
42
IN
Initialize HPB Microprocessor
This command
IN
itializes the HPB microprocessor. When this command is sent with the RESET option, it performs
the same start-up function as removing and re-applying power to the HPB (exceptions to this are described in the
MO
command).
Action:
*dd
IN
This stops a continuous read operation but does not perform a power-on reset.
All RAM stored parameters are retained.
Action:
*dd
IN=R
ESET
This stops any current operation and then performs a power-on reset. If the command has a
group or global address (90-99), the message is re-transmitted before the power-on reset is
activated. All RAM parameters are replaced with EEPROM stored parameters. See
MO
command for reset options.
M= Maximum Customized Full Scale
This command identifies the
M
aximum full scale pressure, in psi units, that can be user customized
(see
F=
command). This value is fixed at the factory and corresponds to the full scale reference value for accuracy
and error determination. If the response has an ! character instead of =, there was an EEPROM parity error.
Inquiry:
*dd
M=
Muti-drop Configuration only
This command is used to select the HPB alternate message header set of non-printing characters. This can be used
when there is a conflict between the standard HPB message headers and the message characters used by some other
components that share the bus.
To change from standard to alternate headers:
Action:
*dd
WE
EEPROM Store: (ctrl \) dd
WE
*dd
M=ALT
(ctrl \) dd
SP=ALL
To change from alternate to standard headers:
Action:
(ctrl \) dd
WE
EEPROM Store: *dd
WE
(ctrl \) ddM
M=ALT
*dd
SP=ALL
Standard Header
Alternate Header ASCII Name
(1)
*
becomes
ctrl \
FS
$
becomes
ctrl ]
GS
~
becomes
ctrl ^
RS
#
becomes
ctrl _
US
{
becomes
ctrl Q
DC1
}
becomes
ctrl R
DC2
!
becomes
ctrl S
DC3
@
becomes
ctrl T
DC4
Note
: For example, the designator (ctrl \) indicates that the control key, ctrl, is held down while the backslash key,
\, is typed. (1) See Table 9 for ASCII values.