100/180 MM GRAPHICS RECORDER: USER GUIDE
HA261742
Issue 16 Nov 04
User Guide
Page 58
4.3.2 GROUP CONFIGURATION (Cont.)
A/B SWITCHING
If enabled, this function allows alternative values for Trend speed/interval and Recording speed/interval to be entered.
'A' values are used during normal operation. 'B' values are switched to by job action, as described in
TREND SPEED/TREND INTERVAL
Allows the 'chart' speed to be selected either as mm or in per hour, or as an interval. Entering a value in one field
automatically converts the value in the other field. A trend interval of N seconds is equivalent to 1200/N mm/hr chart
speed; a chart speed of P mm/hr is equivalent to a trend interval of 1200/P seconds.
If A/B switching is enabled, a second Trend Speed /Interval value can be entered. Trend Speed/Interval 'A' is used
during normal operation. Trend Speed/Interval 'B' is switched to by job action, as described in
Note: Trend speed/interval are not editable fields if 'Circular Settings' is enabled. The Circular Settings check
box, described below, appears only if the Circular Trend option is fitted.
CIRCULAR SETTINGS
This checkbox appears only if the Circular Trend option is fitted, and, when checked, causes the Circular Speed/Chart
Full/Start At fields, described below, to appear. When checked, the Trend Speed and Trend Interval fields described
above are disabled (i.e. they are no longer editable).
Notes:
1
The following Circular Chart fields appear only if the Circular Trend option is fitted, and 'Circular Set-
tings' is enabled, as described above. Circular Trend is not available for 100 mm instruments.
2
If Circular Settings is not enabled, here in Group configuration, but Circular Trend is enabled for the
group in Views configuration (
), then, although the circular chart will appear, it is unlikely
that the chart will contain any trends.
CIRCULAR SPEED
This field allows the chart speed to be selected from a pick list, as detailed in table 4.3.2, below. The table also shows
the number of major and minor chart divisions.
CIRCULAR CHART FULL
This allows 'New Chart' or 'Rotate' to be selected from a picklist. See
for details. Table 3.4.2 shows the
major and minor chart divisions for each chart speed.
START AT
This item, (which appears only if 'New Chart' has been selected in 'Circular Chart Full', above) allows the user to
select a start time and/or date for the new chart. The exception is for a chart speed of 1 hr/rev, which always starts on
the hour.
Chart spd.
(hours/rev)
1
2
4
6
8
12
16
24
48
168*
336*
672*
720*
Chart divs
Major Minor
12
12
12
12
8
12
8
12
12
7
7
4
30
2
2
2
2
2
2
2
2
2
4
4
7
0
New Chart Start at
On the hour
Day of week at
00:00:00
Day of week at
00:00:00
00 to 23 at
00:00 hrs
Start at choices
Examples/comments
4 hours/rev.; Start at 12.
This chart will start at 1200 hrs and re-start at
1600, 2000, 2400, 0400, 0800 hrs etc.
48 hrs/rev.; Start Monday.
Chart starts Mon. 00:00:00 and restarts Weds, Fri etc,
At each power-on, the system resets to the first week
of the period, with the most recent 'Start at' day of the
week at the top of the chart.
* 168 hrs = 1 week; 336 hrs = 2 weeks; 672 hrs = 4 weeks; 720 hrs = 30 days.
Table 4.3.2 Circular chart speed details
