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Address
Name
Words
Bits
A528
00
Built-in RS-232C Port
to
Error Flags (CP1E
07
N/NA-type CPU Unit
only)
08
Serial Option Port
to
Error Flags (CP1E
15
N30/40/60 or NA20
CPU Unit only)
A529
FAL/FALS Number for
System Error Simula-
tion
A531
00
High-speed Counter 0
Reset Bit
01
High-speed Counter 1
Reset Bit
02
High-speed Counter 2
Reset Bit
03
High-speed Counter 3
Reset Bit
04
High-speed Counter 4
Reset Bit
05
High-speed Counter 5
Reset Bit
(Not supported by
E10 CPU Unit)
CP1E CPU Unit Software User's Manual(W480)
Function
These flags indicate what kind of error
has occurred at the built-in RS-232C
port.
• They are automatically turned OFF
when the built-in RS-232C port is
restarted.
• Only bit 5 (timeout error) is valid in
NT Link mode.
• Serial PLC Link Polling Unit:
Bit 05: ON for timeout error.
Serial 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.
These flags indicate what kind of error
has occurred at Serial Option port.
• They are automatically turned OFF
when Serial Option port is restarted.
• Only bit 5 (timeout error) is valid in
NT Link mode.
• Serial PLC Link Polling Unit:
Bit 13: ON for timeout error.
Serial 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.
Set a dummy FAL/FALS number to
use to simulate the system error using
FAL or FALS.
Note When FAL or FALS is executed
and the number in A529 is the
same as the one specified in the
operand of the instruction, the
system error given in the oper-
and of the instruction will be gen-
erated instead of a user-defined
error.
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.
Status
after
Status at
Settings
mode
change
Bits 00 and 01: Not
Retained
Cleared
used.
Bit 02: ON for parity
error.
Bit 03: ON for fram-
ing error.
Bit 04: ON for over-
run error.
Bit 05: ON for time-
out error.
Bits 06 and 07: Not
used.
Bits 08 and 09: Not
Retained
Cleared
used.
Bit 10: ON for parity
error.
Bit 11: ON for fram-
ing error.
Bit 12: ON for over-
run error.
Bit 13: ON for time-
out error.
Bits 14 and 15: Not
used.
0001 to 01FF hex:
Retained
Cleared
FAL/FALS numbers
1 to 511
0000 or 0200 to
FFFF hex: No
FAL/FALS number
for system error sim-
ulation. (No error will
be generated.)
Retained
Cleared
Appendices
Related
Write
flags,
startup
timing
settings
A-73
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