sequence before sending any commands if the results are wanted.
2. Although the parameters sent to each unit are identical, the LA102 ignores the
sequence number and the LA101 ignores the register number, since they are both
irrelevant. Similarly, the LA102 only uses the channel number to determine whether the
sequence is being run on one or two channels (it does not take any notice of which
channel is specified, since this is determined by the FSK sent from the LA101).
Set Sequence Parameters: SPn,m
SP set sequence parameters Sequence parameters
This command sets two miscellaneous parameters which affect sequence reception. The
first is the filter code (n) which specifies which rectifier and filter should be used for level
measurements (test level and sweep segments): 1 is the default (2-100kHz) while 2 selects
the audio band filter (22Hz-22kHz bandwidth), equivalent to pressing
in
sequence mode (see section 3.1).
The second parameter m is the time-out period (0-255) in units of 0.1s (VERY
approximately − the actual time depends upon the input signal). If no FSK is received
within the time-out period then the LA102 aborts and generates error 10, as explained
above. m=0 (no time-out) is permitted, but the default setting is 100. SP without
parameters restores the default settings (1 and 100).
Note for advanced users: Other filters can also be used by setting n to 16f+p where f is
the function (1 to 5) and p is the option number (1-15). This is similar to using
, as
explained in section 3.22, and is really for very specialist use (and for testing the internal
filters in the LA102).
9.15 Defining a Sequence Defining a sequence
The sequence definition takes the form of a single line of text (up to 250 characters), as
explained in section 4.1. Any of the 11 sequences can be defined, but it is usual to only
modify sequence number 0, as this is reserved for remote use and is not accessible from
the keyboard. Another use of this command is to set up the 10 sequence definitions ready
for a particular application, in which case all 10 can be defined using 10 separate
commands.
Define Sequence: 1DSn,xxx...
DS define sequence
Defines sequence n (0 to 10) to be the sequence definition xxx. If n is omitted sequence 0
is defined. The sequence definition xxx... can contain any of characters from the LA101
character set (as shown in section 4.2), and may contain text for screen display. For
example:
1DS1,"GENERAL/TAPE TEST"TRCINZ
1DS2,"TONE BURST""5kHz 0.1s +6dB"!5000,100,+6,0,900
1DS3,"TOLERANCE DEMO"TUD|14
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9. Remote Control
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