Campbell SAT ARGOS Bedienungsanleitung Seite 352

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ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048 Page D-48
6. OUTPUT AND CONTROL PROCESSES CATEGORY
6.1. DAC Analog Output Process
Inputs 4 Any sensor or process output
5 Maximum data limit, corresponding to 5 V output
6 Minimum data limit, corresponding to 0 V output
7 DAC number (1 - 36)
8 DAC update code 0 - 1
0 Output voltage changes at the end of the sample period
1 Output voltage changes whenever the input value changes
Outputs 1 Number of DAC counts
E1 Process Error Code
Assumptions The optional Digital to Analog expansion board must be present.
The output voltage will be scaled so that the minimum and maximum data limits correspond to 0 and 5 V
respectively.
The minimum configuration is for four DACs on a single board. DACs 1 through 8 will be on the first
expansion board, 9 - 16 on the second, and so on. If you program a DAC that is not present, you will be
warned when you exit from the Zeno Program Menu or save the configuration to EEPROM. The
following set of channels represents the maximum configuration:
DAC channels 1 through 8 on board 1
DAC channels 10 through 17 on board 2
DAC channels 19 through 26 on board 3
DAC channels 28 through 35 on board 4
Channels 9, 18, 27 and 36 are reserved for the AC excitation, which is a separate option that must be
factory-configured.
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