Mitsubishi Electric MELSEC A Series User Manual page 146

Table 6.3 Error Code List for AnUCPU (Continue)
Error
Error
Code
Massage
(D9008)
"OPERATI 50
ON
ERROR"
(Checked
at
execution
of
instruction.)
Detailed
CPU
Error
Code States
(D9091)
509 STOP (1) An instruction which
(2) When the
(3) The
(4) The number of
133
Error and Cause
cannot be executed
by remote terminal
modules connected
to the
MNET/MINI-S3 was
executed to the
modules.
PRC
instruction was
executed to a
remote terminal, the
communication
request registration
areas overflowed.
PIDCONT
instruction was
executed without
executing the
PIDINIT
instruction.
The PID57
instruction was
executed without
executing the
PIDINIT or
PIDCONT
instruction.
CC-Link dedicated
command executed
in one scan
exceeded 10.
Corrective Action
(1) Read the error step
using a peripheral
device and correct
the program, meeting
loaded conditions of
remote terminal
modules.
(2) Provide interlock
using M9081
(communication
request registration
areas BUSY signal)
or D9081 (number of
vacant areas in the
communication
request registration
areas) when the
PRC instruction is
executed to a remote
terminal.
(3) Execute the
PIDCONT
instruction after
execution of the
PIDINIT
instruction.
Execute the
PID57 instruction
after execution of the
PIDINIT and
PIDCONT
instructions.
(4) Set the number of
CC-Link dedicated
commands executed
in one scan to 10 or
less.