PPC2 AF OPERATION AND MAINTENANCE MANUAL
© 1998 DH Instruments, Inc. Page 48
3.4.4.2 CAL
To calibrate the PPC2 AF Hi and Lo reference pressure transducers and barometer.
PRINCIPLE
See Sections 5.3 and 5.4.
OPERATION
See Sections 5.3 and 5.4.
3.4.4.3 REMOTE
PURPOSE
To configure the PPC2 AF communication ports including COM1 and COM2.
PRINCIPLE
The PPC2 AF has two RS-232 communications ports referred to as COM1 and
COM2. COM1 is for communicating with a host computer (refer to Section 4),
and COM2 is reserved for connecting an external device, e.g. a multimeter, RPM,
etc.. These ports can be set up through the PPC2 AF front panel.
OPERATION
To access the port configurations press 3Remote under 4Internal of the SPECIAL
menu. Select COM1 or COM2 to view and edit that port’s settings.
COM1 AND COM2
The COMx ports can be set for the specific settings required by the user. These
settings are baud, parity, length and stop bit. The available options are:
Baud: 300, 600, 1200, 2400, 4800, 9600
Parity: NONE, ODD or EVEN
Length: 7 or 8
Stop Bit: 1 or 2
The default is “2400, E, 7,1” for COM1 and COM2.
The user can also specify one or two termination characters as well as define
these characters. These are referred to as “Term1” and “Term2”. These define
the characters that mark the end of commands that are sent to the PPC2 AF as
well as mark the end of replies sent back to the host computer. The PPC2 AF
typically will use the “Term1” character to mark the end, and will ignore the
“Term2” character. These characters can be any decimal number from 1 to 255.
The default for these are “13” (carriage return) and “10” (line feed) and usually
should not be changed.
3.4.4.4 DATE
PURPOSE
To view and edit the PPC2 AF time and date.
OPERATION
To access the date function press 4Date
under 4Internal of the SPECIAL menu.
The display is:
Edit: 1time 2date
08:32:11 am 960724
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