How do I change the IP address of the EJ1N-HFU-ETN? (Without a PROFINET IO Controller)
The EJ1N-HFU-ETN has no hardware settings like rotary or dip switches to change its IP-address. It has to be done through a software tool.
As the unit is a PROFINET IO Device its PROFINET name and IP-address can be edited with any PROFINET scan-tool. There is one included in the configuration tool for the CJ1W-PNT21 and can be used with the unit. The tool will go directly on the network to scan for PROFINET IO devices.
- Start Cx-ConfiguratorFDT.
- Insert a CJ1W-PNT21 in the network list.
- Open the CJ1W-PNT21 for configuration.
- First scan the network for devices and select the EJ1N-HFU-ETN you want to configure.
- Right-click the EJ1N-HFU-ETN you want to configure and select Set IP-Address
- Enter the IP-address you want to assign to the unit.
- Make sure you deselect Temporary Setting. Otherwise you will loose the IP-address when the device is rebooted.
- Select OK to set the IP-address.
The EJ1N-HFU-ETN can now be reached at this IP-address.
Unless you are using the EJ1N-HFU-ETN in Modbus/TCP standalone mode, do not un-check the Store settings temporarily option when setting an IP addresses for the EJ1N-HFU-ETN. Mixing permanent and dynamically assigned IP addresses in a system can easily result in IP address conflicts. IP address conflicts cause all sorts of problems that are notoriously difficult to troubleshoot.
ps. In the example below a CJ1W-PNT21 PROFINET IO Controller is detected but for setting up the EJ1-HFUT-ETN this device is not needed.
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