EtherNet/IP example: Cyclic communication between FP0H and FP7

To be more flexible in using different PLC addresses for communication, set the parameter Auto Allocation to No. Otherwise, only PLC addresses of the type LD can be used.

EtherNet/IP example

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For communication purposes, no PLC program is required. Nevertheless, the sample programs contain:

• Global variables for data exchange

• A DUT (data unit type) to access communication data with different data types

• EtherNet/IP communication status bits

• Some code for measuring the number of transmission cycles per second

Overview: Cyclic communication between FP0H and FP7

Add each PLC to the scan list of the other PLC, and make the data available to the other device.

Data exchange in this example:

Configure the parameter Auto Allocation

1. Set the PLC type FP0H C32ET/EP or FP07 CPS3RE(S), FP07 CPS31E(S), FP07 CPS4RE(S), FP07 CPS41E(S).

2. Double-click PLC > System registers > Ethernet.

3. Double-click EtherNet/IP to open the EtherNet/IP setting window.

4. Select Setting > EtherNet/IP Basic Configuration... from the menu bar.

5. In the dialog, select No for Auto Allocation.

Configure cyclic communication between FP0H and FP7

• Set the IP address of your CPU: System registers > Ethernet > IP address.

• Double-click EtherNet/IP to open the EtherNet/IP setting window.

1. Select the adapter device from the Device List and drag it into the scan list.

2. Set the IP address of the adapter device.

3. Configure the data available for reading.

4. For the adapter device, configure the data to read, ensuring it matches the size of the data available for reading.