Lter - HP 54501A Programming Reference Manual

LTER
LTER (Limit Test Event Register)
query
The
LTER
query allows the Limit Test Event Register to be read. The
Limit Test Event Register
contains the
Limit Test Fail
bit.
This bit is set
when the limit
test is
active and
a
limit
test has failed.
After the Limit
Test
Event Register is
read, it
is
cleared.
A
Service Request
(SRQ)
can
only be generated when the bit transitions
from
0 to
1,
therefore
the
bit
must be
cleared each time you would like
a
new
Service Request to be generated.
Query
Syntax:
:LTER?
Returned Format:
[:LTER]
{l |
0}
<NL>
Example:
OUTPUT
707;":LTER?"
ENTER 707;Lmt$
PRINT
Lmt$
HP 54501A
Programming
Root Level Commands
6-11