6-C10
Appendix C to Section 6: 9100 System Operation — IEEE 488.2 Common Commands and Queries
Final Width = 215mm
6.C.11
Protected User Data — Recall of User Data
This common command conforms to the IEEE 488.2 standard requirements.
∗
PUD? recalls previously entered user data. Refer to program command
∗
PUD.
Response Syntax:
where:
digit
= one of the ASCII-coded numerals previously determined from the length of the user message string,
user message
= the saved user message.
Execution Errors:
None.
Power On and Reset Conditions
Data area remains unchanged.
Response Decode:
The previously-saved message is recalled.
If no message is available, the value of the two digits is 00. The
data area contains up to 63 bytes of data.
A single query sent as a terminated program message will elicit
a single response terminated by:
nl = newline with EOI
If multiple queries are sent as a string of program message units
(separated by semi-colons with the string followed by a
permitted terminator), then the responses will be sent as a
similar string whose sequence corresponds to the sequence of
the program queries. The final response in the string will be
followed by the terminator:
nl = newline with EOI
PUD?
*
#
2
digit
user message
digit
