Ethernet Communication Module IFD9506 8.6 IP Filter The IP filter is used for restricting the connection of the network in case some uncertain UP will cause errors. Only the IP set within a certain range can establish a connection. Other IPs will be rejected. ѓ Setting up IP filter 1. Enable IP filter function: 2. IP address: Check the box to enable IP filter. IP addresses that are allowed to establish connections. Max. 8 IPs are allowed. 3. Netmask: Subnet mask of the UP that is allowed to establish a connection. To see whether the subnet mask is allowed, conduct bitwise AND operation between the allowed IP and subnet mask and destination IP and subnet mask.
If the two values obtained are the same, the subnet mask is allowed by the network. For example, assume the IP is 192.168.0.1 and subnet mask 255.255.255.0, the IPs allowed to establish connections will become 192.168.0.0 ~ 192.168.0.255. 8.7 User Defined Format You can define your own format for the data to be transmitted. The items to be defined include the fixed length, start item and stop item. „ Select RS-232 or RS-485 to connect the device DVP-PLC Application Manual 24