671
Auxiliary Area Allocations by Address Appendix D
A527 A527.00
to
A527.07
Online Edit-
ing Disable
Bit Validator
The Online Editing Disable Bit
(A527.09) is valid only when this byte
contains 5A.
To disable online editing from the
CX-Programmer, set this byte to 5A
and turn ON A527.09.
(Online editing refers to changing or
adding to the program while the PLC
is operating in MONITOR mode.)
5A:
A527.09
enabled
Other value:
A527.09 dis-
abled
Retained Cleared --- A527.09
A527.09 Online Edit-
ing Disable
Bit
Turn this bit ON to disable online
editing. The setting of this bit is valid
only when A527.00 to A527.07 have
been set to 5A.
ON: Disabled
OFF: Not dis-
abled
Retained Cleared --- A527.00
to
A527.07
A528 A528.00
to
A528.07
Serial Port 2
Error Flags
These flags indicate what kind of
error has occurred at the serial port
2; they are automatically turned OFF
when the serial port 2 is restarted.
(These flags are not valid in periph-
eral bus mode and only bit 5 is valid
in NT Link mode.)
PLC Link Polling Unit:
Bit 05: ON for timeout error.
PLC Link Polled Unit:
Bit 03: ON for framing error.
Bit 04: ON for overrun error.
Bit 05: ON for timeout error.
These bits can be cleared by the CX-
Programmer.
Bits 00 and 01:
Not used.
Bit 02: ON for
parity error.
Bit 03: ON for
framing error.
Bit 04: ON for
overrun error.
Bit 05: ON for
timeout error.
Bits 06 and 07:
Not used.
--- --- --- ---
A528.08
to
A528.15
Serial Port 1
Error Code
These flags indicate what kind of
error has occurred at the serial port
1; they are automatically turned OFF
when the serial port 1 is restarted.
(These flags are not valid in periph-
eral bus mode and only bit 5 is valid
in NT Link mode.)
PLC Link Polling Unit:
Bit 13: ON for timeout error.
PLC Link Polled Unit:
Bit 11: ON for framing error.
Bit 12: ON for overrun error.
Bit 13: ON for timeout error.
These bits can be cleared by the CX-
Programmer.
Bits 08 and 09:
Not used.
Bit 10: ON for
parity error.
Bit 11: ON for
framing error.
Bit 12: ON for
overrun error.
Bit 13: ON for
timeout error.
Bits 14 and 15:
Not used.
--- --- --- ---
A529 All FAL/FALS
Number for
System
Error Simu-
lation
Set a dummy FAL/FALS number to
use to simulate the system error
using FAL(006) or FALS(007).
When FAL(006) or FALS(007) is exe-
cuted and the number in A529 is the
same as the one specified in the
operand of the instruction, the sys-
tem error given in the operand of the
instruction will be generated instead
of a user-defined error.
0001 to 01FF
hex: FAL/FALS
numbers 1 to
511
0000 or 0200
to FFFF hex:
No FAL/FALS
number for sys-
tem error simu-
lation. (No error
will be gener-
ated.)
Retained Cleared --- ---
A531 A531.00 High-speed
Counter 0
Reset Bit
When the reset method is set to
Phase-Z signal + Software reset, the
corresponding high-speed counter's
PV will be reset if the phase-Z signal
is received while this bit is ON.
When the reset method is set to Soft-
ware reset, the corresponding high-
speed counter's PV will be reset in
the cycle when this bit turns ON.
--- Retained Cleared --- ---
A531.01 High-speed
Counter 1
Reset Bit
--- Retained Cleared --- ---
A531.02 High-speed
Counter 2
Reset Bit
--- Retained Cleared --- ---
A531.03 High-speed
Counter 3
Reset Bit
--- Retained Cleared --- ---
Addresses Name Function Settings Status
after
mode
change
Status at
startup
Write
timing
Related
Flags,
Settings
Word Bits
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