Mitsubishi Electric MELSEC iQ-R Series User Manual page 140

Precautions
■Connection with LAN
Do not connect with LAN and set the direct connection. Since the data will be sent to all the target devices on the LAN, this
may increase the line load and affect communication with other target devices.
■Connections not corresponding to direct connection
• Do not create a configuration in which this product and a target device are connected via a hub. Otherwise, a direct
connection will not be established.
• If two or more Ethernet ports are set to "Enable" in the network setting on the personal computer, a direct connection
cannot be established. Review the setting of the personal computer so that only one Ethernet port to be used for the direct
connection is set to "Enable", and the other Ethernet ports are set to "Disable."
■Conditions that cannot communicate with a direct connection
A direct connection may not be established if any of the following conditions are satisfied. In this case, review the settings.
The examples of the error occurrence are as follows:
• When all the bits of the IP address of this product that correspond to 0 part of the personal computer-side subnet mask are
ON or OFF
Item
IP address of this product
IP address of a personal computer
Subnet mask of a personal computer
• When all the bits of the IP address of this product that correspond to the host address of each class of the personal
computer-side IP address are ON or OFF
Item
IP address of this product
IP address of a personal computer
Subnet mask of a personal computer
13 MELSOFT CONNECTION FUNCTION
138
13.1 Connection Method
Description
64.64.255.255
64.64.1.1
255.255.0.0
Description
64.64.255.255
192.168.0.1
255.0.0.0