Subject: Re: [sdss3-25mlog 1486] Re: MCP Change?
From: Kaike Pan
Date: Mon, 18 Nov 2013 15:08:25 -0700
John,
  Because we didn't finish the planned new point model last night, I =
reversed the fiducial table back to v1_110.
Tonight, we will start with APOGEE observation (wait for the telescope =
to be in equilibrium), then we=20
will switch to v1_111 for new pointing model if weather permits.  =20
-kaike
On Nov 18, 2013, at 1:38 PM, John K. Parejko wrote:
> The MCP has been rebooted (properly tagged as v6_6_17, as it should =
have been before), and should have the new gang connector logic now.
>=20
> The problem was that I had not declared v6_6_17 as current at the end =
of the summer, so when it was restarted to use the new fiducial tables, =
it went back to v6_6_16. That had the old plc logic. Craig and I =
encountered a slew of problems rebuilding the MCP to fix this problem.
>=20
> However, it looks like it's using mcp_fiducials v1_110, while v1_111 =
was tagged last night, but not made current. You should feel free to =
restart the mcp to use the new fiducial tables, if you wish.
>=20
> I'll be on a train tonight for a few hours as I return home, but =
should have internet for most of it, if you need me.
>=20
> John
>=20
> On 18Nov 2013, at 13:01, Dan Long  wrote:
>=20
>> Hi John,
>>=20
>>  I was looking into the gang connector status problem mentioned last =
night.  This is different than the previous issue of a stuck switch.
>>=20
>>  A check of things at the PLC level shows that all the switches are =
working properly.  However the definitions appear to have changed at the =
mcp level.   The switches in the gang connector itself appear to be =
ignored (no change of state when pressed).  The main cal port is now =
called "at cart", the 1m is "unknown", the sparse pack is "disconnected" =
and disconnected is "unknown".
>>=20
>>  Could the switching of the mcp to incorporate the new fiducial table =
have caused trouble with the gang connector bit definitions?  =20
>>=20
>>=20
>> 		Cheers,
>>=20
>> 		   Dan
>>=20
>=20
> --
> *************************
> John Parejko
> john.parejko@yale.edu
> http://www.astro.yale.edu/~jp727/
> 203 432-9759
> JWG 465
> Department of Physics
> Yale University
> New Haven, CT
> **************************
>=20
>=20
>=20
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