On-Line Removal Bits; Power-Off Counter - Omron SYSMAC C2000H Operation Manual

AR Area
Name
File Memory Unit Error Reset Bit
FM Data Transfer Flag
FM Write/Read Flag
FM Blocks Different Error Flag
FM write-protected Error Flag
Unsuccessful FM Write Flag
FM Checksum Error Flag
File Memory Unit Low Battery Flag
Write-protect Bits
Block Counters
3-5-6

On-line Removal Bits

3-5-7

Power-off Counter

Bit
AR 1900 Turned ON from program to reset AR 1903 through AR 1906.
AR 1901 ON while FM data is being transferred.
AR 1902 ON during transfers to FM; OFF during transfers from FM.
AR 1903 Turns ON if attempt is made to read different types of FM block.
AR 1904 Turns ON if attempt is made to write to a write-protected block.
AR 1905 Turns ON if a write operation to FM ends unsuccessfully.
AR 1906 Turns ON if a checksum error occurs when reading from FM.
AR 1907 Turns ON if the File Memory Unit battery voltage drops.
FM data can be write-protected in units of 250 blocks. To protect any part of
FM from being overwritten, turn ON the Write-protect bits of the blocks to be
protected. These are software protects. There are also switch settings on the
File Memory Unit that can be set to achieve the same purpose.
Bit
AR 1908
AR 1909
AR 1910
AR 1911
AR 1912
AR 1913
AR 1914
AR 1915
The FM Blocks Counter (AR 20) indicates the number of the block that is cur-
rently being transferred. The Remaining FM Blocks Counter (AR 21) indi-
cates the number of blocks remaining to be transferred. Both of these count-
ers provide data in 4-digit BCD and are refreshed each time transfer of a
block is completed.
15 to 12
3 2
10 10
AR 22 indicates when a Unit is being removed on-line and what words are
allocated to the Unit. AR 22 is refreshed every cycle while a Unit is being re-
moved on-line.
The On-line Removal Flag, AR 2215 turns ON when an on-line removal op-
eration is in progress. The On-line Removal First Word Indicator, AR 2200
through AR 2211, indicates the first word allocated to the Unit that is being
removed. This value is in 3-digit BCD.
The Number of Words Indicator, AR 2212 through AR 2214, indicates in bi-
nary the number of words allocated to the Unit that is being removed.
AR 23 provides in 4-digit BCD the number of times that the PC power has
been turned off. This counter can be reset as necessary using the PV
Function
Blocks
0 to 249
250 to 499
500 to 749
750 to 999
1000 to 1249
1250 to 1499
1500 to 1749
1750 to 1999
Bits
11 to 08 07 to 04
1
10
Section 3-5
03 to 00
0
10
35