Fluke 5520A - 6-118. AC Voltage Frequency Verification

Remote Commands
Commands
6
6-25
LIMIT
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
(Limit command) Sets the maximum permissible output magnitude, negative and
positive, for voltage and current, which is saved in the Calibrator non-volatile memory.
(While saving configuration data in the non-volatile memory, a period of about 2
seconds, the Calibrator does not respond to remote commands.) Both negative and
positive values must be entered. Once set, the Calibrator retains the limit settings until
either another limit is entered, or the FORMAT SETUP command resets the limits (and
all other defaults) to the factory settings (±1000 V, ±11 A). See the FORMAT command.
The magnitude of the limit has the following effect on different waveforms:
dc magnitude of limit
ac (sine wave) magnitude of limit (rms)
ac (non-sine wave) magnitude of limit x 3 (peak-to-peak)
ac (with dc offset) magnitude of limit x 2.4 (absolute peak) (volts only)
Parameters: <positive value>,<negative value>
Example: LIMIT 100V, −100V
Limit the voltage output to ±100 V dc, 100 V ac rms, 300 V peak-to-peak, 240 V peak.
Example: LIMIT 1A, −1A
Limit the current output to ±1 A dc, 1 A ac rms, 3 A peak-to-peak.
LIMIT?
Sequential Overlapped
Coupled
IEEE-488 RS-232
x x xx
x
(Limit query) Returns the programmed output magnitude limits for voltage and current.
Response: <positive value voltage>,<negative value voltage>,
<positive value current>,<negative value current>
Example: LIMIT?
returns 1020.0000,−1020.0000, 20.5000, −20.5000
Returns the present value of the voltage and current limits (reset values shown).
LOCAL
Overlapped CoupledIEEE-488 RS-232 Sequential
x x xx x
(Local command) Puts the Calibrator into the local state, clearing the remote state (see
the REMOTE command) and front panel lockout (see the LOCKOUT command). This
command duplicates the IEEE-488 GTL (Go To Local) message.
Parameter: (None)
Example: LOCAL
Set the instrument into the local state, clearing the remote state and front panel lockout
(if enable).
LOCKOUT
Overlapped CoupledIEEE-488 RS-232 Sequential
x x xx x
(Lockout command) Puts the Calibrator into the lockout state when in remote control
(see the REMOTE command). This means no local operation at the front panel is allowed
during remote control. To clear the lockout condition, use the LOCAL command. This
command duplicates the IEEE-488 LLO (Local Lockout) message.