Teledyne ADFM Analog Output Module, Техническое руководство, Страница: 118 / 156

Appendix C
RB - Blank Check Megabyte #
Purpose: Verifies recorder memory is fully erased (blank).
Format: RB nnn
Range: nnn = 000 to 999 (0 = check all recorder memory)
Description: RB lets you check the status of recorder memory. RB tells
you whether the selected megabyte of memory is BLANK (no
data stored) or USED (data stored).
Example 1: RB0 checks the entire recorder:
>RB 0
[BEGIN BLANK CHECK]
Checking: 40 MB (- = Blank, # = Data)
MB #: 1 2 3 4 5 6 7 8 9 10
0 +: - - - - - - - - - -
10 +: - - - - - - # - - -
20 +: - - - - - - - - - -
30 +: - - - - - # - - - -
[END BLANK CHECK]
In the above example, megabytes #17 and #36 contain data.
On 40-MB UV EPROM recorders, each board contains 2 MB,
so board 9 (17 MB / 2 MB = 8.5 = 9 rounded up) located in
slot J8 and board 18 (36 MB / 2 MB = 18) located in slot J16
both need further erasure. NOTE: If there are boards missing
from the UV EPROM recorder, then the order in which mem-
ory is checked is sequential - slot J0 to slot J19).
In PCMCIA recorders, RB0 shows the first x MB used, where
x = MB used per RS-command. Remaining MB fields are
blank.
Example 2: Different RB nnn values display the results for the selected
megabyte.
>RB5
Megabyte #5: Blank
>RB 34
Megabyte #36: Used
Blank checking 1 Mb of memory can take up to 30 seconds,
so there may be a delay before blank-check results are given.
If the ADFM is in binary mode (CFxx1xx), RB returns a mes-
sage consisting of four binary bytes, where:
Byte 2 = 06h or 15h; blank or used, respectively;
Byte 3 = [CSUMLO]; LSB of 16-bit checksum of bytes 1-2;
Byte 4 = [CSUMHI]; MSB of 16-bit checksum of bytes 1-2.
page C-38 MGD Technologies, Inc.