Filter
Top Products
USING THE COMBISCOPE INSTRUMENTS 3 - 57
The following table shows the relation between the trace acquisition length
(TRACe:POINts) and the available channel (CHx) and memory traces (Mx).
Table 3.2 Relation between acquisition length and available trace memory
Note: Delayed Time Base (DTB) acquisition traces are only saved in the CH1
to CH4 memory, when the acquisition length is 512 samples. DTB
acquisitions can only be defined via front panel operations.
3.10.1 Trace formatting
The FORMat command allows you to format the resolution of trace sample
values. The resolution is determined by specifying the number of bits used to
code the sample values of all trace acquisitions. Trace samples can be
programmed to be formatted as 16 bits (2 bytes) or as 8 bits (1 byte). After a
*
RST
command, the number of trace sample bits is 16 (2 bytes). Notice that the
contents of acquisition and register space is not cleared when a different trace
format is programmed.
PROGRAM EXAMPLE:
CALL Send(0, 8, "
*
RST", 1) ’
Length of trace samples = 16 bits
CALL Send(0, 8, "FORMat INTeger,8", 1) ’
Length of trace samples = 8 bits
TRACe:POINts CHANNELS: MEMORY REGISTERS:
STANDARD:
512
2K
4K
8K
EXTENDED:
512
8k
16K
32K
(PM33x0B)
4(2+EXT)
4(2+EXT)
2(2)
1(1)
(PM33x0B)
4(2+EXT)
4(2+EXT)
2(2)
1(1)
M1 .. M8
M1 .. M2
M1 .. M2
M1 .. M2
M1 .. M50
M1 .. M2
M1 .. M2
M1 .. M2
Examples:
- Standard memory 4K acquisition length allows, for example:
CH1 + M1_1 + M2_1 + CH3 + M1_3 + M2_3
- Extended memory 32K acquisition length allows, for example:
CH2 + M1_2 + M2_2