Mitsumi electronic NZ2GF-ETB ユーザーズマニュアル

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CHAPTER 9 TROUBLESHOOTING

9.4  T

roubleshooting by Symptom

9.4.7  C

ommunications ca

nnot be per

formed u

sing the IP pa

cket tran

sfer
 function

Before troubleshooting the problem as listed below, execute the IP communication test and take corrective actions 

according to the error code. (

If the problem cannot be solved using the IP communication test, execute the actions listed below.

Does the Ethernet adapter module support the IP packet 
transfer function?

• Check that bit 1 of Function check area of the own station (buffer memory 

address: 48 (30

H

)) is on.

• Check that the serial number (first five digits) of the Ethernet adapter module 

is 14022 or later.

 (

When the IP address of the Ethernet adapter module 
(Ethernet part) is the same as the network address of the 
master station, is the IP address (the third and fourth 
octets) of the external device and Ethernet adapter 
module (Ethernet part) within the setting range?

• Set the IP address that meets the rules described on Page 106, Section 

7.3.1 (1) in the external device and Ethernet adapter module (Ethernet part).

• Change the IP address of CC-Link IE Field Network in the master station so 

that the IP address of the external device and Ethernet adapter module 
(Ethernet part) differs from the network address of the master station.

Is the IP address already in use?

• For the external device, set the IP address different from that of other 

devices on the network, such as a CPU module, master/local module, and 
Ethernet adapter module.

• Disconnect the external device from the line and execute the Ping command 

to the IP address of the disconnected external device. If a response is 
received even though the external device is disconnected, the IP address is 
already in use. Change the IP address. 

Has a timeout error occurred in the IP communication 
test?

Check “Relay Network No.” in the routing parameters of the master station and 
local stations.

Have the routing parameters correctly been set in the 
master station and local stations?

• Check and correct the routing parameters of the master station and local 

stations.

• When the first and second octets of the IP address are the same for the 

request source external device, request destination external device, and 
modules between them, set the routing parameters so that the third octet of 
the IP address of the external device is used as "Target Network No.".

• If a timeout error occurs in the IP communication test, enter the IP address 

in the order of station from the closest to the device where the IP 
communication test was executed. Repeat the test until which station can or 

cannot receive communications to identify the error. (

Section 7.3.6 (2) (b))
If the station causing the error is found, check and correct the settings.

Is the network number of the external device side (the 
third octet of the IP address) the same as that of modules 
and another external device? (This applies only when the 
request source external device, request destination 
external device, and modules between them have the 
same first and second octets of the IP address.)

Change the network number of the external device side (the third octet of the 
IP address) to the one different from that of modules and another external 
device.

Master station

Station No.1

Station No.2

Network No.1

Network No.

Network No.

192.168.

.1

192.168.

.1

192.168.

.30

192.168.

.30

192.168.1.1 

(Automatically assigned)

192.168.1.125

192.168.1.2 

(Automatically assigned)

Ethernet

CC-Link 
IE Field 
Network

IP address

Change the network numbers to those not used for other stations.