BNC 6040 - Manual (Page 35)

35
OPERATING INFORMATION
The transfer from mainframe memory into hardware of a new parameter can be suppressed
by following the value with a semicolon. This can be used for loading an entire front panel state into
mainframe memory and saving it in module memory, without disrupting the current hardware settings.
As an example, the string
TR IN 1E3 sets the rep rate generator to 1.000 kHz, whereas the string TR IN
1E3; does not affect the current setting of the repetition rate.
Initial Bus Parameter Selection
The {GPIB/RS-232} menu key has a number of items that affect the GPIB and RS-232 operation.
The Remote Enable/Disable setting determines whether full remote control is allowed. To allow remote
control, select Remote Enable. To prevent remote control, select Remote Disable. In both cases, the
instrument can be queried for parameter settings and the Mode setting.
Specific to the RS-232 are the Baud Rate and the Full/Half Duplex setting. These can be set according
to the user's needs. Note that Cntrl-Z (ASCII 26) must be received by the 6040 to enable RS-232
operation. Cntrl-C (ASCII 3) disables RS-232 operation.
For GPIB operation, the IEEE-488 Address (listen/talk) should be set to a unique address so that no
bus conflicts arise.
Command Set
The commands are grouped into four sets: status, panel control, display, and supplemental control
commands. The panel control commands have counterparts in the keypad commands used during front
panel programming. The other commands are unique to remote operation.
Status Commands
The status commands are used to query the status of command transactions, and the state of the
mainframe and plug-in module.