4) CALL HOST (CH) , <
< ON >
< OFF >
This command may be executed even while the 9400A is in LOCAL. When
the CALL HOST mode is set, the 9400A (only while it is in LOCAL)
displays -the message "Call Host" next to the soft key #7 of the
Main Menu. Whenever this soft key is pressed it will generate a
service request (SRO), provided that the masks of status byte 3 and
status byte 1 are correctly set (see Section 7.6.8). The purpose
this command is to allow the operator in an ATE setup (Automatic
Test Engineering) to call the host computer even while the 9400A is
in LOCAL mode, i.e. while the operator is permitted to change the
9400A front panel settings.
5) IDENTIFY (ID)
Request for identification message. "?" may be omitted.
The 9400A will send the message "LECROY 9400A - V xxxxxx", where
"xxxxxx" is the software version number.
6) WAIT
When the 9400A is acquiring a signal, the WAIT command stops any
command interpretation until the oscilloscope has been triggered.
7.6.7 Communication Format Command
i) COMM HEADER (CHDR) , < OFF >
< SHORT (SHO)
< LONG (LG)
Defines the header format in the 9400A character strings in response
to queries. Options are no header, short or long formats. The
default is SHORT. When the header is OFF, the suffixes of the
dimensioned parameters are also suppressed.
2) COMM TRAILER (CTRL) , < CRLF >
< CR >
< LF >
< OFF >
Defines the trailer format in the 9400A character strings in
response to queries. OFF is only possible in RS-232-C control. The
default is CRLF.
Note:
In remote control through GPIB, the last character is sent with the
E0I line set.
Remote Operations
7-31
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