Eurotherm 5100e, Руководство пользователя

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100 MM GRAPHICS RECORDER: USER GUIDE
User Guide
Page 13
HA027271
Issue 12 Mar 04
3 PROCESS VARIABLE DISPLAY (Cont.)
TRUNCATION OF NUMERIC VALUES
If the amount of space on the display page is insufficient to display the full width of the process variable or scale
value, then the displayed value is rounded down and the number of decimal places reduced. If the available space is
still too restricted, the value is displayed in 'Scientific' format, or if this is still too wide, the final visible character of
the integer part of the display is replaced by a '?'.
CURRENT CHANNEL ALARM ICONS
In each of the different types of PV display, each channel's faceplate give the status of the channel's alarms. This
status is shown by one of the icons depicted in table 3, either off, flashing (if it is active and unacknowledged) or on
continuously (if it is active and acknowledged). See
section 3.1.3 , below, for a description of how to acknowledge
alarms, and section 4.3.3 for a description of the alarm types. Absolute alarm threshold icons and deviation-alarm
bars appear in any display which includes a scale. For deviation alarms, the bar stretches from (Reference - Devia-
tion) to (Ref Deviation).
Notes
1.
For software versions 2.3 onwards, 32MB versions of the recorder come with four alarms per point, in-
stead of two per point as supplied with previous software versions. The System/About display can be
used establish what size of DRAM s fitted - see
section 4.6.5 .
2. 'Trigger' alarms do not display threshold marks or bars, or faceplate symbols.
Absolute High
Absolute Low
Deviation in
Deviation out
Rate-of-change Rising
Rate-of-change Falling
4-alarm units 2-alarm units
Table 3 Alarm symbols
3.1 STATUS BAR
This appears across the top of the display, and contains the items described below.
3.1.1 Current access level
There are four access levels available (Logged out, Operator, Engineer and Service), and the current level is displayed
in this key at the top left hand corner of the display. Touching this key calls the root menu as described in section
3.2.1 (
Key functions ) below. If a user has been added in the 'Add User' part of the Security setup (section 4.4.3 ), then
the 'Full User Name' is displayed (truncated if necessary) instead of the access level.
3.1.2 Page name
Initially this shows the current group's descriptor. The name changes according to context for example 'Operator' or
'Config-Archive'.
Scale symbols
Faceplate symbols
Absolute
low
Absolute
high
Deviation
In / Out
Horizontal
scales
Vertical
scales
Rate of
change
No
indication
No
indication
R
d d
d
d
R
For Deviation alarms, R = Reference; d = deviation