West Control Solutions KS98-1 - Manual (Page 118)

III-5.4 PULS (analog pulse conversion (No. 73))
n Puls h
x x
x x
1 0
100 0
= ×
-
-
n =
x0 =
x100 =
x1 =
Number of pulses per hour
Parameter
Parameter
Analog input
Input variable x1 is converted into a number of pulses per hour. Parameter Puls/h is used for selecting the maximum
number of pulses at x1 ? x100. For x1 ß x0 no pulses are output.
Within range x0 - x100 , input value x1 is converted linearly into pulses per hour.
The parameter settings result in a straight line between 0 and 3600 pulses /h according to input x1The pulse length
corresponds to the sampling interval (100, 200, 400 or 800ms) adjusted for this block. The length of switch-off time be -
tween pulses is not always equal and dependent of the configured sampling interval.
The sampling interval allocation also determines the maximum number of pulses/hour, which can be realized. If higher
values than can be output due to the sampling interval are entered in parameter Puls/h, limiting is to the maximum
possible number of pulses.
Maximum number of pulses:
100 ms = 18 000 pulses/h
200 ms = 9 000 pulses/h
400 ms = 4 500 pulses/h
800 ms = 2 250 pulses/h
9499-040-82711 Signal converters
PULS (analog pulse conversion (No. 73)) III-118
x1 z1
x0 x100 Puls/h
x1
n
x0 x100
Puls/h
0
n=Puls/h
x1-x0
x100-x0
Fig. 1
Puls/h = max. Pulsenumberl/h
x0
= 0% of Pulse/h
x100 = 100% of Pulse/h