Ethernet Communication Module IFD9506 8.9 Security Settings To prevent the set values in IFD9506 from being modified, you can set up passwords to lock the settings in IFD9506. ѓ Setting up password 1. Password setup: 2. Password: Check the "Modify” box to set up the password. Max. 4 characters. 3. Confirm password: Enter the new password again. 4. See “10.1 Application Examples” for more details. DVP-PLC Application Manual 29