51
10 Configuration level 1
Absolute
At the time of alteration, the limit comparator acts in accordance with its func-
tion.
Relative
The limit comparator is in the OFF status.
An alteration of the limit value or the (limit comparator) setpoint could cause
the limit comparator to switch ON. Such a reaction will be suppressed, and
this condition maintained until the (limit comparator) process value has
moved
away
from the switch-on region (grey area).
Example:
Monitoring the (controller) process value x with function lk4
setpoint alteration w
1
→
w
2
a) Initial condition
b) Condition at time of alteration.
The limit comparator remains “OFF” although the process value is within the
switch-on region.
c) Stabilised condition
The limit comparator again operates according to its function.
This function also prevents a limit comparator from being triggered during the
start-up phase.
Summary of Contents for DICON 401
Page 22: ...4 Electrical connection 22...
Page 34: ...6 Profile program start 34...
Page 74: ...10 Configuration level 1 74...