Series 2600 System SourceMeters Reference Manual Communications Interfaces 11-7
Return to Section 11 topics 2600S-901-01 Rev. A / May 2006
General bus commands
General commands are those commands, such as DCL, that have the same
general meaning regardless of the instrument. Table 11-1 lists the general bus
commands.
Table 11-1
General bus commands
Command Effect on SourceMeter
REN
IFC
LLO
GTL
DCL
SDC
GET
SPE, SPD
Goes into remote when next addressed to listen.
Goes into talker and listener idle states.
LOCAL key locked out.
Cancel remote; restore SourceMeter front panel operation.
Returns all devices to known conditions.
Returns SourceMeter to known conditions.
Initiates a trigger.
Serial polls the SourceMeter.
REN (remote enable)
The remote enable command is sent to the SourceMeter by the controller to set
up the instrument for remote operation. Generally, the instrument should be
placed in the remote mode before you attempt to program it over the bus. Setting
REN true does not place the instrument in the remote state. You must address the
instrument to listen after setting REN true before it goes into remote.
IFC (interface clear)
The IFC command is sent by the controller to place the SourceMeter in the local,
talker, listener idle states. The unit responds to the IFC command by cancelling
front panel TALK or LSTN lights, if the instrument was previously placed in one of
these states.
Transfer of command messages to the instrument and transfer of response
messages from the instrument are not interrupted by IFC. If a response message
was suspended by IFC, transfer of the message will resume when the unit is
addressed to talk. If a command message transfer was suspended by IFC, the
rest of the message can be sent when the unit is addressed to listen.
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