Purpose

With Remote Tool Access, Siemens provides users, with "Service Level" (or higher) access rights, simple and secure access to the OZW web server.

The plant can be serviced at any time, from anywhere.

Functionality

Remote Tool Access establishes a secure tunnel connection to the web server via Synco IC. The connection is used for tool access:

  • By ACS
  • By ETS

Benefits

  • Simple and fast set up of Internet access - no fixed IP address, forwarding over a dynamic IP address, or port forwarding (NAT/PAT) required
  • The same view and operations as direct on-site access
  • Encrypted connection
  • No open ports on the router
  • No need to open the firewall
  • Access is to OZW only and not the entire LAN

Requirements

  • Web server as of version 7.0
  • The user has an account on Synco IC
  • Access level is "Service Level" or higher

Program

Remote Tool Access is an independent program. Remote Tool Access is distributed as part of the ACS CD or can be downloaded at the following URL:

https://support.industry.siemens.com/cs/ww/de/view/109481853

There are two ways to install the Remote Tool Access:

  • Together with the ACS790 installation
  • Individually
    • In the Setup folder, double-click file RemoteToolAccessSetup.exe
    • Select the "Remote Tool Access" button in the start routine for ACS790

Use

Some examples of possible uses:

  • Commissioning support by technicians without the need to be on site
  • Creating a commissioning protocol in the office
  • Offsite clarifications on a support call, e.g. automatic comparison of parameter sets
  • Simple remote modifications to the configuration
NOTICE

Actions requiring the buttons be pressed on the devices cannot be performed remotely (e.g. assigning KNX addresses). Also not possible are any actions requiring connections in excess of 24 hours (e.g. long-term computer trends).

Connect

The user logs in to the Remote Tool Access using the same Synco IC user name and password.

All the user's plants are listed on the overview page. The line displayed for the plants are

  • grayed out, i.e. the plants cannot be accessed,
    • if the access level is for end users only
    • if the plant is offline
    • if the OZW firmware version is older than V7.0
  • displayed in black, i.e. the plants can be accessed

Procedure

  1. Select the plant for connection.
  1. Click "Connect".
  • The software searches for an available local IP address between 127.0.0.1 and 127.0.0.255 connected to the selected OZW via Synco IC using this address.
  • It can be used with ACS or ETS as soon as it is connected.

ACS

  1. Open or create a project.
  1. If unavailable, add the OZW in the project in ACS menu "Topology".
  1. Select "Connections" in ACS.
  1. Select "Ethernet" as the connection type.
  1. Enter local IP address as per Remote Tool Access (e.g. 127.0.0.1).
  1. Confirm with "Next".

ETS

Connect as follows with ETS:

  1. Select "New Connection" in ETS.
  1. Select connection type "KNXnet/IP".
  1. Enter local IP address as per Remote Tool Access (e.g. 127.0.0.1).
  1. Confirm with OK.