5-40
There are a number of points you should be aware of before you start preparing the data:
1. Each channel has its own sequence table buffer. Therefore, make sure you selected the correct active
channel (with the INST:SEL command) before you download sequence table data to the generator
2. Minimum number of sequencer steps is 1; maximum number is 4096
3. The number of bytes in a complete sequence table must divide by 8. The Model 2074 has no control
over data sent to its sequence table during data transfer. Therefore, wrong data and/or incorrect
number of bytes will cause erroneous sequence partition
4. The LSB bit is the only bit used in the mode byte. This bit has an affect on the operation of the
sequence only when Mixed Step Advance mode is activ
e. With the LSB bit set to “0”, the sequence
generator will advance to the next step automatically. With the LSB bit set to “1”, the sequence
generator will advance to the next step only when a valid trigger signal will be sensed at the trigger
input.
5. SYNC state bit is valid only when the sequence sync type is BIT
Figure
5-5, 64-bit Sequence Table Download Format
Parameters
Name
Type
Description
<binary_block
>
Binary
Block of binary data that contains information on the
sequence table.
SEQuence:ADVance{AUTOmatic|STEP|SINGle|MIXed}(?)
Description
This command will select the sequence advance mode. The way the instrument advances through the
sequence links can be specified by the user.
Parameters
Name
Type
Default
Description
AUTOmatic
Discrete
AUTO
Specifies continuous advance where the generator
steps continuously to the end of the sequence table
and repeats the sequence from the start. For
example, if a sequence is made of three segments 1,
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