A-157
Appendices
CJ2 CPU Unit Software User’s Manual
A-3 Auxiliary Area
App
A-3-2 Read/Write Area (Set by User)
Address
Name Function Settings
Status
after
mode
change
Status at
startup
Write timing/
Related flags,
settings
Words Bits
A620 A620.01 Communica-
tions Unit 0,
Port 1 Set-
tings Chang-
ing Flag
The corresponding flag will be ON when the settings for
that port are being changed.
The flag will be turned ON when STUP(237) is executed
and it will be turned OFF by an event issued from the
Serial Communications Unit after the settings have
been changed.
It is also possible for the user to indicate a change in
serial port settings by turning these flags ON.
ON: Changing
OFF: Not changing
Retained Cleared ---
A620.02 Communica-
tions Unit 0,
Port 2 Set-
tings Chang-
ing Flag
---
A620.03 Communica-
tions Unit 0,
Port 3 Set-
tings Chang-
ing Flag
---
A620.04 Communica-
tions Unit 0,
Port 4 Set-
tings Chang-
ing Flag
---
A621 to
A635
A621.00
to
A635.04
Communica-
tions Units 1
to 15, Ports 1
to 4 Settings
Changing
Flag
---
A650 A650.00
to
A650.07
Program
Replace-
ment Com-
pleted Flag
• Normal completion (i.e., when A650.14 is OFF)
01 hex: The program file (.OBJ) was replaced.
• Error (i.e., when A650.14 is ON)
00 hex: A fatal error occurred.
01 hex: A memory error occurred.
11 hex: Memory is write-protected.
12 hex: The program replacement password is
wrong.
21 hex: There is no Memory Card.
22 hex: The specified file does not exist.
23 hex: The size of the specified file exceeds the
capacity for the model (memory error).
31 hex: One of the following operations is being
executed.
• An operation related to file memory is
being executed.
• A user program is being written.
• The operating mode is being changed.
--- Retained Cleared ---
A650.14 Replace-
ment Error
Flag
ON when the Replacement Start Bit (A650.15) is turned
ON to replace the program, but there is an error. If the
Replacement Start Bit is turned ON again, the Replace-
ment Error Flag will be turned OFF.
ON: Replacement
error
OFF: No replace-
ment error, or the
Replacement Start
Bit (A65015) is ON.
Retained Cleared ---
A650.15 Replace-
ment Start
Bit
Program replacement starts when the Replacement
Start Bit is turned ON if the Program Password (A651) is
valid (A5A5 hex). Do not turn OFF the Replacement
Start Bit during program replacement.
When the power is turned ON or program replacement
is completed, the Replacement Start Bit will be turned
OFF, regardless of whether replacement was completed
normally or in error.
It is possible to confirm if program replacement is being
executed by reading the Replacement Start Bit using
the CX-Programmer, PT, or host computer.
ON: Program
replaced
OFF: Replace-
ment completed, or
after power is
turned ON
Retained Cleared ---
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