Fluke PM-3384B, PM-3380B, PM-3390B, PM-3370B, PM-3394B user manual Reading data from trace memory

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3.10.4Reading data from trace memory

The TRACe? query allows you to read the contents from one of the following trace memory registers:

•An acquisition trace from one of the input channels (CH1 to CH4).

•Previously stored trace data from one of the memory registers (M1 to M8 or to M50). This can be either an acquisition trace or a trace of constant values (refer to section 3.10.3).

•The result of a post processing function; CALCulate1 in M1 and CALCulate2 in M2 (refer to section 3.9 "Post processing").

PROGRAM EXAMPLE:

’*****

’Read the actual channel 1 trace into trace1$ and the filtered ’channel 1 trace into trace2$.

’*****		’Dimensions trace buffer 1
DIM trace1 AS STRING * 2000
DIM trace2 AS STRING * 2000		’Dimensions trace buffer 2
CALL Send(0, 8,	"TRACe? CH1", 1)	’Requests for channel 1 trace
CALL Receive(0,	8, trace1$, 256)	’Reads channel 1 trace into trace1$
CALL Send(0, 8,	"CALCulate:FEED ’CH1’", 1)	’Input source = CH1
CALL Send(0, 8,	"CALCulate:FILTer:FREQuency:STATe ON", 1)

’Enables frequency filtering; the filtered channel 1 trace is stored in M1_1.

CALL	Send(0, 8,	"TRACe? M1_1", 1)	’Requests for M1_1 trace
CALL	Receive(0,	8, trace2$, 256)	’Reads M1_1 trace into trace2$