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Entry  Tue Oct 4 14:41:47 2011, Jenne, Update, IOO, MC Trans channels are digital 0 
    Reply  Tue Oct 4 15:57:30 2011, Suresh, Update, IOO, MC Trans channels are digital 0 
Message ID: 5614     Entry time: Tue Oct 4 15:57:30 2011     In reply to: 5612
Author: Suresh 
Type: Update 
Category: IOO 
Subject: MC Trans channels are digital 0 

I thought this problem might be arising because the MC2_TRANS QPD signals are not being passed from the c1mcs to c1ioo models over the rfm.   But there was no way to check if there is any data being picked up in c1mcs model.  So I copied the MCTRANS block from the c1ioo model into the c1mcs.  This block takes the four segments of the MC2_TRANS QPD and computes the pitch, yaw and sum signals from that.   It also exports these into epics channels.  I then recompiled and started the c1ioo c1mcs and c1rfm models. 

Restared fb at

Tue Oct  4 15:19:10 PDT 2011

Koji then noted that the MC2_TRANS filter banks in c1rfm and in c1ioo were showing nonzero values.   So the signals were infact reaching the c1ioo model.  They were being blocked by the INMATRIX (which the autoburt had not restored) of the MC_TRANS block, because all its elements were zero.  We burtrestored the c1iooepics to about 30hrs ago and then MC_TRANS signals were back in the LOCK_MC screen.

 

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