Fluke PM-3380B, PM-3390B, PM-3370B, PM-3394B, PM-3384B user manual Trace Memory, Trace memory control

3 - 56 USING THE COMBISCOPE INSTRUMENTS

3.10 Trace Memory

The trace memory of the CombiScopes instruments consists of space for channel acquisition traces (CH1 to CH4) and memory register traces (M1 to M8 and M9 to M50 extended). The amount of acquisition and register space depends on the following:

•Whether the CombiScope instrument is equipped with standard or with extended memory.

•The specified acquisition length (number of trace samples) with the TRACe:POINts command.

Example:

Send → TRACe:POINts CH1,8192

This command specifies an acquisition length of 8192 samples for all traces.

Notes: - Only the following trace acquisition lengths can be programmed: 512, 2024 (2K), 4096 (4K), 8192 (8K), 16384 (16K), or 32768 (32K)

-If a different acquisition length is programmed, the contents of all acquisition and register space is cleared. So, all previously stored traces are lost!

-After a *RST command, the number of trace samples is 512.

-The resulting traces of the post processing functions are always stored in memory register 1 for CALCulate1 functions and in memory register 2 for CALCulate2 functions.

SENSe

TRACe

CH 1

CH 2

CH 3

M1_1

M1_2

M1_3

M2_1

M2_2

M2_3

M3_1

M3_2

M3_3

M50_1

M50_2

M50_3

CH 4

M1_4

M2_4

M3_4

M50_4

ST7163

Note:	For standard memory, 8 memory registers are available (M1 to M8).
	For extended memory, 50 memory registers are available (M1 to M50).
	Figure 3.20 Trace memory control

Note: CH3 and CH4 cannot be selected as the source for the PM33x0B CombiScope instruments. Instead the external channel can be selected, e.g., M1_E.