NT21_Reference Manual (V069-E1-1) (986756), страница 74
Текст из файла (страница 74)
MENU screen.To initialize the alarm history record data by operation at the PT status control area, change the status of bit 1 in the 4th word (word n + 3) from the beginning of the PT status control area to 11 (ON).After initializing the alarm history record data by the operation at the PT status control area, return the status of bit 11 to 0 (OFF).2. Display the display history confirmation screen from the System Menu. (Thefollowing displays show screens from an NT31/NT31C PT.)The recorded display history record data is displayed.Display in the Order of Occurrence (Screen No. 9001)353Using the Display History FunctionSection3-9Display in the Order of Frequency (Screen No.
9002)3. It is possible to display the previous and the next page by pressing the ↑ and↓ keys.4. To end the display, press the Quit touch switch.Reference: For the procedure for displaying display history from the System Menu, refer toDisplaying and Printing the Display History Record in section 6 in the SetupManual.354Section 3-10Display and Setting of Calendar Clock3-10 Display and Setting of Calendar ClockThe PT provides a function for displaying and setting the date and time. This section describes the procedure for using the clock function.Numeral Memory Table Entries Used by the Clock FunctionNumeral memory table entries 247 to 255 are reserved for the display and setting of the clock function.Memory table entries 247 to 253 are for display and reading, and No.
254 andNo. 255 are for setting. (With the NT21, table entry numbers 254 and 255 arereserved by the system.)With the NT31/NT31C or NT631/NT631C, memory table entries 247 to 253store the clock data that is updated according to the operation of the clock builtinto the PT. The data in these memory table entries cannot be changed from thehost.With the NT21, the clock data read from the words allocated in the host is storedin table entry numbers 247 to 253.NumeralFunction memorytableentryDisplay/readingonlySettingonly(NT31/NT31CorNT631/NT631C)((Reserveddby system forNT21.)DigitpositionInformationValue247Second00 to 59248Minute00 to 59249Hour00 to 23250Date01 to 31251Month01 to 12252Year00 to 99Last 2 digits of theyear253Day ofweek00 to 06See below.254Second00 to 59Minute00 to 59Hour00 to 23Date01 to 31Month01 to 12Year00 to 99Day ofweek00 to 06Vacant00DateMinuteHour Second255Vacant YearDay of MonthweekRemarks24-hour system24-hour systemLast 2 digits of theyearThe correspondence between the value and day of week is shown below.Day of weekSunMonTueWedThuFriSatValue00010203040506Example of setting for the NT31/NT31C or NT631/NT631C: September 28th,’01 (Fri.), 14 H 53 M 30 S254 2 8 1 4 5 3 3 0255 0 0 0 5 0 1 0 9355Section 3-10Display and Setting of Calendar ClockReference: The numeral memory table entries 247 to 255, reserved for the clock function,cannot be allocated words in the host.3-10-1 Setting the Date and Time (NT31/NT31C and NT631/NT631C)The clock data can be set by the following methods for the NT31/NT31C orNT631/NT631C.
(With the NT21, the clock data is read from the host and cannotbe set at the PT.)• Setting from the System Menu• Changing the value in numeral memory table entries 254 and 255The following explains the procedure for writing the required clock data to thenumeral memory table entries. For the procedure for setting the clock data usingthe System Menu, refer to Displaying/Setting the Calendar and Clock in section6 in the Setup Manual.Reference: The clock has an accuracy of maximum monthly error of –39 to +65 seconds at aroom temperature (25_C).
Adjust the error periodically to operate the clock accurately.Changing the Value in Numeral Memory Table Entries 254 and 255Numeral memory table entries 254 and 255 are specially used for setting theclock data.These memory table entries cannot be allocated words in the host. Therefore, tochange the contents in these memory table entries, write the data to be set inthem into another numeral memory table entry first then copy the written value tonumeral memory table entries 254 and 255 using the memory table copy function.PT98 / 03 / 089 / 50 / 18PCDate, hour,DM0000Day of week,year, monthDM00020 minute, second1Date, hour,254 minute, secondDay of week,255 year, month–Minute, second DM0000CopyDate, hourDM0001Year, monthDM0002Days of weekDM0003–To copy a memory table entry, either use the PT status control area or the touchswitch copy setting function.
