Reports until 16:06, Thursday 18 June 2015
H1 DAQ (DAQ)
stefan.countryman@LIGO.ORG - posted 16:06, Thursday 18 June 2015 - last comment - 17:40, Thursday 18 June 2015(19225)
Checked code revision numbers for Timing System, found anomalies in all IRIG-B and Oscillator Locking devices
I used the sitemap to look at the code revision numbers of each timing device. All DuoTones, Master/Fanouts, and Comparators are programmed to the correct code revision (documented at https://awiki.ligo-wa.caltech.edu/aLIGO/TimingFpgaCode). The 3 issues are:

1) The C_MA_A IRIG-B in the MSR shows Rev. 0. This is a known issue and will be corrected by reprogramming the IRIG-B when possible. The IRIG-B seems to be producing the correct time code output, so we're going to test the effect of a temporary (< 15 minute) interruption to the IRIG-B signal on an IRIG-B device in the test stand to see whether we can reprogram the MSR IRIG-B without causing hiccups.

2) The other 2 IRIG-B in Y_FO_A and X_FO_A show Rev. 133. They should show Rev. 113. They are otherwise operating nominally. It is possible that the timing wiki needs to be updated, or that the revision number was entered incorrectly in the firmware source code.

3) All of the Oscillator Locking slaves in Y_FO_A, X_FO_A, and C_FO_A show Rev. 83, which is the deprecated code. They are operating nominally. Again, this could be an incorrect revision number.

We need to check whether 2) and 3) are meaningful problems that need correction.
Comments related to this report
daniel.sigg@LIGO.ORG - 17:40, Thursday 18 June 2015 (19232)

Depreciated is ok.

IRIG-B revision 85 is reported as 133 due to a decimal-to-hex conversion error. Not enough reason to update.

The error reporting will take this into account, when the updated EtherCAT code is loaded.