Remote Control 
  Copyright © Itech Electronic Co., Ltd.  5 
As shown below: 
APPL:SIN 455E3,1.15,0.0 
In this example, APPLy command assigns a sine wave with frequency of 455 
KHz, amplitude of 1.15 V and DC offset of 0.0 V. 
Semicolon (;) 
It is used to separate several commands in the same subsystem and can also 
minimize typing. For example, to send the following command string: 
TRIG:SOUR EXT; COUNT 10 
has the same effect as sending the following two commands: 
TRIG:SOUR EXT 
TRIG:COUNT 10 
Question mark (?) 
You can insert question marks into a command to query current values of most 
Parameter. For example, the following commands will trigger to set the count as 
10: 
TRIG:COUN 10 
Then, you may query count value by sending the following command: 
TRIG:COUN? 
You may also query the allowable minimum or maximum count as follows: 
TRIG:COUN?MIN 
TRIG:COUN?MAX 
Comma (,) 
If  a  command  requires  several  Parameter,  then  a  comma  must  be  used  to 
separate adjacent Parameter. 
Space 
You must use blank characters, [TAB] or [Space] to separate Parameter with 
key words of commands. 
Generic commands (*) 
Execute  functions  like  reset,  self  inspection  and  status  operation.  Generic 
commands  always  start  with  a  asterisk  (*)  and  occupy  3  character  sizes, 
including  one  or  more  Parameter.  Key  words  of  a  command  and  the  first 
parameter  are  separated  by  a  space.  Semicolon  (;)  can  separate  several 
commands as follows: 
*RST; *CLS; *ESE 32; *OPC?