VXi VT1422A 사용자 설명서

The following example shows three scalars being written with the associated update 
command following. When the ALG:UPD:CHAN command is received, it will read 
the current state of channel 108, bit 0. At the beginning of the UPDATE phase, a 
check will be made to determine if the stored state of channel 108 bit 0, is different 
from the current state. If so, the update of all three scalars take effect next Phase 2.

INIT

ALG:SCAL 'ALG1','Setpoint',25

ALG:SCAL 'ALG1','P_factor',1.3

ALG:SCAL 'ALG2','P_factor',1.7

ALG:UPD:CHAN 'I108.B0'

 specifies how many updates may 

need to be performed during phase 2 (UPDATE). The DSP will process this command 
and assign a constant window of time for UPDATE.

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The default value for <num_updates> is 20. If it is known that fewer updates 

may be needed, specifying a smaller number will result in slightly greater loop 
execution speeds.

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This command creates a time interval in which to perform all pending algorithm 

and variable updates. To keep the loop times predictable and stable, the time 
interval for UPDATE is constant. That is, it exists for all active algorithms, each 
time they are executed whether or not an update is pending.

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*RST Condition: ALG:UPD:WIND 20

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When Accepted: Before INIT only.

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Send with VXIplug&play Function: hpe1422_cmd(...)

A maximum of eight variables will need to be updated during run-time.

ALG:UPD:WIND 8

numeric (int16)

1 - 512

none