Specifications

Analog Input Modules
140
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:
Applying 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
Data Bytes 2 (high byte) & 1 (low byte) 31 233 to 32 767
Step Action Result
1 Connect the Advantys configuration
software to a physical island.
The software will be in online mode.
2 Double-click the appropriate
STB ACI 8320 module in the island
editor.
The module editor for the selected
STB ACI 8320 module will open.
3 Open the I/O Data Animation sheet,
which can be accessed from the module
editor in the Advantys configuration
software when it is online.
4 Apply 4 mA to the appropriate field sensor
and read the analog input channel’s data
in the I/O 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 Now apply 20 mA to the field sensor and
read the analog input channel’s data in
the module’s I/O 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.
6 If adjustments need to be made, take the
Advantys configuration software offline.
7 Double-click the appropriate
STB ACI 8320 module in the island
editor.
The module editor for the selected
STB ACI 8320 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
Max. Count value field, enter the data
value that you read in step 5.
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