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Analog-pulse conversion 118, Puls 118 – West Control Solutions KS98-1 User Manual

Page 118

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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