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Operation
GPIB Operation
Release 3.1
35
Device
Trigger
Device Trigger will implement the most recently programmed values whether the
unit is in local or remote control. If the power supply is in local mode, the new values
will be implemented when it is switched from local to remote control. Device
Trigger is typically used to synchronize the operation of a number of addressed
devices.
Example:
Use HOLD Command to set values to be executed when triggered. See
“Command Reference” on page 43.
Then use:.
Parallel Poll
Parallel Poll allows the computer controller to determine quickly which of a number
of instruments on the bus requested service. The parallel poll response corresponds
to bit 7 of the serial poll status byte. Parallel Poll does not reset the service request.
The power supply must be configured remotely to respond to a parallel poll with
either a "1" or "0" on one of the DIO lines if the unit is requesting service.
Example:
Local
Lockout
Send Local Lockout from the computer controller to override the front panel
LOCAL switch and ensure that the supply operates in remote mode. See “Setting
Local Lockout” on page 27 for more information
.
Example:
Note
: To disable Local Lockout, use ibsre0 in place of ibsre1 in the example.
ibfind "devname"
Address the unit (devname or device name as
configured originally with ibconf)
ibtrg
Command directed to entire bus, or
ibwrt"trg"
Command directed to a specific device.
ibrpp
Conduct a parallel poll.
ibfind GPIB0
Address the computer controller
ibsic
Put the controller in charge by sending an
Interface Clear
ibsre1
Asserts Remote Enable
ibcmd "?_@\x11"
Send commands (UNL, UNT, MTA0, LLO) in
ASCII.
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