Eurotherm 5100e, Руководство пользователя

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100 MM GRAPHICS RECORDER: USER GUIDE
HA027271
Issue 12 Mar 04
User Guide
Page 28
3.4 DISPLAY MODES (Cont.)
3.4.2 Horizontal Trend display
This display (figure 3.4.2a) is similar to the Vertical Trend display described above, except that the traces are pro-
duced horizontally rather than vertically.
Group Name
12:03:27
29/01/04
Channel 1
21.2613
˚C
0.000
35.00
Engineer
12:00:52
29/01/04 12:02:12
29/01/04
29/01/04 12:02:20 Alarm(s) off 2 (1)
Faceplates for current
channel.
Touch either faceplate to
increment channel
(or touch pen to select
channel).
Bargraph
Current pen icon
Non-current
pen icon
If this arrow is displayed, then
touching the message bar displays
previous messages Latest message
Time at
adjacent
gridline
Message bar
Alarm threshold
Figure 3.4.2a Horizontal trend display mode
One of the channels is said to be the 'current' or 'scale' channel. This channel is identified by its pen icon being dia-
mond shaped rather than triangular as for non-current channels. If a channel is included in the display group but its
status is 'not good' for some reason, then its pen icon is hollow. Each channel in the display group becomes the 'cur-
rent' channel, in turn, for approximately 10 seconds – i.e. the channels are cycled-through, starting with the lowest
numbered channel. Once the final channel in the group has been displayed for 10 seconds, the lowest numbered chan-
nel is returned to and the sequence repeats. This scrolling process can be stopped using the Channel Cycling key in
the Option menu.
As well as the normal faceplate above the 'chart', showing the current channel's descriptor and its digital value, a
bargraph representation of the current channel's value together with a scale showing the low and high range values for
the channel appears to the right of the chart. Touching the faceplate or the bargraph* causes the current channel
number to increment. To select a particular channel to be the current channel, the relevant pen icon can be touched. In
either case, the bargraph and the background colour of the channel descriptor takes the colour of the current channel.
Time and date are printed on the 'chart' immediately to the right of alternate vertical grid lines, and it is these grid
lines to which the printed time relates.
There is no horizontal trace Trend History function - touching the 'chart' for a few seconds (or using the Root menu
Options key, then 'Enter History') calls the vertical trend history page described in section 3.4.1, above.
*Note: For 'zoned' points ( section 4.3.3 ), the bargraph must be touched within the scale area to increment the
channel.