n Bit 15 = "0": à positive value
n Bit 15 = "1": à negative value
As soon as a measuring value exceeds overrange respectively unter-
range, the following value is returned:
n Measured value > overrange
–
32767 (7FFFh)
n Measured value < unterrange
– -32768 (8000h)
At wire break, parametrization error or deactivated analog part the
measuring value 32767 (7FFFh) is returned.
With this record set 9Eh you may de-activate the digital respectively
analog part. Please regard that in spite of the de-activation of the dig-
ital res. analog part, the process image for both components remains
reserved. The record set has the following structure:
Byte Bit 7 ... 0
0...1
n Bit 15 ... 0: Module selection
–
0000h: Activate digital and analog part (default)
– 0001h: De-activate digital part
– 0002h: De-activate analog part
In the following all measuring ranges are listed that are supported by
the analog part. The here listed formulas allow you to transform an
evaluated measuring value (digital value) to a value assigned to the
measuring range and vice versa.
Measuring
range
Voltage
(U)
Decimal
(D)
Hex Range Conversion
±10V 11.76V 32511 7EFFh overrange
10V 27648 6C00h nominal range
5V 13824 3600h
0V 0 0000h
-5V -13824 CA00h
-10V -27648 9400h
-11.76 -32512 8100h underrange
Behavior at errors
De-activate analog part
Digital/Analog conver-
sion
VIPA System 300SDeployment I/O periphery
Analog part
HB140 | CPU | 314-6CF03 | GB | 16-43 136
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