Hi everyone,
Another IconNMR issue -- we are in Topspin 2.1pl8 with Diskless from 3.2 running
an AVANCE I. What is happening is every once in a while (generally about once a
week), the shimming on one sample fails, then the BSMS becomes unresponsive with
a red light on the LCB, the sample won't eject, and automation can't proceed until
the BSMS is power cycled.
First, we get a shim failure with the error:
"topshim: ILLEGAL TERMINATION of process 1076 due to signal 11 (segmentation violation),
Shim failed, Lock anomaly during acquisition"
Then the following sample fails with either the error "Failsafe detected hangup,
procedure: lock" or "Sample Changer Error: Empty answer from BacsCommand"
In the BSMS service tool, I find the errors:
"ERROR: B154 from BSMS: Protocol violation by LCB
A slave device signaled an error with the mode bits but it did not give an error
message when the CPU asked for it."
And:
"ERROR: B077 from BSMS: VME Timeout"
And:
"ERROR: 0012 from TOOL: without additional error description"
At the instrument, the BSMS becomes unresponsive--LCB error light comes on and the
last sample to run won't eject. The fix seems to be to switch the BSMS off and on
and restart Topspin, and things are back to normal for a while.
I've been talking with Bruker about this for *many* months, but haven't really gotten
anywhere. Cooling fans and power supplies are working and voltages are normal. I have
some notion that I need to upgrade the firmware for the SCB-M, but I'm not sure this
makes sense. At any rate I'm not able to because I get a "communication error" early
in the process. The other boards (except SLCB) download firmware fine.
So, I thought I'd ask if anybody has ever experienced this before?
Alex
Alex Greenwood
Manager, NMR Facility
University of Cincinnati
123C Crosley Hall
(412) 952-8044
Received on Thu May 20 2021 - 05:27:56 MST