SRI GCS Literature Detailed ex SRI website 2014 - page 228

14
If anactuator set toF (forwarddirection) is inposition4and thecommand is sent togo to
position3, itwillgoall thewayarounduntil it reachesposition3 insteadof takingonestep
backwards. For theactuator tocalculate thedirectionwhich involves the leastmovement,
thedirectionmustbe set toA (shortest route).
Modesavailable:
Multiposition (3)
Examples
Command:
SM
<enter>
Returns:
SM
l
[0x0D] (
l
=current rotationdirection)
Command:
SMF
<enter>
Sets theactuator toonlymove in the forwarddirection
SO
[
nn
]
Sets theoffset valueof thefirstposition tobeanynumber from1–96,
where
nn
=1–96.
This featuremakes itpossibletocontrolmorethanoneactuatorwithasinglecomputer. The
actuator’s SO value canbe set from“1”to“96”,minus the current NP value (thenumber of
positions the actuator is set to index). Once an SO value is set, that value is the first (or
lowest)positionanactuatorwill recognize. ThefactorySOsetting is“1”,soanactuatorwithan
NP value of 10 responds tomove commands for positions “1” to “10”. If the SO value is
changedto“10”,theactuatorwill respondonlytomovecommands forpositions“10”through
“19”. For any setting of SO andNP, the lowest validpositionwill be the SO value and the
highest validpositionwill be theSOvalueplus theNPvalueminus 1;
i.e.
, theactuatorwill
respond to commands for position SO throughposition {SO+NP - 1}.Refer to“Using the
Offset Feature”onpage19.
Modesavailable:
All (butusedprimarily inmode3,multiposition)
Examples
Command:
SO
<enter>
Returns
SO
nn
[0x0D] (
nn
=currentoffset value)
Command:
SO10
<enter>
Sets the offset value to 10. The valve will now start counting as
if 10=position1
STAT
Returns (via the serial port) the following information,
CP= currentposition
AM= currentmode
NP= number of ports (modes 1 and 2) or positions (mode 3) on the
current valve
(Seealso
CP
,
AM
,and
NP
commands)
Modesavailable:
All
Example
Command:
STAT
<enter>
Returns:
Current statusof theactuator
TM
Returns theamountof time, inmilliseconds, requiredby thepreviousmove
Modesavailable:
All
Example
Command:
TM
<enter>
Returns:
Number ofmilliseconds taken tomove from theprevious position
to thecurrentposition
Optional Serial Interface
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