JUMO 706585 LOGOSCREEN fd Operating Manual - Manual (Page 133)

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18 Configuration - Groups
18.2 Analog Channels
Overview
Channel 1
Input signal The input (or input signal) selected here will be used as channel no. 1 for the
group. All internal or external analog channels, as well as math channels
(available as an extra), can be chosen.
Channel 1 has been assigned a special task: it is used as a reference curve for
the other channels of the group. All the other channels of the group can be
compared with Channel 1, independently of each other. On leaving the
configured tolerance band, an alarm will be initiated, an alarm text will appear
in the “status & title bar” and will be entered in the alarm or event list.
Line width Determines the width of the graphical measurement display.
Positive
tolerance “Positive tolerance” and the present measurement from Channel 1 form the
upper limit for the tolerance band. The value can only be entered as positive
value.
Negative
tolerance “Negative tolerance” and the present measurement from Channel 1 form the
lower limit for the tolerance band. The value can only be entered as negative
value.
Positive
hysteresis If a positive tolerance infringement has occurred, then the present
measurement from Channel 2 — 6 must first fall below the measurement from
A
A comparison of the tolerance band is only possible within the
scaling limits. In the event of overrange/underrange on a channel,
there will be LOW as well as HIGH alarm for all the other functions
(in this particular case: positive and negative tolerance).
Thin/thick
Thin Thick