12 PRODIGIT
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4."TRIG"：The command will not be excuted immediately until the GPIB TRIG command is sent by
computer, the load level or load status are stored in the data buffer before the GPIB TRIG
command program line is excuted.
5.Terminator ： You have to send the program line terminator charactor after send the GPIB
command, the available command terminator characters which can be accepted in 3301A
mainframe is listed in table 4-2.
LF
LF WITH EOI
CR，LF
CR，LF WITH EOI
Table 4-2 GPIB command terminator
A terminator informs GPIB that it has reached the end of statement. Normally, this is sent
automatically by your GPIB programming statements. In this manual, the terminator is
assumed at the end of each example line of code. If it needs to be indicated, it is shown
by symbol (nl); which stand for " new line "and represents ASCII code byte the OA
Hexadecimal or 10 decimal.
6.Semicolon ";"：The semicolon " ; " is a back-up command, it instructs the parser to return
to the previous colon, the semicolon allows you to combine command statement on one line to
create command message.
7.GTL ： The REM LED annuciator of each load module will turn ON when the 3320 series
Electronic load module is in remote operation mode. The GTL (GO TO LOCAL) command returns
the Electronic load module to manual or front panel operation, the LED annuciator will turn
OFF as well in the manual operation mode. The ACSII code for GTL command is 01 Hexadecimal.
Summary of Contents for 3301A
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