Mitsubishi MELSEC-A Series Programming Manual page 383

9. ERROR CODE LIST
Error
Error Massage Code
(D9008)
"LINK UNIT 42
ERROR"
"I/O INT. 43
ERROR"
"SP.UNIT 44
LAY.ERR."
Table 9.3 Error Code List for AnACPU and A3A Board (Continue)
Detailed
Error CPU
Code States
(D9091)
— 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).
— STOP Though the interrupt module is not
loaded, an interrupt occurred.
441 STOP 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.
442 There are 9 or more special function
modules (except the interrupt module)
which can execute interruption to the
CPU module loaded.
443 There are 2 or more data link modules
loaded.
444 There are 7 or more modules such as a
computer link module loaded to one
CPU module.
445 There are 2 or more interrupt modules
loaded.
446 Modules assigned by parameters for
MNT/MINI automatic refresh from the
peripheral device do not conform with
the types of station modules actually
linked.
447 The number of modules of I/O
assignment registration (number of
loaded modules) per one CPU module
for the special function modules which
can use dedicated instructions is larger
than the specified limit. (Total of the
number of computers shown below is
larger than 1344.)
Error and Cause
(AD59
(AD57(S1)/AD58
(AJ71C24(S3/S6/S8)
(AJ7IUC24
(AJ71C21(S1) (S2)
+ ((AJ71PT32(S3) in extension
mode
Total
9 - 17
Corrective Action
(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.
Since it is hardware error of a module,
replace and check a defective module.
For defective modules, consult Mitsubishi
representative.
Execute I/O assignment again using
parameters from the peripheral device
according to the loading status of special
function modules.
Reduce the special function modules
(except the interrupt module) which can
execute interrupt start to 8 or less.
Reduce the data link modules to 1 or
less.
Reduce the computer link modules to 6
or less.
Reduce the interrupt modules to 1 or
less.
Perform again module assignment for
MNT/MINI automatic refresh with
parameters according to actually linked
station modules.
Reduce the number of loaded special
function modules.
5)
8)
10)
10)
29)
125)
1344