West Control Solutions KS98-1 User Manual

Page 116

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Converting a BCD number into an analog value
BCD input values at inputs

d1...d4 and d5...d8 are converted into a floating point number and available at output y1.

With a BCD number > 9 at inputs

d1...d4 or d5...d8, output variable y1 is limited to 9. Out of the range, the out-

put allocation is:

Output

d1

d2

d3

d4

d5

d6

d7

d8

0

0

0

0

0

0

0

0

y1 =

0

0

1

1

1

1

1

1

1

1

y1 =

9

9

Converting a value into selection “1 out of 8" (

Select = ana<->1/8)

An analog input value at

x1 (range 0...8) selects none or one of the 8 outputs z1...z8.

Example for conversion value (x1 = 5) into selection:

Input

z1

z2

z3

z4

z5

z6

z7

z8

x1 = 5

0

0

0

0

1

0

0

0

Out of the range, the output allocation is:

Input

z1

z2

z3

z4

z5

z6

z7

z8

x1 ß 0

0

0

0

0

0

0

0

0

x1 ? 8

0

0

0

0

0

0

0

0

Conversion Selection “1 out of 8" into analog value (

Select = ana<->1/8)

Individual digital input allocation

d1...d8 result in an analog output variable at y1 according to the allocated input

value.

Example for conversion value (x1 = 5) into selection:

Output

z1

z2

z3

z4

z5

z6

z7

z8

y1 = 5

0

0

0

0

1

0

0

0

If more than one of inputs d1...d8 is active, output variable y1 is set to 0.

Inputs/outputs

Digital inputs

d1...d8

Digital inputs for binary value, BCD value or selection 1 out of 8.

Analog input

x1

Analog input for binary value, BCD value or selection 1 out of 8.

Digital outputs

z1...z8

Converted binary value, BCD value or value selection.

Analog output

y1

Converted analog value.

Configuration:

Configuration Description

Range

Default

Select

Mode of

conversion

analog/binary conversion and binary/analog conversion

ana<->bin

t

Analog/BCD conversion and BCD/analog conversion

ana<->BCD

Selection 1 out of 8

ana<->1/8

9499-040-82711

Signal converters

ABIN (analog

i binary conversion (No. 71))

III-116

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