NT21_Reference Manual (V069-E1-1) (986756), страница 15
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Whether the value is expressed in BCD or hexadecimal is determined53SectionAreas for Control/Notification2-2by the setting for numeral storage type in the PT configuration settings madewith the Support Tool.PTPCPT status control areaScreen switch setting← Screen numberCopy memoryDesignated screentable settingPT status control settingReserved for system useScreen Switch Setting in the PT Status Control AreaWordn15 14 13 12 11 10 987654321Screen number (4-digit BCD or hexadecimal)0 BitScreen switch settingThe screen numbers that can be set are as follows:BCDHexadecimalScreen00000000No-display (screen cleared)0001 to39990001 to 0F9FScreen numbers 1 to 3,99990012329Occurrence history screen9002232AFrequency history screen9021233DDevice Monitor function:(See note.)Registration monitor screen9022233EDevice Monitor function:(See note.)Continuous monitor screen9023233FDevice Monitor function:Error log screen (See note.)90302346Brightness and contrast adjustment screen (See note.)Note These functions are not supported by the NT21.Reference:S The screen can also be switched by bit memory table operation (page 300), bytouch switch operation (page 301), or by using the alarm list/history function(page 304).S To display overlapping screens, designate the screen number of the parentscreen.S If there are no elements registered for the designated screen number, or if akeyboard screen is designated, the screen does not switch.S When the PT starts operating, the screen is displayed according to the contents of the screen switch setting word.
If the contents of the screen switch setting word are invalid, the screen is displayed according to the Initial Screen inthe PT configuration settings made at the Support Tool. If the setting for InitialScreen is also invalid, an error message is displayed.S The PT will continue operating when the Programming Console function or Device Monitor function is called with a command from the host, but even thoughthe Programming Console or Device Monitor screen is displayed, it will beskipped if you attempt to go back to it with a return to previous screen touchswitch.54SectionAreas for Control/Notification2-2When Data Is Written from the PTWhen the screen display has been switched by operation at the PT, the newscreen number is written as a 4-digit BCD or hexadecimal value into the screenswitch setting word by the PT.
At the same time, the ON status is also notified tothe screen switch strobe flag of the PT status word of the PT status notify area bythe PT (after notification, the OFF status is re-established) (page 306). Whetherthe data is written in BCD or hexadecimal format is determined by the setting fornumeral storage type in the PT configuration settings made at the Support Tool.PTPCPT status control areaScreen switch setting← Screen numberCopy memoryCurrentlydisplayed screentable settingPT status control settingReserved for system usePT status notify areaContent update memory table← Screen switch strobeflagPT statusScreen Switch Setting Word of the PT Status Control Area and PT StatusWord of the PT Status Notify AreaPT status control areaWordn15 14 13 12 11 10 987654320 Bit1Screen switch settingScreen number (4-digit BCD or hexadecimal)PT status notify areaWordm+115 14 13 12 11 10 9876543210 Bit–0–––––0000–––0PT statusScreen switch strobe flagThe screen numbers notified are as follows:BCDHexadecimalScreen00000000No-display (screen cleared)0001 to39990001 to 0F9FScreen numbers 1 to 3,99990012329Occurrence history screen9002232AFrequency history screen9020233CProgramming Console function screen9021233DDevice Monitor function:(See note.)Registration monitor screen9022233EDevice Monitor function:(See note.)Continuous monitor screen9023233FDevice Monitor function:Error log screen (See note.)90302346Brightness and contrast adjustment screen (See note.)Note These functions are not supported by the NT21.55SectionAreas for Control/NotificationReference:2-2S The screen number is notified only when the screen is switched by operationat the PT.S When overlapping screens are displayed, the screen number of the parentscreen is notified.S When the PT is set to NT20S or NT30/620 compatible mode, the screen switchsetting notification from the PT occurs in the first word (word m) of the PT statusnotify area.
Refer to Appendix C for details on the NT20S and NT30/620 compatible modes.Copy Source/Copy Destination Memory Table Entry NumbersDesignate the memory table entry numbers of the copy source and copy destination memory table entries as 4-digit BCD or hexadecimal values, when copying data between memory table entries in the PT. Whether the values are BCD orhexadecimal is determined by the setting for numeral storage type in the PT configuration settings made with the Support Tool.The memory table entry numbers that can be designated are indicated in thetable below.BCD0001 to 1999Hexadecimal0000 to 07CFNumbersMemory table entry numbers 0 to 1,999Note that it is only possible to copy between the following combinations.• A numeral memory table entry and a numeral memory table entry• A character string memory table entry and a character string memory tableentryReference:S What is designated here is the memory table entry number only.
