User`s manual

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Chapter 5 Remote Interface Reference
3488 Mode Commands
4
5
EHALT <0 | 1>
Enables or disables the stop-on-error mode. When enabled (EHALT 1), an
error will lockup the GPIB interface (no GPIB communication). Default
condition is disabled (EHALT 0), which allows GPIB communication after
an error is discovered.
Note Once the GPIB is locked up, you must reset the GPIB interface. The
3499A/B/C can be reset by either pressing the front panel local key or
executing the GPIB CLEAR command.
OUTPUT 709; “EHALT 1”
! Enable the stop-on-error mode.
ERROR
Reads the 3499A/B/C’s error register. The returned decimal value is the
sum of the values of the possible error conditions, as shown below:
OUTPUT 709; “ERROR”
OUTPUT 709; A
DISP A
ID?
Queries the 3499A/B/C’s identity and returns a string in the form
“3499A”.
10 OUTPUT 709; “ID?”
20 ENTER 709; A$
30 DISP A$
! Display the returned string.
Bit Weighted Value Error Condition
0 1 Syntax Error
12
Execution Error
possible meanings include:
a. Parameter out of range
b. Card type mismatch
c. Attempt to access a nonexistent stored state
or scan list
2 4 Hardware Trigger too fast
3 8 Logical Failure
4 16 Power Supply Failure