Mitsubishi A1SJH(S8) User Manual

11 - 9
11. TROUBLESHOOTING
11.2.8 Flow for actions when the program cannot be written
The flowchart when the program and other data cannot be written to the CPU module is
described.
*
When using the E
2
PROM memory cassette, confirm that the memory protect setting pin is at
"OFF" on the A2SNMCA-30KE modules.
RUN
STOP
YES
NO YES
YES
NO
YES
ON
OFF
NO YES
Program cannot be written
to the programmable
controller CPU
Is the RUN/STOP
keyswitch set
to STOP?
Is the memory protect
switch OFF?
Is a ROM
memory cassette
used?
Counstult your nearest
Mitsubishi representative.
Set the RUN/STOP
keyswitch to STOP
Can the program
be written?
Replace the programmable
controller CPU.
Switch OFF the memory
protect.(M.PRO OFF)
Complete
NO
Can the program
be written?
Can the
program be
written?
*
Replace the E PROM
memory cassette or use a
built-in RAM
2
Can the
program be
written?
NO

Mitsubishi A1SJH(S8) Specifications

General

Brand	Mitsubishi
Model	A1SJH(S8)
Category	Controller
Language	English