Fifo Command List - Gilson 155 User Manual

Appendix

FIFO Command List

The compressed digital data from every input and output channel can be read by the
master device. To determine what data is present on each channel, consult the mode
descriptions in Operation.
I=Immediate
B=Buffered
Command Type
0xxxx B
0 I
1xxxx B
1 I
2xxxx B
2 I
9 B
9 I
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Description
Flushes FIFO 0 (Output channel 1 data). The parameter xxxx
is a 4-digit number that sets the sampling rate up to 8000 in
0.01 Hz.
Reads FIFO 0 (Output channel 1 data).
Flushes FIFO 1 (Output channel 2 data). The parameter xxxx
is a 4-digit number that sets the sampling rate up to 8000 in
0.01 Hz.
Reads FIFO 1 (Output channel 2 data).
Flushes FIFO 2 (Output channel 3 data). The parameter xxxx
is a 4-digit number that sets the sampling rate up to 8000 in
0.01 Hz.
Reads FIFO 2 (Output channel 3 data).
Clears contact event FIFO and reset event timer.
Reads event FIFO. Return string "Xttttttt" where "X"
describes the state of the two contact inputs:
X Autozero Event
@ Open Open
A Open Close
B Close Open
C Close Close
And, the string "ttttttt" identifies the time since the last
change; expressed as a hexadecimal value in 10 ms.
The immediate 9 command returns "|000000" if no event is
available in the queue.
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