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Entry  Thu Sep 29 03:43:20 2011, kiwamu, Update, ASC, wrong channel assignment on IPPOS 
    Reply  Mon Oct 3 17:57:12 2011, kiwamu, Update, ASC, IPPOS fixed 
Message ID: 5605     Entry time: Mon Oct 3 17:57:12 2011     In reply to: 5574
Author: kiwamu 
Type: Update 
Category: ASC 
Subject: IPPOS fixed 

The input matrix of IPPOS were fixed so that the horizaontal motion correctly shows up in X and the vertial is Y.

 

(what I did)

 + The data base file, QPD.db, were edited.

  QPD.db is a part of the c1isxaux slow machine and it determines the input matrix for deriving the X/Y signals from each quadrant element.

 + The previous input matrix was :

      X = (SEG1 + SEG4) - (SEG2 + SEG3)

      Y = (SEG1 + SEG2) - (SEG3 + SEG4)

 + The new matrix which I set is :

     X = (SEG1 + SEG2) - (SEG3 + SEG4)

     Y = (SEG1 + SEG4) - (SEG2 + SEG3)

    The new matrix is a just swap of the previous X and Y.

 + Then c1isxaux was rebooted by :

     telnet  c1iscaux

     reboot          

 + The I did the burt restore it to this morning.

Quote from #5574

The channels for IPPOS had been assigned in a wrong way.

 

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