System Menu 67
7.7 DISPLAY
The instrument features an internal timer that monitors the duration of the enabled (ON) input.
ON Enables the timer.
The timer will replace the input measurement shown on the display below the
voltage measurement.
Figure 7.1 Timer Disabled
OFF Disables the timer.
7.8 RS-232
Congures the RS 232 interface settings.
The following settings are supported:
• 4800_8N 1 : baud rate 4800, data bit 8, none parity, stop bit 1
• 9600_8N 1 : baud rate 9600, data bit 8, none parity, stop bit 1
• 19200_8N 1 : baud rate 19200, data bit 8, none parity, stop bit 1
• 38400_8N 1 : baud rate 38400, data bit 8, none parity, stop bit 1
7.9 PROTOCOL
Congures the protocol used to remotely control the instrument.
FRAME The DC Load is programmed using packets of bytes. A packet always contains 26 bytes,
either going to or coming from the instrument. The basic programming rule is: You send a
26 byte packet to the instrument. You then read a 26 byte packet back from the DC Load
to either get the status of your submitted packet, or get the data you requested.
SCPI SCPI is an ASCII language that consists of conguration and query commands that are specic
to the instrument and a set of IEEE 488.2 operations and commands that are common to
all SCPI-based instruments. SCPI commands have long and short forms, where the long
form is very descriptive, and the short form is an abbreviation.