IMO iSmart V4 - Ismart System Error

Chapter 3 Program Tools 61
iSmart system error
After power on, iSmart keep detecting the running state. Once system error occurred, the error code will display
on LCD. At the same time, iSmart will stop or just give error-warning base on the error type. Error types are show
in the table below:
Error code
Explain
Error action
Why and How
ROM ERROR
System ROM/Flash memory check
error
iSmart STOP
If the version of the firmware is older
than 3.4, update to 3.4 or newer; then
if the error occurs again, contact with
suppliers
Vpd ERROR
Power down circuits check error
iSmart STOP
Voltage is too low; apply the
appropriate voltage
PROG ERROR
Ladder / FBD code invalid in
EEPROM.
iSmart STOP
Download the user program and try
again.
LOGIC ERROR
FBD code logic check error
iSmart STOP
There is same logic error in the user
program, modify it and try again.
EXT. ERROR
Expansion I/O error (When disable I/O
alarm in “SET” of the main function,
The alarm cannot appear.)
iSmart STOP
Extend module set number is not same
with the actual number, check the
system set.
COMM ERROR
RS485 type communication error
Warning only
CD type module communication error,
check the COMM protocol.
RTC ERROR
RTC check or work error
Warning only
Contact with suppliers.