1. LIST OF ALARMS
1.5 System Alarms
I - 26
1.5 System Alarms
The following messages are displayed with the register at the time when the error occurred if the system
stops due to a system error.
Message Details Remedy
Parity error RAM error • Write down the displayed register‚ and
Bus error A non-existing memory was accessed. contact the service center.
Zero divide The division with a 0 denominator was
attempted.
Watch dog
error
The software process is not functioning
correctly.
Illegal
exception
The alarm was caused by an illegal
software function not listed above.
Address error An illegal memory was accessed.
Illegal
instruction
The software process is not functioning
correctly.
Stack
overflow
Z31 DATA SERVER ERROR
↑
Warning No.
Warning No. Explanation
0001 Socket open error (socket)
0002 Socket bind error (bind)
0003 Connection wait queue error (listen)
0004 Connection request acceptance error (accept)
0005 Data receive error (socket error)
0006 Data receive error (data shortage or disconnection)
0007 Data receive error (socket error)
0008 Data receive error (data shortage or disconnection)
000A Socket close error (close)
Note: If warning No. 0001, 0002, 0003, or 000A is displayed, set the parameters, then turn power OFF and turn it
ON again.
Message Details Remedy
Z40
FORMAT
NOT MET
This appears when the parameter MemVal
is formatted at 0, and MemVal is set to 1.
• Either return the MemVal setting, or format
and restart.
