The 9400A sets the ENVIRONMENT ERROR:
- if command is CTRL OFF, while controlling via GPIB.
3) COMM HELP (CHLP)
, < OFF >
< REM PORT (RPO)
<
PLOT PORT (PeO)
Allows a HELP feature for the setup of remote control programs to be
turned on. When the HELP feature has been turned on, the 9400A
transmits character strings reflecting the message exchange between
the host computer and the oscilloscope to the REMOTE or to the
PLOTTER RS-232-C ports. These HELP messages can be viewed on a
normal display terminal.
4) COMM FORMAT (CFMT),A,
<BYTE>
<WORD>
Or
COMM FORMAT (CFMT),L, <BYTE>,<HEX>
<WORD>,<UNSIGNED_FIXED(UFIX)>
or
COMM_FORMAT(CFMT),L,
<BYTE>,<UNSIGNED_SHORT(USHO)>,<COMMA>
<WORD>,
" " "
<CR>
<LF>
<CRLF>
Selects
a block transfer format, as described in Section 7.5. In
RS-232-C remote control, only format L is available.
BYTE is for 8-bit data.
WORD is for 16-bit data. This format is normally used for 16-bit
data being read from Memory C, Memory D, Function E or Function F.
Raw data in Channel 1 and Channel 2 are always 8-bit data. It is
possible to read raw or processed data as 16-bit words. Raw data
have the measured 8-bit value in the most significant byte
(transmitted first), and zero in the least significant byte
(transmitted after).
HEX results in 2 hexadecimal digits for each 8-bit value and in 4
hexadecimal digits for 16-bit value.
UNSIGNED FIXED uses 3 digits for BYTE data and 5 digits for WORD
data.
UNSIGNED SHORT uses only as many digits as required but separates
data values with a sign. The last parameter selects the separator
between numbers.
The default is <COMMA>.
7-32
Remote Operations
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