PMA KS 98, Руководство пользователя

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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 output
allocation is:
Output
d8 d7 d6 d5 d4 d3 d2 d1
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 1
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
Signal converters
9499 040 50611
ABIN (analog
i
binary conversion) 66