Xantrex Technology XMP 2600 manual Programming messages formats, Listening Formats

Interfacing the XMP 2600 Programming messages formats

Programming messages formats

Listening Formats

Programming messages received by the XMP 2600 are comprised of the following elements:

Program Message	a programming command, query or data sent to the
	XMP 2600 from the Controller. A Program Message
	may have zero or more of the following:

Program Message Unit .. the actual command or query (including data) sent to the XMP 2600 by the Controller. A Program Message Unit is either a Command Message Unit or a Query Message Unit. The Program Message Unit is made out of the following elements:

Command Program Header or Query Program Header

............................. the Program Header represents the operation to be

performed by the XMP 2600. A Query Program Header is always ended with a “?”. Headers can be in Lower or Upper Case letters.

Program Header Separator		separates the	Program	Header
	from the Program Data elements. It is the ASCII
	character <white space>.
Program Data	zero or more Program Data elements separated by a
	Program Data Separator may be included in the
	Message Unit (as required by the specific Program
	Header). A Program Data element may be one of the
	following:
<ch>	Channel Number is a decimal number in the range 1
	to 16.
<value>	a Decimal Value expressed either in implicit or
	explicit point format. In some cases a sign (“+” or “-”)
	may precede it.
<int>	a Decimal Integer Value.
<string>	a series of ASCII characters enclosed within a pair of
	a specific character.
Program Data Separator		separates Program Data elements. It is
	the ASCII character “,” and may have any number of
	<white space> characters surrounding it.
Program Message Unit Separator		separates Program	Message	Units
	contained within a single Program Message. The
	Separator is the ASCII character “;” and may have
	any number of <white space> characters surrounding
	it.
Program Message Terminator	terminates the Program Message. Together they form
	a complete transmission. The Terminator may be one
	of the following:
<LF> or <NL>	Line Feed or New Line (ASCII code 10).
<CR><LF>	Carriage Return & Line Feed (ASCII codes 13 & 10).
<EOI>	the GPIB single line EOI message. It may be
	combined with a <LF> ASCII code byte.

XMP 2600 Programming Manual rev. 1.1 3