Integrated Microwave Technologies LLC. 25VST 사용자 설명서

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 User Manual

 

 
Revision 

 

 44 

 
The implementation of an RS-232

 

command set, or Remote Protocol, allows the use of customized 

interfaces to perform virtually all unit operations, including:   



  Configure Settings 



  Query Status 

 
The Remote Protocol consists of command and response messages, or packets. The internal CPU 
handles interpretation of the packets to set unit parameters, and provide responses back through the 
serial interface. 
 
In addition to IMT’s Nano Controller, alternate control interfaces may be developed, or available from 
third parties. Additionally, commands and responses may be entered and viewed manually using a 
command terminal.   
 
The Remote Protocol is available upon request from IMT. 

 
Refer to the Remote Protocol for information about the baud rate, number of data bits, stop bits, and 
flow control methods.  

 
This section provides a brief introduction to the serial interface command and response packet formats.  
The command packets use the following format: 
 

 
Where the fields are ASCII and are defined as follows: 

Literal 

<tt>  Address of target (0x01 – 0xFF) 
<ss>  Address of source (0x00 – 0xFF) 
<##>  Packet Length (Packet Length = Command Length + Data Length) 
<cc>  Command (0x00-0xFF) – Different values are used for each command. 
<dd>  Data (Hex Format) – Data values are encoded with a variety of meanings. 
<CS>  (1’s complement of <tt> to end of data) 
<CR>  Carriage Return 
<LF>  Line Feed 

 
After a command packet is received, the unit returns a response packet. Response packets have the 
same basic format as command packets, except that the source and destination are reversed, and the 
command field specifies the type of response being sent.