Specifications

Analog Input Modules
234
31007715 6/2008
Averaging You may apply a filter that smooths the values of the analog inputs reported by the
STB AVI 0300. The Advantys configuration software allows you to average over a
specified number of samples. By default, the number samples averaged is one (no
averaging); you may have a filtering average over up to 80 samples.
Averaging is applied on a per-channel basis.
This parameter is represented as an unsigned 8-bit number. To access this
parameter using RTP, write the following values to the RTP request block:
Range You may configure the operating range of the STB AVI 0300 on a per-channel basis.
z +1to5VDC
z 0to5VDC
z 0to10VDC
z +/-5 VDC
z +/-10 VDC
+/-10 VDC is the default operating range.
Channel
Operation
(Enable/Disable)
The STB AVI 0300 has an input channel enable/disable on a per-channel basis. You
should disable the unused inputs. By default, all inputs are enabled. When you
disable a channel, the status byte and channel data return all zeros—the fault
indicator does not blink due to channel-specific errors.
z channel enable (default)
z channel disable
Note: The module detects PDM error and flashes the ERR LED even if all four
channels are disabled.
Step Action Result
1 Double click the STB AVI 0300 module you
want to configure in the island editor.
The selected STB AVI 0300 module opens
in the software module editor.
2 In the Configured Value column of the
Averaging row, enter a decimal or
hexadecimal value in the range 1 to 80
(0x50).
When you select the Averaging value, the
max/min values of the range appear at the
bottom of the module editor screen.
Length 1
Index (low byte) 0x02
Index (high byte) 0x24
Sub-index 1 for channel 1
2 for channel 2
3 for channel 3
4 for channel 4
Data Byte 1 1 to 80 (0x50)
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