Specifications

Analog Output Modules
254
31007715 6/2008
STB AVO 1250 Functional Description
Functional
Characteristics
The STB AVO 1250 is a two-channel analog output module that sends data to two
voltage field actuators. The following operating parameters are user-configurable:
z the voltage range of the module
z the module’s analog output period
z the fallback states of the two analog output channels
Using the RTP feature in your NIM, you can access the value of the following
parameter:
z Analog Output Period
Refer to the Advanced Configuration chapter in your NIM manual for general
information on RTP.
Voltage Range The voltage range of the module is user-configurable for either:
z 0 to 10 V (with 12-bit resolution)
z +/- 10 V (with 11-bit + sign resolution)
By default, the range is 0 to 10 V. If you want to transfer signals in the +/- 10 V range
or return to the default setting, you need to use the Advantys configuration software:
The voltage range parameter is configurable at the module level—both output
channels must operate over the same voltage range.
Note: Standard NIMs with firmware version 2.0 or higher support RTP. RTP is not
available in Basic NIMs.
Step Action Result
1 Double click on the STB AVO 1250 module
you want to configure in the island editor.
The selected STB AVO 1250 module
opens in the software module editor.
2 From the pull-down menu in the Value
column of the Voltage Range row, select
the desired voltage range.
Two choices appear in the pull-down
menu—0to10VDC and -
10 to +10 VDC.
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