HBM ClipX Bedienungsanleitung Seite 110

nal sources is written to the FIFO memory. All six difference values have to set >0 so
that the difference trigger is activated – see
170.
2. A command can be used to make a single entry for all FIFO channels (signal
sources).
The time of the command is used as the start time (current date and time and time
channel = 0). A running recording will be restarted, but the FIFO memory will not be
deleted. A recording that is still running should therefore be stopped and the FIFO
memory read out. Depending on the control flag bits 1 and 2, further recording takes
place afterwards.
Signal sources for all 6 possible FIFO channels must be defined. If a channel
is not needed, an existing signal source can be used.
How the FIFO works
At first every millisecond is checked whether bit 8 of the FIFO control flags is set. If so,
start date and time as well as an entry (all signal sources) are recorded and waited for
the next millisecond. Otherwise, depending on bit 0, the system either starts immedi-
ately or - with bits 1 and 2 - waits for a condition to occur at a later point in time. As
soon as the specified condition is fulfilled for the first time, the start also occurs at bits
1 and 2.
In the next millisecond after the start, the specified recording rate (number of values per
second) is observed first, before the digital conditions (flags) are checked with the value
to be used then. The system then checks whether difference conditions are specified
and whether one of these conditions is fulfilled. Only then an entry is made in the FIFO
(time and all signal sources).
FIFO control flags
Set the control flags to 0 to stop recording and clear the active fill mode.
108
„General and system objects" on page
Operation via Ethernet/OPC UA/PPMP
ClipX