<PMT>
<PMT> is a program message terminator. The following
three types of program terminators are available.
• NL (New line)
Same as LF (line feed). ASCII code “0AH.”
• ^END
The END message (EOI signal) as defined in
IEEE488.1. (The data byte that is sent with the END
message is the last data of the program message.)
• NL^END
NL with an END message attached. (NL is not
included in the program message.)
Program Message Unit Syntax
The program message unit syntax is shown below.
,
<Program header>
<Program data>
Space
<Program Header>
The program header indicates the command type. For
details, see page 13-3.
<Program Data>
Attach program data if there are conditions that are
required to execute a command. Separate the program
data from the header with a space (ASCII code 20H). If
there are multiple sets of program data, separate each
set with a comma.
For details, see page 13-5.
Example
Header
Data
:SOURce:FUNCtion VOLTage<PMT>
Response Messages
Data that is sent from the GS200 to the controller is
called a response message. The response message
syntax is shown below.
<RMT>
;
<Response message unit>
<Response Message Unit>
A response message consists of one or more
response message units; each response message unit
corresponds to one response.
Separate each response message unit with a
semicolon.
For details on the syntax of response message units,
see the next section.
Example
Unit
Unit
:SOURce:FUNCtion VOLTage;RANGe 100E-3<RMT>
<RMT>
RMT is a response message terminator. It is NL^END.
Response Message Unit Syntax
The response message unit syntax is shown below.
,
<Response data>
<Response Header>
A response header sometimes precedes the response
data. Separate the data from the header with a space.
For details, see page 13-5.
<Response Data>
Response data contains the content of the response. If
there are multiple sets of response data, separate each
set with a comma.
Example
50.0E-3<RMT>
1,256<RMT>
VOLT<RMT>
If there are multiple queries in a program message,
responses are returned in the same order that the
queries were received in. In most cases, a single query
returns a single response message unit, but there
are a few queries that return multiple units. The first
response message unit always corresponds to the first
query, but the n
th
response unit may not necessarily
correspond to the n
th
query. Therefore, if you want to
make sure that every response is retrieved, divide the
program messages into individual messages.
13.1 Program Format
13-2
IM GS210-01EN