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m
Used to read SRQ setting.
Used to initialize power supply to
power-on state; also resets the PON bit in
the serial poll register. The device clear in¬
terface message performs the same
function.
3-180-3-182
ERR?
**ERR XX
Used to determine type of programming
error detected by power supply, A remote
programming error will set the ERR bit in
the status register, which can be enabled by
UNMASK to request service. See Table 3-10
for descriptions of error codes.
3-183-3-185
TEST?
**TEST XX
Causes power supply to run self
tests and report any failures. Type of tests
run depends on whether power supply out¬
put is on or off.
3-186-3-192
ID?
**HP6038A or
**HP6038A, OPT 100
Causes power supply to report its model
number and any options that affect the
unit's output capability.
ROM?
**ROM xxxx
Causes power supply to report the date
code of HP-IB ROM.
{Bracketed commands are equivalent.
X = any digit (within range)
MV = millivolt
MA = milliamp
MS = millisecond
** Query causes power supply to clear output buffer, gather requested data, and store it in output buffer. Data will
be put on HP-IB when power supply is addressed to talk and ATN goes false. Only most recently requested
data is stored, and it is not saved after being put on HP-IB.
3-116
Implicit separation occurs when the received
characters change from upper or lowercase alpha (A...Z, a...z)
to numeric (+, - ,0.. .9). Spaces may also be used where im¬
plicit separation takes places. For example, both the following
commands are correct:
VSET5V
VSET5V
The question mark is implicitly separated from alpha characters,
for example:
VMAX?
VMAX ?
are both correct.
3-117
Terminators for Data Sent to Power Supply. Ter¬
minators mark the end of a command string, and they instruct
the power supply that the command it has just received should
be executed. The terminator characters are the line feed and
semicolon.
3-118
Line feed is sent by all HP controllers automatically
after wrt or OUTPUT statements unless deliberately
suppressed, so the user need not include a terminator when
only one command is sent per line. If the user wishes to send
more than one command per line the commands must be
separated by semicolons.
3-119
Any number of consecutive terminators is treated as
one. A terminator may be preceded or followed by any number
of spaces, for example:
VOUT 15V;IOUT 5A
VOUT 15V ; lOUT 5A
are both correct.
3-120
The carriage return character by itself is not sufficient
to terminate a command, but it will be accepted without error
in all cases where a terminator or separator is expected.
3-18
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