Here, the procedure for copying a memory tableentry using the PT status control area is described. For the procedure for usingthe touch switch copy setting function, refer to Changing Numeric Values/Character Strings by Pressing a Touch Switch That Has the Copy Setting Function(page 326).Reference:S The PT does not check the set date and time data strictly. Therefore the datamust be set correctly so that there is no discrepancy between the date and theday of a week.S The procedure used to copy between memory table entries is different whenNT30/620 compatible mode is being used. Refer to Appendix C for details onthe NT20S and NT30/620 compatible modes.356Display and Setting of Calendar ClockSection 3-10SettingPrepare two numeral memory table entries to write the required values for copying it to numeral memory table entries 254 and 255.• PC Address:Any word in the host• Words:2 words• Storage Type: BinaryUse the PT status control area to copy memory table entries.
Since the PT control area must be allocated words in the host, no setting is necessary for copyingmemory table entries.OperationIn the PT status control area, the following areas are provided to be used for copying the data between memory table entries.• Second word from the beginning (word n + 1)Copy source memory table entry number• Third word from the beginning (word n + 2)Copy destination memory table entry number• Fourth word from the beginning (word n + 3)Memory table entry type (bit 2) and PT status control bit specifying theexecution of copying (bit 3)357Section 3-10Display and Setting of Calendar Clock(n: First word address in the PT status control area)Word 15 14 13 12 11 10 9n876543210BitScreen No.
(4-digit BCD or hexadecimal)Screen switch settingCopy source memory table entry number(4-digit BCD or hexadecimal)n+1n+2Copy destination memory table entry number(4-digit BCD or hexadecimal)n+3PT status control bitsn+4Reserved for system useCopy memorytable entrysettingPT status controlThe configuration and functions of these words are differentwhen the PT is in NT20S or NT30/620 compatible mode.PT Status Control (word n + 3)1514131211109876543210Bit001 (ON)0 (OFF)15Screen displayControlled ItemPerformedNot performed14Processing priority registration (for NT link (1:N))RegisteredCanceled13Continuous buzzerSoundedStopped12Intermittent buzzer (short)SoundedStoppedPerformed11Display history initialization10Not used9Intermittent buzzer (long)SoundedStopped8Backlight modeLitFlashing7Screen printingPerformedNot performed6PT window openingDisabledEnabled5Numeral/character string inputDisabledEnabled4PT screen switchingDisabledEnabled3Memory table copy execution2Memory table copy type1Alarm history initialization0Not performedAlways 0PerformedNot performedNumeralCharacter stringNot performedPerformedAlways 0Not usedBits 2 and 3 are not used when the PT is in NT20S orNT30/620 compatible mode.Bit 7 is not supported by the NT21.The operation for setting the date and time data is described below.The following explains the operation for copying the numeric value from copysource numeral memory table entry A to copy destination numeral memory tableentry 254 and from copy source numeral memory table entry B to copy destination numeral memory table entry 255.
The numeric values in numeral memorytable entries A and B are stored in BCD.1, 2, 3...1. Set the date and time data in the words allocated for numeral memory tableentry A (word A and word A+1, in the illustration below).A+115A...015...Word0DateHourMinuteSecond(01 to 31)(00 to 23)(00 to 59)(00 to 59)BitContents of setting2. Set the date and time data in the words allocated numeral memory tableentry B is (word B and word B+1, in the illustration below).358Section 3-10Display and Setting of Calendar ClockB+115Not used(always 00)...B0Day of week(00 to 06Sun. – Sat.)15Year(00 to 99last 2 digits ofthe year)Word...0MonthBitContents of setting(01 to 12)3.
Write the memory table entry numbers to the PT status control area in 4-digitBCD as shown below (designation of copy source and copy destinationmemory table entry numbers).• Second word from the beginning (word n + 1): Table entry number ofnumeral memory tableentry A• Third word from the beginning (word n + 2):02544. Set 1 (ON) for bit 2 of the fourth word (word n + 3) from the beginning of thePT status control area (designation of memory table copy type as numericvalue).5.
![](https://s.studizba.com/z.php?f=/templates/si/i/noavatar.png&w=100&h=100&t=1"){kind=avatar}
