West Control Solutions KS98-1 - Manual (Page 116)

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