11-10 Communications Interfaces Series 2600 System SourceMeters Reference Manual
2600S-901-01 Rev. A / May 2006 Return to Section 11 topics
LOCAL key
The LOCAL (EXIT) key cancels the remote state and restores local operation of
the instrument. Pressing the LOCAL key also turns off the REM indicator and
returns the display to normal if a user-defined message was displayed.
If the LLO (Local Lockout) command is in effect, the LOCAL key is also
inoperative. For safety reasons, the OUTPUT OFF key can be used to turn the
output off while in LLO. Note that pressing LOCAL or OUTPUT OFF will also abort
any commands or scripts that are being processed.
RS-232 interface operation
Setting RS-232 interface parameters
Front panel RS-232 parameters
To set interface parameters:
1. Press the MENU key.
2. Select COMMUNICATIONS, then press ENTER or the Rotary Knob.
3. Select INTERFACE_CFG, then press ENTER or the Rotary Knob.
4. Select RS-232, then press ENTER or the Rotary Knob. Set these interface
parameters as outlined in the following paragraphs:
• Baud rate
• Number of bits
•Parity
• Flow control
5. Press EXIT as needed to back out of the menu structure.
Remote RS-232 parameters
Commands to set RS-232 parameters are listed in Table 11-2. See Section 12 for
more information.
Note that changing the serial port settings take effect when the command is
processed. Any response messages generated after processing these commands
will be sent with the new settings. If command messages are being queued (sent
before these commands have executed), the new settings may take effect in the
middle of a subsequent command message, so care should be exercised when
setting these attributes from the remote interface.
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