Mitsubishi Electric MELSEC-A series User Manual page 83

Error
Error
Code
Message
(D9008)
"CONTROL- 40
BUS ERR."
"SP. UNIT 41
DOWN"
"I/O INT. 43
ERROR"
"SP. UNIT 44
LAY.
ERROR."
Table 6.1 Error Code List (Continue)
Detailed
Error CPU
Code States
(D9092)
— Stop The
tions cannot be executed.
(1)Error of control bus with
— Stop There is no reply from the
special function module dur-
ing execution of the
TO
(1)The special function mod-
— Stop Interrupt occurs though no
interrupt module is installed.
— Stop (1)Three or more computer
(2)Two or more MELSEC-
(3)Two or more interrupt
(4)A special function module
(5)The I/O module or spe-
Error and Cause
and instruc-
FROM TO
special function module.
FROM
instruction.
ule being accessed is
faulty.
link modules are installed
for a single CPU module.
NET (II), MELSECNET /B
or MELSECNET /10 data
link modules are installed.
modules are installed.
is installed to a slot
assigned to the I/O mod-
ule with parameter setup
of the peripheral device,
or vice versa.
cial function module is
installed outside the fol-
lowing I/O number
ranges, or GOT is con-
nected to the bus.
A1SH, A1SJHCPU: X0 to
XFF
A2SHCPU(S1): X0 to
X1FF
69
Corrective Action
The hardware of the special
function module, CPU mod-
ule or base unit is faulty.
Replace the faulty module
and check the faulty module.
Consult Mitsubishi represen-
tative.
The hardware of the special
function module being
or accessed is faulty. Consult
Mitsubishi representative.
The hardware of a module is
faulty. Replace the module
and check the faulty module.
Consult Mitsubishi represen-
tative.
(1)Reduce the number of
computer link modules to
within two.
(2)Reduce the number of
MELSECNET (II),
MELSECNET /B and
MELSECNET /10 data link
modules to one.
(3)Reduce the number of
interrupt modules to one.
(4)Using the peripheral
device, correct the param-
eter I/O assignment
according to the actual
state of installation of the
special function modules.
(5)Examine the I/O number
and remove the modules
and GOT installed outside
the range specified on the
left.