Fluke 5500A Operator's Manual page 220

5500A
Operator Manual
LOCAL
(Local command) Puts the 5500A 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:
Example:
Set the instrument into the local state, clearing the remote state and front panel lockout
(if enable).
LOCKOUT
(Lockout command) Puts the 5500A 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.
Parameter:
Example:
Set the instrument into the front panel lockout state. The front panels controls cannot be
used.
LOWS
(Low Potential Output Terminals command) Select whether or not the 5500A Calibrator
front panel NORMAL LO terminal and AUX LO terminal are internally tied together
(default) or are open. This feature is used for ac power, dc power, dual dc volts and dual
ac volts outputs. Once set, the 5500A Calibrator retains the LO setting until power off or
reset.
Parameter:
Example:
Tie the front panel NORMAL LO and AUX LO terminals together.
LOWS?
(Low Potential Output Terminals query) Return whether or not the 5500A Calibrator
front panel NORMAL LO terminal and AUX LO terminal are internally tied together
(default) or are open.
Response:
Example:
Return OPEN when the 5500A Calibrator front panel NORMAL LO and AUX LO
terminals are not tied together.
6-24
x x
IEEE-488 RS-232
(None)
LOCAL
x x
IEEE-488 RS-232
(None)
LOCKOUT
x x
IEEE-488 RS-232
(disconnect NORMAL LO and AUX LO terminals)
OPEN
(connect NORMAL LO and AUX LO terminals)
TIED
LOWS TIED
x x
IEEE-488 RS-232
(disconnected NORMAL LO and AUX LO terminals)
OPEN
(connected NORMAL LO and AUX LO terminals)
TIED
LOWS? returns OPEN
x x
Sequential Overlapped
x x
Sequential Overlapped
x x
Sequential Overlapped
x x
Sequential Overlapped
x
Coupled
x
Coupled
x
Coupled
x
Coupled