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8
GPIB Command Compatibility List
Error Handling
Command Order
288
Most error commands and error texts for all instruments are new.
The HP 8153A timed out for every error. Errors are handled differently by
the 8163A/B and 8164A/B; instead of timing out for every error, special
values are returned for erroneous queries.
Table 17
on page -288 detail the new errors
The error queue is written to as before.
Table 16
Error Handling Changes
Expected Return Value
FLOAT(32/64)
(U)INT(16/32)
Block
Boolean Value
Enum
Table 17
Specific Errors
Command
FETCh:POWer? - without using a
preceding trigger
It is not yet known if there are any changes in the command order
behavior.
Table 16
Returned Value
FLT/DBL_MAX
(U)INT(16/32)_MAX
" "
0
Time out
Change
Returns the last valid value instead of timing out.
No error is generated.
8163A/B, 8164A/B & 8166A/B Mainframes Programming Guide
on page -288 and
Affects
8153
8153
8153
8153
8153
Affects
8153
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