mensor PCS 400 - Page 54

Vent
Long format (11 bytes):
1234 567891011
V$00 00000 0 X
Bytes 3–10 are ignored.
Short format (3 bytes):
123
V$X
The long and short formats vent the PCS both
internally and externally in the specified pres-
sure units.
Mini format (2 bytes):
12
VX
This command vents the PCS both internally and
externally in the current pressure units.
Standby
Long format (11 bytes):
1234 567891011
S$00 00000 0 X
Bytes 3–10 are ignored.
Short format (3 bytes):
123
S$X
Mini format (2 bytes):
12
SX
These commands place the PCS into the
STANDBY mode. The long and short formats
will change the pressure units when exiting an-
other mode such as MEASURE, CONTROL, or
VENT.
Change Units
Short format (3 bytes):
123
U$ X
This command changes the pressure units to
those specified in byte 2 of the command. See
‘Command Reference’ on the previous page for
allowed pressure units).
NOTE: If the units specified are not sup-
ported by the PCS 200 emulation mode an
error is generated and the instrument
will stay in the current mode of operation.
Changing Output Format
Unless otherwise specified the output format re-
mains in effect until changed.
NOTE: The PCS 400 will respond in the
PCS 200 output format as long as PCS 200
commands are sent. Once a PCS 400 com-
mand is sent, the output format will de-
fault to the output specified by outform 1.
Return Standard Reading
Long format (11 bytes):
1234 567891011
F000 00000 0 X
Bytes 2–9 are ignored.
Short format (3 bytes):
123
R0 X
These commands change the PCS output format
to the PCS 200 standard format.
Returns a 20 byte string:
*$################<CR><LF>
Where:
Byte 1 is the mode of operation.
This byte also determines which portions
of the remaining string are valid. All values
are set by previous conditions. In the
MEASURE and VENT modes all bytes ex-
cept 11–17 are valid. Bytes 11–17 will rep-
resent the last control pressure. In any of
the CONTROL modes, the entire string is
valid.
Byte 2 is the current pressure units.
PCS 400 REMOTE OPERATION
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