Mitsubishi Electric MELSEC-A User Manual page 94

11. TROUBLESHOOTING
MELSEC-A
Table
1 1 . 1
Error Code List (Continued)
Error
Code
(Hexa-
decimal
-
13H
-
18H
-
20H
-
21H
-
31H
Error
Program
step
number
designatio
error
Remote
error
Data link
error
Special
function
module
bus error
Command
error
Error Description
irror in the designation of a sequence program step
lumber.
1) A step number was designated, which lay outside
the program range designated by the PC CPU
oarameters.
r -
2) A subsequence program that did not exist (or coulc
not be designated) was designated.
lemote RUNISTOP is impossible.
lemote STOPIPAUSE has already been executed
rom another module (such as another AJ71UC24).
kcess was made to a station with which
ommunications was discontinued.
demory access to the special function module cannot
,e made (for commands TR and TW).
1) Special function module control bus error
2) Special function module breakdown
m
AnACPU dedicated command has been used with
1
PC CPU other than the AnACPU.
2-PRO
(LED N0.18)
4-PRO
(LED No.22)
lndiCator
LEO No.
(1) Designate a step
number which lies
within the designate
range or change the
PC CPU parameter!
and restart
transmission.
(2) Check the model
name and the set
parameter values ol
the corresponding
PC CPU and wheth~
the request is
enabled.
~ ~
Corrective Actions
2-PRO
(LED No.18)
4-PRO
(LED No,22)
(1) Check whether
remote STOPIPAUI
is executed from
another module. If
executed, cancel it,
and restart
transmission.
2-CIN
(LED No.16)
4-CIN
(LED No.20)
I
representative.
Check the state of the
data link.
( L E ~ ~ ~ N ' 1 6 )
(LED No'20)
( I ) Error codes O O H to O8H are transmitted to a computer after diagnosis by an AJ71UC24,
when access is made by the computer to the AJ71UC24.
(2) Error codes 10H to 21H, 31H to 32H and 41H are transmitted from an AJ71 UC24 to a
computer after diagnosis by a PC CPU, when access is made by the AJ71UC24 to the
PC CPU.
The PC CPU, base
unit, special function
module or AJ71UC24
hardware has broken
down. Consult the
nearest Mitsubishi