Results

Configuring the network

Requirement

Settings of the OPC UA configuration dialog

Setting

Description

Connection settings

Company network:

Activate the check box.

System network:

Activate the check box.

TCP port:

TCP port via which the OPC UA communicates. This is added to the firewall exceptions for NCU and PPU. (Standard for the OPC UA communication is the TCP port 4840)

Message encryption

None:

Deselect the check box.

128-bit:

Activate the check box.

256-bit

Activate the check box.

Authentication

Admin user:

Name of the administrator with which you can add or delete other users and assign or delete user rights.

Password:

Administrator password

You can change the password at a later point in time using the "ChangeMyPassword" OPC UA method.

Confirm password:

Confirm the entered password.

Allow anonymous access

Activate the check box.

Automatically accepting certificates:

Activate the check box.

Activation

Activate OPC UA

Activate the check box.

NOTE

Security risk through no or weak encryption

If no message encryption has been set up to the client, there is a risk of data manipulation. It is therefore strongly recommended that you set up a message encryption to the client.

Use the highest possible encryption standard (256 bit) to ensure secure message transmission.

NOTE

Assigning secure passwords

Observe the following rules when creating new passwords:

  • Note that when assigning new passwords you should never assign passwords that can be easily guessed, such as simple words, easy to guess key sequences on the keyboard, etc.

  • Passwords must always contain a combination of upper- and lower-case letters as well as numbers and special characters. Passwords must comprise at least 8 characters. PINs must comprise an arbitrary sequence of digits.

  • Wherever possible and where it is supported by the IT systems and the software, a password must always have a character sequence as complex as possible.

Procedure

  1. Open the "Setup" operating area.

  2. Press the "Network" softkey.

  3. Make the required settings for the connection, authentication and activation.

  4. Press the "OK" softkey.

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  5. Perform a hardware reset on the NCU and PPU target systems.
    Restart the operating software on the PCU.

Further information

You can find further information in:
Configuration Manual Access MyMachine / OPC UA.

Chap. 5.2.2