Eurotherm 6100, Руководство пользователя

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100/180MM DISTRIBUTED GRAPHIC RECORDER: USER GUIDE
HA029324
Issue 11 Oct 14 Page 185
4.3.22 OPTIONS (Cont.)
TRIAL MODE (Cont.)
Initially, the trial mode is set to expire 30 days after enabling (whether the recorder is powered or not).
Any change in confi guration results in a pop-up message stating how much of the 30 days period re-
mains. Once Trial mode is disabled by the user, the remaining Trial Time Remaining’ value is retained
until Trial Mode is re-enabled.
VIRTUAL CHANNELS
Virtual channels are Maths channels, Totalisers and Counters. The total number of virtual channels is as
specifi ed at time of order. The user can select whatever combination of maths channels, totalisers and
counters is required, so long as the total does not exceed the number of virtual channels available. If it
does, a warning is given when the ‘Apply’ button is operated, and the edit is ignored.
Note: If more than 100 maths channels are confi gured, then the Modbus register addresses of
totalisers and counters are affected. If for example there were 105 maths channels, then the value
of totaliser 1 would be found at the address normally associated with totaliser 6, and the value of
counter 1 would be found at the address normally associated with counter 6.
SIMULATION OPTION
This option consists of a number of additional jobs, described below. The Simulation option is not ena-
bled in Trial Mode’.
TREND FREEZE
When this ‘Trend’ category job ( section 4.7.10 ) is initiated, the displays are held at their values at the time
of initiation. When the recorder is ‘unfrozen’ the displays switch to their current values, and the clock will
re-start from where it stopped. No blue line is drawn across the trace to indicate time discontinuity (Time
change records -
section 3.4 ).
Note: If ‘SNTP client enable’ is enabled (Network Address area - section 4.5 ), then the recorder
time is synchronised at power-up only. I.E. the normal checks of recorder time compared with
server time are not carried out with the Simulator option enabled.
If ‘SNTP server enable’ is enabled, then the recorder will supply recorder time.
CLEAR
This ‘Trend’ category job ( section 4.7.10 ) clears the display. Used in conjunction with ‘Erase all History
(below), this is known, in some applications, as Recall Mode.
ERASE ALL HISTORY
This ‘Recording’ category job ( section 4.7.9 ) erases all the history fi les in the recorder. Used in conjunc-
tion with ‘Clear’ (above), this is known, in some applications, as Recall Mode.
Note: If the 21CFR11 option is enabled, Erase All History jobs can be triggered, but are ignored,
leaving the recording history unaffected.
SCREEN SAVER
This ‘Trend’ category job ( section 4.7.10 ) switches the display brightness to the value set up in ‘Saver
Display’ (Instrument Confi guration - section 4.3.1 ) for the duration of the job. The job overrides the ‘Save
after’ time value also set up in Instrument Confi guration.