REMOTE OPERATION
ANSI/IEEE-488.2 Definitions
10_15 LDC-3900 Series 43
CHAPTER 3
page 43. The syntax diagram for a <compound query program header> is shown
in Figure 3.6 on page 43.
Figure 3.5 <compound command program header> Syntax Diagram
Figure 3.6 <compound query program header> Syntax Diagram
A <program mnemonic> is a command or command path identifier. For example,
the <PROGRAM MESSAGE> "TEC:COND?" consists of the command "COND?"
and the path identifier "TEC." All of the legal <compound command program
headers> may be traced by starting from the root node of the command structure
and moving down by levels to paths, and finally to the command.
A <PROGRAM MESSAGE TERMINATOR> causes the next command search to
begin at the root node. A leading colon (:) on a <PROGRAM MESSAGE UNIT>
will cause the LDC-3900 to begin searching for the command at the root node.
Otherwise (after a semicolon), the LDC-3900 will first search the most recently
used node for the command. It will continue to search the command tree until it
finds a legal command path, by searching each previously used node up to the
root. If no legal path is found, the LDC-3900 will generate an error message. For
more information on creating and using LDC-3900 commands, see Advanced
Programming on page 61.
: :
<program
mnemonic>
<program
mnemonic>
mnemonic>
<program
:
?
mnemonic>
<program
:
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