Mitsubishi Melsec A User Manual page 92

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8. TROUBLESHOOTING
IMELSE
Error
Numbel
-
51
-
52
-
53
-
54
-
55
-
56
-
57
-
58
-
60
-
70
-
81
-
82
-
83
-
84
-
91
-
92
-
93
-
94
-
99
-
Error
ORST error
Stack error
Duplex WAIT errol
BTWF error
Receive buffer full error
Send buffer full
error
PC CPU error
Desription
I
Location
I
CorreCtiw Action
A task has been restarted before it
has completed.
Correct task start condition
Task 5
Tark 8
Stack used is outside the system
In BASIC a maximum of ten levels
stack area.
1 - 1
tionr
of GOSUB
are allowed.
or FORINEXT instruc-
RAM contents for system's task
Check whether the system memory
schedule have been rewritten.
has been accessed by the
user
pro-
511 bytesof received data in receive
Do not rend mare than 512 bytes
buffer.
IRS-422 CHI
I
127 bytes of send data in send
Empty
the
external
equipment
buffer.
displayed after an inswn-
wneous power failure.
1) PC CPU has been reset during
communication.
2) Time out error has occurred
during PC accessing by system
subroutine.
3) PC CPU error detected by WDT
andcommunication hasstopped.
Note: Enor code
99
is sometimes
-
AD51 programexecution notdirect-
ly affected.

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