13.1 Overview of Communication Function
13.1 Overview of Communication Function
The GM1 controller allows general-purpose communication, Modbus communication, and
EtherNet/IP communication with external devices via COM and LAN ports.
The following table shows the functions supported by each port.
Port
COM port
LAN port 1
LAN port 2
● The IP address of the LAN port can be changed using the "PLC Parameters" tab in the Device
setting window.
For details, refer to
13.1.1 Adding Network Communication Devices
Add a communication device object to the device object of a LAN port.
For example, use the following procedure to add "ModbusTCP Slave Device" to LAN port 1.
1.
Right-click the "LANPort1" object in the navigator pane and then select "Add Device" from
the context-sensitive menu that is displayed.
The "Add Device" dialog box will be displayed.
13-2
Supported protocol
General-purpose communication
MODBUS-RTU(Master / Slave)
General-purpose communication
MODBUS-TCP(Master / Slave)
General-purpose communication
MODBUS-TCP(Master / Slave)
EtherNet/IP(Scanner / Adapter)
"5.2 Setting up the GM1
Maximum number of connections
1 port
16 connections
32 connections
Controller".
WUME-GM1RTXOP-01