Measurement Specialties 9116 User Manual

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Pressure Systems, Inc.                                                                                        Model 9116 User’s Manual 
 
 
 
Page 47 
 
www.PressureSystems.com 
  Special augments of this command, called sub-commands (distinguished by the  
 first 
parameter 
ii) can configure each data stream with the particular channels  
  whose data are delivered, the datum format, the delivery rate, and other  
  characteristics.  It can also start, stop, or undefine a single stream or all defined  
  streams.   
 
 
The maximum rate of any one stream’s delivery is practically limited to the 
maximum possible scan and data conversion rate of all the module’s channels.  
Normally, these programmable host streams deliver host data at rates equal to or 
slower than this natural cycle.  For a typical application, the first stream delivers a 
few channels at a high rate as defined by a hardware trigger.  The second stream 
delivers other channels at a medium rate (some multiple of the trigger), and the 
third stream can deliver still other channels at a slow rate (a larger multiple of the 
trigger).  In another application, the three streams might all be programmed to 
deliver all the same channels, but the first stream might deliver pressure data 
(EU only) at high speed. The second stream might deliver pressure counts or 
volts at a slower rate, and the third stream might deliver temperature in all forms 
(EU, counts, volts) at a very slow rate. 
 
Note
 
Avoid confusing this Configure/Control Autonomous Host Streams 
command ‘c’ (lower case c) with the Configure/Control Multi-Point 
Calibration
 command ‘C’ (upper case C). Like ‘C’, but unlike most 
other module commands, all sub-commands of this command 
require a space
 between the command id (‘c’) and the first parameter 
(ii
).