Operator`s manual

SECTION 4. EXTERNAL STORAGE PERIPHERALS
4-3
TABLE 4.2-1. *8 Mode Entries
Display
Key ID:DATA Description
*8 08:00 Enter *8 Mode, key A to
advance to first window.
A 01:XXXXX Start of Dump location,
initially the TPTR location, a
different location may be
keyed in if desired.
A 02:XXXXX End of Dump location,
initially the DSP location,
a different location may
be keyed in if desired.
A 03:00 Ready to Dump, to initiate
dump, key any number
then A. While dumping,
"08:" will be displayed in
the ID field and the
location number in the
Data field. The location
number will stop
incrementing when the
dump is complete.
If the TPTR is at the same location as the DSP,
then a block of 512 "dummy" values are
transferred. This provides a means of checking
the 21X/cassette connections and the cassette
operation. During data playback, the PC201
and C20 Cassette Interfaces recognize dummy
values and do not transmit them.
When on-line tape transfer is not enabled and
the *8 Mode is used to dump new data, the start
of dump pointer (TPTR) will remain where it was
when the dump was completed or aborted until
the next time the *8 Mode is entered. If the End
of Dump location (window 2) is changed while in
the *8 Mode, the TPTR will be set to its previous
value when the *8 Mode is exited. Changing the
program and compiling moves the TPTR to the
current DSP location.
When on-line, the 21X dumps data to tape in
blocks of 512 Final Storage locations. Residual
data is data which has accumulated since the
last full block. When picking up a data tape from
a field site, dump the residual data before
removing the tape.
To dump the residual data enter the *8 Mode,
advance directly to window 3 and initiate a
dump. Because data are written to tape in fixed
blocks of 512 locations, the TPTR may be in the
middle of an output array. Entering a location
for the TPTR, even the location originally
displayed, will result in the TPTR being moved to
the first output array start marker following the
location entered. Thus, the portion of the array
following the original TPTR location would not be
written to tape.
To use the *8 Mode to transfer all data from
Final Storage to tape, enter a start of dump
location number which is 1 greater than the end
of dump location, advance to ready to dump
(03:) and key any number and A. Data transfer
occurs immediately and is completed when the
display shows "08:" and the current DSP
location.
To dump a portion of the data in Final Storage,
key in the start and end locations before
initiating the dump. The locations can be
determined by viewing the contents of Final
Storage in the *7 Mode. By saving the current
location of the DSP and using it for the starting
location on the next visit to the site, only the
data stored between visits are transferred to
tape.
NOTE: A tape dump can be aborted by
keying #. However, since it cannot be
aborted in the middle of a 512 data point
block, up to 5 seconds may elapse before
the tape stops.
4.2.2 MANUAL STORAGE MODULE OR PRINTER
DUMP - *9 MODE
Using the *9 Mode, data in Final Storage can be
transmitted as ASCII or binary data out the
serial port by manually initiating a dump. If on-
line printing is enabled with Instruction 96 or the
*4 Mode, entering *9 will stop it. On-line printing
will be re-enabled if no keyboard entries are
made for 3.4 minutes. Return to the *0 Mode
when the dump is completed.