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Display and Setting of Calendar Clock
Section 8-10
8-10 Display and Setting of Calendar Clock
The NT31/NT31C provides a function for displaying and setting the date and time.
This section describes the procedure for using the clock function.
S Numeral memory table used by the clock function
Numeral memory tables No. 247 to No. 255 are reserved for the display and set-
ting of the clock function.
Memory tables No. 247 to No. 253 are for display and reading, and No. 254 and
No. 255 are for setting.
Memory tables No. 247 to No. 253 store the clock data which is updated accord-
ing to the operation of the clock built into the NT31/NT31C. The data in these
memory tables cannot be changed from the host.
Function
Numeral
memory
table
Digit
position
Information Value Remarks
Display/
247 Second 00 to 59
reading
only
248 Minute 00 to 59
only
249 Hour 00 to 23 24-hour system
250 Date 01 to 31
251 Month 01 to 12
252 Year 00 to 99 Last 2 digits of the year
253 Day of week 00 to 06 See below.
Setting 254
Second 00 to 59
only
Date
Hour
Minute
Second
Minute 00 to 59
Hour Second
Hour 00 to 23 24-hour system
Date 01 to 31
255
Month 01 to 12
Vacant
Year
Year 00 to 99 Last 2 digits of the year
Day of
week
Month
Day of week 00 to 06
Vacant 00
The correspondence between the value and day of week is shown below.
Day of week Sun Mon Tue Wed Thu Fri Sat
Value 00 01 02 03 04 05 06
Example of setting: March 27th, ’98 (Fri.), 14 H 53 M 30 S
254
255
027
1
45 33
00059803
Reference: The numeral memory tables No. 247 to No. 255, reserved for the clock function,
cannot be allocated to a word in the host.
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