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Limit value monitoring
The limit values can be configured and defined at a later time via the control interface/process out-
put. The following limit value ranges are possible:
Range defined by parameters
The value range is restricted by the 3 byte parameter length
Lower limit n
u
is 0…16 777 214 ms
Upper limit n
o
is 1…16 777 215 ms
The upper limit must be greater than the lower limit. The diagnostics messages ”upper limit wrong”
and ”lower limit wrong” indicate parameter definitions that are outside of the permissible value
range. The status bit is cleared when a valid value is entered.
Range defined via the control interface/process output
(LOAD_PREPARE/ LOAD_VAL)
Lower limit n
u
is 0…99 999 999 ms
upper limit n
o
is 1…100 000 000 ms
The upper limit must be greater than the lower limit. An error is indicated by the ERR_LOAD status
bit via the check-back interface/process input. The status bit is cleared when a valid value is entered.
Possible measurement ranges
With the measuring cycles selected here the display is updated after a maximum of 10 s.
Measuring cycle via number of
periods
t
min
/update after t
max
/uupdate after
1000 10 s/10 ms 10000 s/10 s
100 10 s/1 ms 100000 s/10 s
10 100 s/1 ms 1000000 s/10 s
1 1000 s/1 ms 10000000 s/10 s
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