Introduction

This article provides a step-by-step guide for establishing communication between an NS Runtime Industrial PC (IPC) and a CJ1M PLC over Ethernet. It outlines the required configuration in CX-Designer and key setup considerations to ensure reliable connectivity.

Pre-Requisites

Before proceeding, ensure the following:

• The NS project has been converted to an NS Runtime project
• You have working knowledge of CX-Designer
• The PLC hardware and network infrastructure are properly installed and operational

System Assumptions

This guide is based on the following setup:

• The CJ1M PLC is equipped with either a CJ1W-ETN11 or CJ1W-ETN21 Ethernet module
• The Ethernet module is configured with:
  • IP Address: 192.168.250.1
  • FINS Node: 1
• The NS Runtime IPC is connected to the same local network
• CX-Integrator has been used to assign:
  • Network Number: 1 (for the CJ1M Ethernet module)

Configuration Procedure

NS Runtime Communication Settings

All communication settings are configured within CX-Designer.

Enable Ethernet Communication

• Open the project in CX-Designer
• Navigate to the communication settings
• Enable Ethernet
• Add a host if one does not already exist

Configure Ethernet Parameters
In the Ethernet settings, apply the following:

• Network Address: 1
  (Note: This is a local network and cannot be set to 0)
• Node Address: 2
  (This corresponds to an IPC IP address of 192.168.250.2)
• UDP Port: 9600
  (Default port for FINS communication)
   

Set Up the Conversion Table (Important Step)
 

• Navigate to the Conversion Table section
• Click Add to create a new entry if one does not exist
• Select the relevant Ethernet host (e.g., HOST3)
• Host Type: SYSMAC-CS1/CJ1/CP1
• Protocol: FINS
• Network Address: 1
• Node Address: 1

Download to NS Runtime IPC

• Save the project
• Transfer the updated configuration to the NS Runtime IPC

Summary

By correctly configuring Ethernet communication and the conversion table in CX-Designer, the NS Runtime IPC can successfully communicate with the CJ1M PLC using the FINS protocol. Ensuring that network numbers, node addresses, and IP settings are aligned is critical for establishing a stable connection.