DH Instruments PPC2+, Руководство пользователя

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PPC2+™ Operation and Maintenance Manual
©2001 DH Instruments, Inc.
Page 68
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+ as well
as mark the end of replies sent back to the host computer. The PPC2+ 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.
IEEE-488
The IEEE-488 port’s primary address can be set from 1 to 31 in this screen.
The factory default value is 10. Secondary addressing is not used or supported.
This address must not conflict with the address of any other devices on the same
IEEE-488 bus.
The receiving terminating character must be a line feed and EOI.
Carriage returns are ignored if received. The PPC2+ sends a line feed and
asserts the EOI line to terminate a reply. These settings are fixed to agree with
IEEE Std. 488. If you change the address, the IEEE interface will reset (PON)
and become idle.
Format
The PPC2+ has two different syntax formats available for the remote
program commands. The classic format is compatible with previous PPC
products and is the default format. The enhanced format follows the syntax,
format, and status reporting features of IEEE Std 488.2. The details of each are
covered in Section 4.3. Selecting a format resets the IEEE interface and puts it
into an idle state.
3.4.4.4 TIME
m
PURPOSE
To view and edit the PPC2+ internal time and date settings.
m
OPERATION
To access the time function press
[SPECIAL] and select <4Internal>,
<4Time>. The display is:
Select <1time> to edit the time. Edit hours, then minutes, then am/pm by
pressing ENTER at each entry. Seconds go to zero when minutes are entered.
Select <2date> to edit the date. The date must be specified in YYMMDD format.
>RO::-NK^OKXN^SWOK\O]O^^Y?XS^ON=^K^O]7Y_X^KSX=^KXNK\N>SWOSX
^RO PSXKV ^O]^ KXN SX]ZOM^SYX Z\YMO]] K^ ^RO PKM^Y\c 3P NO]S\ON _]O ^RO NK^O
P_XM^SYX^Y]O^cY_\VYMKV^SWOKXNNK^O
08:32:11 am 970724