17.4
VTREND ( trend display )
General
Function VTREND collects 100 values of the analog input ‘
x1
‘ in a shift register and permits value display as a trend
curve. When the shift register is filled with 100 values, the value 100 samples ago is overwritten by a new value. With
input sample ‘
sample
‘ not used, data recording is synchronous with the time units specified in the configuration.
Trigger pulses at the ‘
sample
‘ input permit asynchronous data recording.
g
With voltage failure, the sampled values remain unchanged.
Inputs/outputs
Digital inputs:
hide
Display suppression (with
hide
= 1 the page in the operation is not displayed).
disable
The digital input can be used to interrupt automatic or triggered sampling (high-active).
reset
The digital input deletes the shift register and resets trend measurement.
sample
If the digital input is wired, sampling is triggered by a positive flank (0
r
1) at this input. In this
case, the adjusted sampling interval (configuration) is not effective.
Digital outputs:
ready
After filling the shift register with 100 values first, the digital output is set to high.
Analog inputs:
x1
Process value to be displayed as trend (default = 0)
Analog outputs:
X-100
The value of the shift register which is overwritten by the next sample value is provided at the
analog output (value 100 samples ago).
Configuration data
Configuration Description
Values
Default
Unit
Unit of sampling interval
seconds (
s
)
sec.
t
Minutes (
m
)
min.
Hours (
h
)
h
Sample
Value of sampling interval in the unit defined with ‘Unit‘.
0,2...200000
1
Dp
Digits behind the decimal point for value displays
0 ... 3
0
X 0
Display scaling start value (0%)
-29999...200000
0
X100
Display scaling end value (100%)
-29999...200000
100
9499 040 50611
Visualization
111
VTREND ( trend display )
Unit
Sample
sample
disabl
reset
hide
. . .
98
99
100
1
2
3
4
X 0
X 100
Dp1
A.A
x1
X-100
ready
Содержание KS 98
Страница 8: ...Description 9499 040 50611 Construction 8...
Страница 10: ...Important technical data 9499 040 50611 Further external in and outputs 10...
Страница 12: ...Versions 9499 040 50611 I O modules for units with modular option c basic card 12...
Страница 14: ...Front view 9499 040 50611 14...
Страница 16: ...Mounting 9499 040 50611 16...
Страница 26: ...Maintenance 9499 040 50611 Further information 26...
Страница 36: ...Scaling and calculating functions 9499 040 50611 LG10 10s logarithm 36...
Страница 74: ...Signal converters 9499 040 50611 MEAN mean value formation 74...
Страница 128: ...KS98 I O extensions with CANopen 9499 040 50611 RM_DMS strain gauge module 128...
Страница 132: ...CSEND Send mod blockno s 21 23 25 27 No 57 132...
Страница 140: ...Description of KS98 CAN bus extension 9499 040 50611 140...
Страница 202: ...Controller 9499 040 50611 Process value calculation 202...