APPENDICES
APP
−
4
Table 1.1 CPU Error Code List (Continued)
Error Message
Contents of
Special
Register
D9008
(BIN Value)
CPU
Status
Error Contents and Cause
Corrective Action
"SP.UNIT ERROR"
(When a FROM, TO instruction is executed)
46
Stopped
(RUN)
(1) A location where there is no special function module
has been accessed (when the FROM, TO instruction
was executed).
(1) Read the error step using a pe-
ripheral device, check the contents
of the FROM, TO instruction at that
step, and correct it using the
peripheral device.
"LINK PARA.ERROR"
On switching on the power or resetting.
On switching from
STOP
PAUSE
to
RUN
STEP RUN
47
RUN
(1) The data written to the link parameter area when link
range settings are made by parameter setting at a
peripheral device differ for some reason from the
parameter data read by the CPU.
(2) The setting for the total number of slave stations is
"0".
(1) Write the parameters again and
check.
(2) If the error is displayed again, there
is a hardware fault.
Contact your nearest Mitsubishi
system service, agent, or office,
and explain the problem.
"OPERATION ERROR"
(When a command is executed)
50
RUN
(Stopped)
(1) The result of BCD conversion is outside the
stipulated range (max. 9999 or 99999999).
(2) A setting exceeding the stipulated device range has
been made and operation is therefore impossible.
(3) A file register has been used in the program without
having made a file register capacity setting.
(1) Read the error step with a
peripheral device, and correct the
program at that step.
(Check the device setting range,
BCD conversion value, etc.)
"BATTERY ERROR"
At any time
However, no check is performed when
M9084 is ON.
70
RUN
(1) The battery voltage has fallen below the stipulated
value.
(2) The battery's lead connector has not been installed.
(1) Replace the battery.
(2) If the battery is used to back up the
RAM memory or to retain memory
contents during momentary power
interruptions, install a lead
connector.
Downloaded from
