monitoring (No default setting)Jack Jack name LED Color RemarksA Term A Yellow Set user’s preferred signal numberB Term B Yellow Set user’s preferred signal numberC Term C Yellow Set user’s preferred signal numberWhen the user wishes to test the phase-A element the OC1 relay using an oscilloscope,for example, set the phase-A monitoring point (44001 8000011C20†) for the setting [Term A],as shown in Figure 4.6-5. Consequently, the OC1 operating signal is outputted to the jack atthe Term A. The LED at the Term A is also lit in step with the output signal. The user can useto monitor the phase-B and phase-C signals using by settings respective Data IDs for the [TermB] and [Term C]. We shall see the menus for the Term A to Term C in ChapterUser interface:Setting sub-menu: Signal monitoring screen.OC function(Function ID: 440001)DRIVER TermASignal designated bysetting [Term A] Signal to theoscilloscope“TEST-A”(201B01_3100221001)Monitoring jack (Function ID: 201301) Jacks and LEDsTerm A LED440001 8200011C22440001 8000011C20440001 8100011C21ABCOC1DRIVER TermBSignal designated bysetting [Term B] Signal to theoscilloscope“TEST-B”(201B01_3100231001)Term B LEDDRIVER TermCSignal designated bysetting [Term C] Signal to theoscilloscope“TEST-C”(201B01_3100241001)Term C LEDFigure 4.6-5 Monitoring logics A, B and C†Note:The monitoring point is just selected for the explanation; the user can select amonitoring point from the relay applications and general control functions. Themonitoring points is listed as PLC monitoring points in each function.