Specifications
Analog Input Modules
208
31007715 6/2008
Maximum Count and RTP:
The maximum count parameter is represented as a signed 16-bit number. To
access it using RTP, write the following values to the RTP request block:
Determining
Offset and
Maximum
Count Values
To apply offset and maximum count to an analog channel:
Length 2
Index (low byte) 0x01
Index (high byte) 0x24
Sub-index 1 for channel 1
2 for channel 2
3 for channel 3
4 for channel 4
5 for channel 5
6 for channel 6
7 for channel 7
8 for channel 8
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 1400
module in the island editor.
The module editor for the selected
STB AVI 1400 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 the
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 the
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
Animation sheet.
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.
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