505
The Error Log contains a record the last 100 errors and can be expanded in
the PC Setup to record up to 2,047 errors. Each record stores the error code,
the error contents (for example the SFC error code for an SFC error), and the
date and time that the error occurred. Refer to
3-6-15 Error Log Area
for de-
tails.
After eliminating the cause of an error, clear the error message from memory
before resuming operation.
8-4-1 Initialization Errors
The following errors occur before program execution has been started. The
POWER indicator will be lit and the RUN indicator will not be lit for any of these.
The RUN output will be OFF for each of these errors. The alarm indicator
(ALARM) will be ON for the I/O table verification error.
Error Probable cause Flag(s) Error code
(A400)
Possible remedy
Waiting for start input Start input on CPU Power
Unit is OFF.
A30600 None Turn ON the start input on the
CPU Power Unit or short start
input terminals on the CPU Power
Unit.
Waiting for SYSMAC BUS Power to Slave is OFF or
terminator is not set or
doubly set.
A30602 None Check power supply to Slaves
and terminator setting.
Initializing CPU Bus Unit SYSMAC BUS/2 terminator
is missing or power to Slave
is OFF.
A30603 None Check power supply to Slaves
and terminator setting.
I/O table error A Unit has been changed
making the I/O table
incorrect.
A30601
A40209
00E7 Check the I/O table from the
CVSS/SSS and either connect
Dummy I/O Units or correct the
I/O table.
Note The I/O table verification error can be set as an initialization error in the PC Set-
up.
8-4-2 Non-fatal Operating Errors
The following errors occur after program execution has been started. PC opera-
tion and program execution will continue after one or more of these errors have
occurred. For each of these errors, the POWER, RUN, and ALARM indicators
will be lit and the ERROR indicator will not be lit. The RUN output will be ON.
Error Probable cause Flag(s) Error code
(A400)
Possible remedy
FAL error FAL(006) has been executed in
program. Check the FAL number
to determine conditions that
would cause execution
(programmed by user).
A40215 4101 to 42FF
correspond to
FAL numbers
001 to 511.
Correct according to cause
indicated by FAL number
(set by user).
Jump error No JME(005) for a JMP(004),
CJP(221), or CJPN(222) in the
program.
A40213 00F9 Check and correct the
program.
Indirect DM BCD error Indirectly addressed DM address
data is not BCD.
A40212 00F8
Non-fatal SFC error An error has occurred during
SFC execution.
A40211 00F4 Check and correct the
program. (Refer to the next
table for information on
non-fatal SFC errors.)
Expansion I/O Rack power
interruption (when set in
PC Setup)
Power is not being supplied to an
Expansion I/O Rack.
A40210 00001 Supply power to the Racks.
Check A419 (CPU-
recognized Rack Numbers)
Error Messages Section 8-4
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