Panasonic GM1 - Overview of Communication Functions

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 Supported protocol Maximum number of connections
COM port
General-purpose communication
MODBUS-R
TU(Master / Slave)
1 port
LAN port 1
General-purpose communication
MODBUS-TCP(Master / Slave)
16 connections
LAN port 2
General-purpose communication
MODBUS-TCP(Master / Slave)
EtherNet/IP(Scanner / Adapter)
32 connections
● The IP address of the LAN port can be changed using the "PLC Parameters" tab in the Device
setting window
.
For details, refer to "5.2 Setting up the GM1 Controller".
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.
13.1 Overview of Communication Function
13-2 WUME-GM1RTXOP-01