The type ofmemory table (numeral/character string) is set by the memory table copy typebit in the PT status control bits.S Copying is not executed just be writing the memory table entry numbers. It isexecuted when the memory table entry copy execution bit in the PT status control bits is turned ON.S Since the memory table entry numbers start from 0, if there are 2000 memorytable entries, the range is 0 to 1999, and if there are 1000, the range is 0 to 999.S When the PT is set to NT20S or NT30/620 compatible mode, copying betweenmemory table entries is performed differently. Refer to Appendix C for detailson the NT20S and NT30/620 compatible modes.56SectionAreas for Control/Notification2-2Pt Status Control BitsThe PT status control bits have the functions indicated below.15n+3ch141312111098076543210Bit01 (ON)0 (OFF)Screen displayPerformedNot performed14Processing priority registration (for NT link (1:N))RegisteredCanceled13Continuous buzzerSoundedStopped12Intermittent buzzer (short)SoundedStoppedPerformedControlled Item1511Display history initialization10Not used9Intermittent buzzer (long)8Backlight modeLitFlashing7Screen printingPerformedNot performed6PT window openingDisabledEnabled5Numeral/character string inputDisabledEnabled4PT screen switching3Memory table copy execution2Memory table copy type1Alarm history initialization0Not usedNot performedAlways 0SoundedStoppedDisabledEnabledPerformedNot performedNumeralCharacter stringPerformedNot performedAlways 0The backlight mode bit (bit 8) is not supported by the NT631.The screen printing bit (bit 7) is not supported by the NT21.Reference:S Since the statuses of the PT status control bits do not change even if the statusof the PT changes in accordance with the settings of attributes or memoryswitches, the statuses of the PT status control bits may sometimes disagreewith the status of the PT.
For example, the buzzer may be sounding eventhough the continuous buzzer bit is OFF. In such a case, perform PT statuscontrol bit operations to achieve agreement with the status of the PT.S The PT status control bits are checked in bit units by the PT. The only functionsthat are actually performed are those for which the corresponding bits havechanged in status.S The configuration of the PT status control bits is different when the PT is set toNT20S or NT30/620 compatible mode. Refer to Appendix C for details on theNT20S and NT30/620 compatible modes.Screen Display (Bit 15)The screen display bit displays and clears screens. It is used to prevent theformation of an afterimage on the display panel, etc. When bit 15 is turned OFF,the screen is cleared and the backlight also goes off. However, if the screen saver function is set with the memory switches of the PT, the screen saver is activated (the operation depends on the setting made for the screen saver function).If bit 15 is turned ON (1), or the touch panel is pressed, while the screen iscleared (or while the screen saver function is working), the screen that was displayed immediately before the screen was cleared is redisplayed.
The backlightalso comes back on (or flashes).Reference: Even when bit 15 is OFF, the designated screen will be displayed if screenswitching is designated from the host, or the status of bit 8 (backlight mode)changes, or the touch panel of the PT is pressed.57SectionAreas for Control/Notification2-2Processing Priority Registration (For NT Link 1:N) (Bit 14)One of the PTs connected by the NT link (1:N) method can be registered forpriority processing.
The PT for which bit 14 is set to ON (1) is given priority overthe other PTs, and has more rapid response time for screen display, touch switchoperations, etc.When bit 14 is set to OFF (0), this registration is canceled and the responsespeed is returned to normal. If priority registration is set for more than one PT, theone set last is given priority.The unit number of the PT given priority registration can be checked by monitoring (reading) a word at the CS1, CS1-H, CJ1, CJ1-H, C200HX/HG/HE(-Z)E,CQM1H, and SRM1. For details on the word monitoring operation at a PC, referto the manual for the PC you are using.The contents of the words that reflect the status of an NT link (1:N) system areindicated below.WordBitFunctionC200HX/HG/HE(-Z)EIR 265 (standard port)IR 284 (port A)*1IR 285 (port B)*10Peripheral Port PT Communications Flag for unit 0: ON when connected1Peripheral Port PT Communications Flag for unit 1: ON when connected2Peripheral Port PT Communications Flag for unit 2: ON when connectedCS1, CS1-H, CJ1, CJ1-HAR 393 (RS-232C port)AR 394 (p(peripheralppport))CIO 1909 (port( t 1)*2CIO 1919 (port 2)*2CIO n+9 (port 1)*3CIO n+19 (port 2)*333Peripheral Port PT Communications Flag for unit 3: ON when connected4Peripheral Port PT Communications Flag for unit 4: ON when connected5Peripheral Port PT Communications Flag for unit 5: ON when connected6Peripheral Port PT Communications Flag for unit 6: ON when connected7Peripheral Port PT Communications Flag for unit 7: ON when connected8Peripheral Port PT Priority Registered Flag for unit 0: ON when given priority9Peripheral Port PT Priority Registered Flag for unit 1: ON when given priority10Peripheral Port PT Priority Registered Flag for unit 2: ON when given priority11Peripheral Port PT Priority Registered Flag for unit 3: ON when given priority12Peripheral Port PT Priority Registered Flag for unit 4: ON when given priority13Peripheral Port PT Priority Registered Flag for unit 5: ON when given priority14Peripheral Port PT Priority Registered Flag for unit 6: ON when given priority15Peripheral Port PT Priority Registered Flag for unit 7: ON when given priorityCQM1HIR 202 (p(port 1))*2IR 203 (port( t 2)*2SRM1AR 09*1: Communications Board ports*2: Ports on the Serial Communications Board*3: Ports on the Serial Communications Unit (n=1500)25the Unit’s unit number)Continuous Buzzer (Bit 13), Short Intermittent Buzzer (Bit 12), Long Intermittent Buzzer (Bit 9)The continuous buzzer continues buzzing with no interruptions.The short intermittent buzzer repeatedly alternates between sounding for 0.5seconds and stopping for 0.5 seconds.The long intermittent buzzer repeatedly alternates between sounding for 1.0 seconds and stopping for 1.0 seconds.If more than one of these bits is ON at the same time, the buzzer sounds in accordance with the following order of priority.1.
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