5522A
Operators Manual
5-28
where the Calibrator sources 1 V ac at 60 Hz, and then goes into operate, or they could be
combined into a compound command,
OUT 1 V, 60 HZ ; OPER
using a semi-colon as a separator. Care must be taken when a compound command
includes any of the coupled commands. (See “Coupled Commands.”)
Coupled Commands
A coupled command refers to two or more commands that appear in a compound
command (see “Compound Commands”) that perform actions that could interfere with
each other causing a fault. Commands in a compound command are separated by using
the ; character. Compound commands using only coupled commands are not order-
dependent.
In Chapter 6, the command shows a checkbox for coupled commands.
The coupled commands, excluding scope commands, are:
CUR_POST DBMZ DC_OFFSET HARMONIC OUT WAVE
An example of the coupled command interference is the command
*RST; OUT 100V, 1kHZ; WAVE SINE
Followed by the commands
WAVE TRI
OUT 10V, 1kHZ
The WAVE TRI causes an error. At 100 V, only sine waves are allowed. Both WAVE and
OUT are coupled commands. So, the compound command
WAVE TRI; OUT 10V, 1kHZ
executes successfully. The WAVE and OUT are programmed together and at 10 V, triangle
waves are allowed.
Overlapped Commands
Commands that begin execution but require slightly more time to complete are called
overlapped commands, because they can be overlapped by the next command before they
have completed execution.
In Chapter 6, the command shows a checkbox for overlapped commands.
The overlapped commands, excluding scope commands, are:
CUR_POST MULT STBY
DBM OLDREF SYNCOUT
DC_OFFSET OPER TC_OFFSET
DPF OUT TC_OTCD
DUTY PHASE TC_REF
EARTH PRES_UNIT TC_TYPE
EXTGUARD RANGELCK TSENS_TYPE
HARMONIC REFCLOCK WAVE
INCR REFPHASE ZCOMP
LCOMP *RST
LOWS RTD_TYPE
You can use the command *WAI to wait until the overlapped command has completed
execution before executing the next command. For example,
OUT 1 V, 1 A, 60 HZ ; *WAI
To Next Page
Loading...
