11-3
11 Programming Devices and Communications
CJ2 CPU Unit Software User’s Manual
11-1 Accessing a PLC from the CX-
Programmer
11
11-1-1 Overview
Either of the following two procedures can be used to connect online to a PLC from the CX-Program-
mer.
z Change PLC Dialog Box
Set the method for accessing the target PLC for the CX-Programmer project. This setting is made
when creating the project, but it can be changed after the project has been created.
z Automatic Online Connection
An automatic online connection is used to access a PLC for which a connection has been estab-
lished. It can be used without creating a CX-Programmer project.
Direct Connection
Direct connection is used to connect online to a PLC connected directly to the CX-Programmer
through a serial port.
EtherNet/IP Node Connection
An EtherNet/IP node connection is used to access a PLC for which a connection has been estab-
lished through EtherNet/IP. Even if the IP address of the target PLC is not known, the PLC can be
accessed by searching for it.
Procedures for Connecting Online to a PLC
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