Omron CJ2M-CPU3@ User Manual

Flashing 
red

---

E8

Device Param-
eters Error

The I/O Area set 
in the device 
parameters 
does not exist in 
the CPU Unit, or 
the EM Area 
was converted 
to file memory.

There is an error in 
the parameter set-
tings stored in the 
Unit’s non-volatile 
memory. (An error 
can occur when 
power is interrupted 
while data is being 
written to non-volatile 
memory.)

The Unit Error 
Occurred Flag (n+10, 
bit 00) and Invalid 
Communications 
Parameter Flag 
(n+12, bit 04) will go 
ON.

021A

Download the Unit 
Setup from the tab 
pages of the Edit 
Parameters Dialog 
Box of the CX-Pro-
grammer and 
download the 
device parameters 
from the Network 
Configurator. If the 
error recurs, 
replace the Ether-
Net/IP Unit or (for a 
built-in EtherNet/IP 
port) the CPU Unit.

If the ladder pro-
gram uses the 
OUT instruction to 
turn ON the CPU 
Bus Unit Restart 
Bit, change the 
OUT instruction to 
the SET instruc-
tion and download 
the parameters 
again. 

A checksum 
error or logic 
error was 
detected in the 
parameters.

The Unit was 
mounted to a 
different PLC 
(e.g., from CJ1 
to CJ2) after the 
Unit settings 
were made.

Flashing 
red

---

EA

IP Advanced 
Settings Error

03D1

Identify the error 
log data, correct 
the settings, and 
then download the 
Unit Setup from the 
tab pages of the 
Edit Parameters 
Dialog Box of the 
CX-Programmer 

Flashing 
red

---

F2

Ethernet Basic 
Settings Error

03D0

Download the set-
tings from the TCP/
IP or Ethernet Tab 
Pages of the Edit 
Parameters Dialog 
Box of the CX-Pro-
grammer or down-
load the TCP/IP 
settings from the 
Network Configu-
rator.