16
Self Test
N
indicating that segment N (noise) has failed. If the sequence passes the tolerance check
then an empty line will be returned in place of the failed segment list.
Set Tolerance: 2STn,xxx...
ST set tolerance
Set tolerance n (1 to 10) to be the tolerance definition xxx. The tolerance definition xxx...
should be as specified in section 5.4 and can contain any of characters from the LA102
character set (as shown in section 5.6), but it must not contain a CR character. For
example:
2ST1,"PXR5 SPECIFICATION" T+-0.5<0.2 U+1-2 D-50,-55,-52
2ST2,"DEMONSTRATION" T|1 X+1-2,,,|1,,,|0.5,,,,,,,,|1,,|2
Note that the ± character is not a standard ASCII character, so the | character (ASCII
124) should be used instead, as in the last example above. Alternatively, a ‘+-’ character
pair can be used. Note that one results memories will be lost when user tolerances are
defined but it becomes available again when all user tolerances are cleared. To clear a
tolerance send an STn command without a tolerance string (to clear all of them, repeat
this command 5 times).
As with keyboard operation, defining the tolerance does not automatically cause it to be
used, and it is necessary to apply it (as described in section 5.1) or by using a CT or SC
command to check the results against a tolerance, or set configuration T respectively.
Read Tolerance: RTn
RT read tolerance
The specified tolerance n is returned as a single line (up to 256 characters), terminated
with a CR character. ‘±’ characters are returned as ASCII character 124 (vertical bar)
since ± is not an ASCII character. If the tolerance number n is out of the allowed range
then tolerance 0 (the empty tolerance) is used, and error 66 (Out of range) is generated.
This means that the system will not lock up if an out of range value is used. In current
software the tolerance number may be 0-20, but this may be changed in future versions.
9.19 Memory Operations
All of the commands described above for reading sequence results only operate on the
current, or working, memory (0) and access to the other memories is provided via the
remote commands listed below. These memory operations correspond to the operations
available from the LA102 keyboard, described in section 3.5. Note that results from any
memory (1-5) can be read by first sending an MX command to swap the specified
memory with the working memory, reading the results, and then sending the same MX
command to swap the memories back to their original state. This technique is used by the
Lindos Support Software to read results from other memories without losing the current
results in memory 0.
151
9. Remote Control
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