Specifications

Analog Input Modules
31007715 6/2008 233
Determining
Offset and
Maximum
Count Values
To apply offset and maximum count to an analog channel:
Sub-index 1 for channel 1
2 for channel 2
3 for channel 3
4 for channel 4
Data Bytes 2 (high byte) & 1 (low byte) 31 233 to 32 767 (0x7A01 to 0x7FFF))
Step Action Result
1 Connect the Advantys configuration
software to a physical island.
The software will be in online mode.
2 Double-click on the STB AVI 0300 module
in the island editor.
The module editor for the selected
STB AVI 0300 module will open.
3 Open the I/O Image Data Animation
sheet, which can be accessed from the
module editor in the Advantys
configuration software when it is online.
4 Apply a value corresponding to minimum
input (0 VDC or 1 VDC, depending on the
selected range), and read the analog input
channel’s data in the I/O Image Data
Animation sheet.
Ideally, the channel data should read 0. If
this is true, then no offset adjustment is
necessary. If the data value is not 0, make
a note of the actual data value.
5 Apply a value corresponding to maximum
input (5 VDC or 10 VDC, depending on
the selected range), and read the analog
input channel’s data in the module’s I/O
Image Data Animationsheet.
Ideally, the channel data should read
32 000. If this is true, then no maximum
count adjustment is necessary. If the data
value is not 32 000, make a note of the
actual data value.
6 If adjustments need to be made, take the
Advantys configuration software offline.
7 Double-click on the STB AVI 0300 module
in the island editor.
The module editor for the selected
STB AVI 0300 module will open.
8 Open the Properties sheet in the module
editor. In the Offset value field, enter the
data value that you read in step 4. In the
Maximum Count value field, enter the
data value that you read in step 5.
9 Save the new configuration parameters. When the configuration is downloaded to
the physical island, the new offset and
maximum count parameters will be
applied to the analog input channel.
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