Appendices
A-132
CJ2 CPU Unit Software User’s Manual
A344 A344.00
to
A344.07
EM File Memory
Starting Bank
Contains the starting bank number of EM trace memory or EM file
memory. All EM banks from this starting bank to the last bank in
the EM Area are formatted for use as file memory or trace mem-
ory. If EM Area banks are not formatted to file memory or trace
memory, this A344 will be FFFF hex.
To convert part of the EM Area to file memory or trace memory,
select PLC - Memory Allocation - EM Memory Settings from
the CX-Programmer, and then select File Memory or Trace Mem-
ory.
Retained Retained PLC Setup (EM File
Setting Enabled
parameter and EM
Start File No.
parameter)
A344.14 EM Trace Mem-
ory Flag
When A344 is not FFFF hex and this flag in ON, the banks of the
EM Area from the bank given in A344.00 to A344.07 to the end of
the EM Area are formatted to trace memory.
Retained Retained
A344.15 EM File Memory
Flag
When A344 is not FFFF hex and this flag in ON, the banks of the
EM Area from the bank given in A344.00 to A344.07 to the end of
the EM Area are formatted to file memory.
Retained Retained
A345 A345.00 FB Program
Source Informa-
tion Flag
Turns ON when there is FB program source information in the
source/comment memory.
ON: Information present, OFF: Information not present
Retained Internal
status
updated
When transferred
from the CX-Pro-
grammer
A345.01 Symbol Table
Information Flag
Turns ON when there is symbol table information in the
source/comment memory.
ON: Information present, OFF: Information not present
Retained Internal
status
updated
A345.02 Comment Infor-
mation Flag
Turns ON when there is comment information in the source/com-
ment memory.
ON: Information present, OFF: Information not present
Retained Internal
status
updated
A345.03 Program Index
Information Flag
Turns ON when there is program index information in the
source/comment memory.
ON: Information present, OFF: Information not present
Retained Internal
status
updated
A345.05 SFC Program
Source Informa-
tion Flag
Turns ON when there is SFC program source information in the
source/comment memory.
ON: Information present, OFF: Information not present
Retained Internal
status
updated
A345.07 Network Sym-
bols (Tags) Infor-
mation Flag
Turns ON when there is network symbols (tags) information in the
tag memory.
ON: Information present, OFF: Information not present
Retained Internal
status
updated
A346
and
A347
--- Number of
Remaining
Words to Trans-
fer
These words contain the 8-digit hexadecimal number of words
remaining to be transferred by FREAD(700) or FWRIT(701).
When one of these instructions is executed, the number of words
to be transferred is written to A346 and A347.
While the data is being transferred, the value in these words is
decremented.
A346 contains the rightmost 4-digits and A347 contains the left-
most 4-digits.
Check the content of these words to determine whether or not the
planned number of words have been transferred successfully.
Retained Cleared Written as FREAD
or FWRIT is being
executed.
Decremented as
data is actually
transferred.
A351
to
A354
--- Calendar/Clock
Area
These words contain the CPU Unit's internal clock data in BCD.
The clock can be set from the CX-Programmer, with the
DATE(735) instruction, or with a FINS command (CLOCK WRITE,
0702).
A351.00 to A351.07: Seconds (00 to 59) (BCD)
A351.08 to A351.15: Minutes (00 to 59) (BCD)
A352.00 to A352.07: Hours (00 to 23) (BCD)
A352.08 to A352.15: Day of the month (01 to 31) (BCD)
A353.00 to A353.07: Month (01 to 12) (BCD)
A353.08 to A353.15: Year (00 to 99) (BCD)
A354.00 to A354.07: Day of the week (00 to 06) (BCD)
00: Sunday, 01: Monday, 02: Tuesday,
03: Wednesday, 04: Thursday,
05: Friday, 06: Saturday
Retained Retained Written every cycle
Address
Name Function
Status
after mode
change
Status at
startup
Write timing/
Related flags, set-
tings
Words Bits
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