124
Table 6.3 Error Code List for AnUCPU (Continue)
Error
Massage
Error
Code
(D9008)
Detailed
Error
Code
(D9091)
CPU
States
Error and Cause
Corrective Action
"LINK UNIT
ERROR"
42
STOP
(1) Either data link
module is loaded to
the master station.
(2) There are 2 link
modules which are
set to the master
station (station 0).
(1) Remove data link
module from the
master station.
(2) Reduce the number
of master stations to
1.
Reduce the link
modules to 1 when
the 3-tier system is
not used.
"I/O INT.
ERROR"
43
STOP
Though the interrupt
module is not loaded,
an interrupt occurred.
Since it is hardware
error of a module,
replace and check a
defective module. For
defective modules,
consult Mitsubishi
representative.
441
A special function
module is assigned as
an I/O module, or vice
versa, in the I/O
assignment using
parameters from the
peripheral device.
Execute I/O assignment
again using parameters
from the peripheral
device according to the
loading status of special
function modules.
442
There are 9 or more
special function
modules (except the
interrupt module) which
can execute
interruption to the CPU
module loaded.
Reduce the special
function modules
(except the interrupt
module) which can
execute interrupt start to
8 or less.
443
There are 2 or more
data link modules
loaded.
Reduce the data link
modules to 1 or less.
"SP.UNIT
LAY.ERR."
44
444
STOP
There are 7 or more
modules such as a
computer link module
loaded to one CPU
module.
Reduce the computer
link modules to 6 or
less.
Summary of Contents for Melsec A Series
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