Modbus TCP/IP Filtering

The Modbus TCP/IP filtering is a security feature that lists the IP addresses that the gateway can accept. This function is used only with Ethernet static addressing mode. This page is used to configure the IP address to enable the write access.

Step	Action
1	Launch the PowerTag Link webpage in the web browser.
2	Login with user name and password.
3	Click Settings > Communication > Modbus TCP/IP Filtering.

Follow the procedure to configure the IP address to enable the write access:

Step	Action
1	Select the Enable Modbus TCP/IP Filtering check box.
2	Click Add exception to add the IP address and access level. A maximum of 10 IP address can be added. The IP address added has a write access.
3	Enter the IP address in the IP Address/Range area and select the Access level for the entered IP address.
4	Click Apply Changes to save the settings. Click Cancel Changes to revert the settings.

NOTE: You can only edit the global IP address range, but you cannot delete the global IP address range. You can edit and delete the added exceptions.