2: General operation Series 2600B System SourceMeter® Instrument
2-108 2600BS-901-01 Rev. C / August 2016
LOCAL key
The EXIT (LOCAL) key cancels the remote state and restores local operation of the instrument.
Pressing the EXIT (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 EXIT (LOCAL) key is also inoperative. Note that
pressing the EXIT (LOCAL) key will also abort any commands or scripts that are being processed.
RS-232 interface operation
This topic contains information about configuring RS-232 communication parameters, sending or
receiving command messages, and requesting or retrieving data. To control the Series 2600B,
connect a controller or personal computer to the Series 2600B RS-232 interface. Alternatively, you
can use the Series 2600B to control another device over RS-232.
Setting RS-232 interface parameters
To set interface parameters from the front panel:
1. Press the MENU key, select RS232 and then press the ENTER key or the navigation wheel .
2. Select and enter the following interface parameters:
• BAUD: Set baud rate (see Baud rate (on page 2-109))
• BITS: Set number of bits (see Data bits and parity (on page 2-109))
• PARITY: Set parity
• FLOW-CTRL: Set Flow control and signal handshaking (on page 2-109
)
• ENABLE: Enable or disable the RS-232 interface
1. Press the EXIT (LOCAL) key twice to return to the normal display.
Remote RS-232 parameters
Commands to set RS-232 parameters are listed in the following table. See the
TSP command
reference (on page 7-1) for more information.
RS-232 interface commands
Command Description
Set baud rate (300, 600, 1200, 2400, 4800, 9600, 19200,
38400, 57600, 115200)
Set number of bits (7 or 8)
serial.flowcontrol = flow
serial.FLOW_NONE (no flow control)
(hardware flow control)
Set parity:
serial.PARITY_NONE (no parity)
serial.PARITY_EVEN (even parity)
(odd parity)
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