The DNC menu item

Application

The DNC menu item allows you to permit or block access to the control (e.g., connections via a network or TNCremo).

Description of function

To navigate to this function:

Settings Network/Remote Access DNC

The DNC area contains the following icons:

Icon

Meaning

Add a computer-specific connection

Edit a computer-specific connection

Delete a computer-specific connection

When a connection is active, the control displays an icon in the information bar.

Icons on the control's user interface

The DNC area

In the DNC area you use toggle switches to activate the following functions:

Switch

Meaning

DNC access permitted

Permit or block all accesses to the control through a network

TNCopt full access allowed

Permit or block full access via TNCopt

Only for testing

Host computer operation

Pass command control to an external host computer, for example to transfer data to the control; or end host computer operation

If host computer operation is active, the control displays the Host computer is active message in the information bar. You cannot use the Manual and Program Run operating modes.

You cannot activate host computer operation while running an NC program.

Secure connections

The control displays general and customized settings for Secure connections. You can activate the following functions:

Row

Meaning

Fingerprint of the host key

Pressing the Show button tells the control to show a unique ASCII image that is equivalent to a fingerprint. When setting up a secure connection, you can compare this ASCII image to an image within the client application. That way you can ensure that you are connecting to the right control.

Setup permitted

If the toggle switch is active, client applications can establish a secure connection for the current user.

Activate this toggle switch only while you are setting up a connection.

Key management

In this row, you open the Certificate and keys window.

SSH-secured DNC connection

Computer-specific connections

If the machine manufacturer has defined the optional machine parameter CfgAccessControl (no. 123400), then in the Connections area you can permit or block access for up to 32 connections defined by you.

The control shows the defined information in a table:

Column

Meaning

Name

Host name of the external computer

Description

Additional information

IP address

Network address of the external computer

Access

  • Permit
  • The control permits network access without confirmation.

  • Inquire
  • The control asks for confirmation upon a network access attempt. You can choose whether to permit or block the access once or always.

  • Deny
  • The control does not permit network access.

Type

  • Com1
  • Serial interface 1

  • Com2
  • Serial interface 2

  • Ethernet
  • Network connection

Active

If a connection is active, the control displays a green circle. If a connection is inactive, the control displays a gray circle.

Notes

  • In the machine parameter allowDisable (no. 129202) the machine manufacturer defines whether the Host computer operation toggle switch is available.
  • In the optional machine parameter denyAllConnections (no. 123403) the machine manufacturer defines whether the control permits computer-specific connections.