Operating instructions
M300USERSGUIDE SEA
MAINWINDOW
67
be the cause of these problems.
Frequency(hz)
This is the system frequency. This value is the value the M300 system board uses to generate
interrupts.
Monitor(hz)
The monitor is used to check if the system frequency actually matches the requested frequency.
The number of interrupts must match the system frequency, otherwise this is an serious issue.
The system shows current value, minimum value and maximum values for monitor (frequency).
MonitorError
The monitor error keeps track of the number of times that the system frequency didn’t produce the
requested number of interrupts.
The monitor error must be 0. Otherwise the user must determine the cause of these error. Most
likely issues could be trouble with acquisition and buffer setup. Possibly hardware issues on the
system board. Also, invalid setup causing interrupt issues.
BCCard(s)
When using the BC635/BC637 modes for time synchronization to IRIG-B source, this field shows
the difference in seconds between M300 time and IRIG-B time on the card.
The BC635/BC637 is configured in the system board setup dialog.
BCCardAdjustCount
When using the BC635/BC637 modes for time synchronization to IRIG-B source, this field shows
the number of times the M300 time was adjusted to the IRIG-B time.
We usually use a 1 ms time difference allowed between clocks. This should not cause the time adjust
to increment too often. If we count once per hour or so, is a good adjustment count.
The BC635/BC637 is configured in the system board setup dialog.