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<?xml-stylesheet type="text/xsl" href="..\..\XSLTemplates\CommandsStyleSheet.xsl"?>
<Command>
<Name>plot headtest</Name>
<Description>
<DescriptionText><text>
Initiates a command to initialize the head and pll into a plot mode without
moving the carriage.  This command is used so that the system can be setup to
give all the timing and sclks as if an image were running, but without actually
sending an image or moving the carriage.  Typically it is used to test the
focus servo or test and setup focus with a new media.  When running in headtest
mode, one can dwell for as long as desired under the operating conditions used.
To change operating conditions, just terminate the command and change things
and re-start it.  Using the older method of "drum spin" "pll on" does not set
up the image timing conditions or changes to that setup, whereas "plot
headtest" does.
</text></DescriptionText>
</Description>
<AppliesTo>
<UnnumberedList>
<ListItem><TextApplies>All</TextApplies></ListItem>
</UnnumberedList>
</AppliesTo>
<Syntax>
<NumberedList>
<ListItem><Text>
plot headtest
</Text></ListItem>
</NumberedList>
</Syntax>
<Notes>
<DescriptionText><text>
For the MPE as the host do: "drum spin" wait for it to finish, then "plot
headtest".  Note that, currently, the head will not be completely setup, and
you will need to issue a system level "focus on" followed by "focus off" to
complete the setup of all the paramteres in the head.  In some cases the focus
on/off toggle is undesireable and there is an open action to have "plot
headtest" do the complete setup of the head (see bugbase #1828). To stop do:
"plot stop" "drum idle".
</text></DescriptionText>
<DescriptionText><text>
For the MCE as the host do: "plot headtest".  The command will spin the drum.
To stop do: "plot stop".
</text></DescriptionText>
</Notes>
<SeeAlso>
<UnnumberedList>
</UnnumberedList>
</SeeAlso>
<OtherLinks>
<Link><LinkAddress>..\..\ShowAllErrors.htm</LinkAddress><LinkTitle>Firmware 0 Error Index</LinkTitle></Link>
<Link><LinkAddress>..\..\ShowAllCommands.htm</LinkAddress><LinkTitle>Firmware 0 Command Index</LinkTitle></Link>
<Link><LinkAddress>..\..\ShowAllNVS.htm</LinkAddress><LinkTitle>Firmware 0 NVS Index</LinkTitle></Link>
</OtherLinks>
<Updated>
Updated: Wed Jul 16 19:39:12 2008 PST
</Updated>
<Links>
</Links>
</Command>
