If at least one subsystem is connected through remote access, you have to create a gateway with the corresponding units on the remote site. You can prepare both the Cu-Handler and Vu-Handler unit for remote use. Typically, you only use the Cu-Handler remote.

Configuring the Cu-Handler for Remote Access

In order to enable remote access, you first have to configure the gateway and respective Cu-Handler unit accordingly.

  1. In the navigation pane, select the site and afterwards the gateway that you have created.
  1. Enter the IP address of the local computer in the Master field.
  1. Click P to check the connection.
  1. Enter the root password and click Connect.
  1. Click Submit.
  1. Select the subsystem Cu-Handler.
  1. Enter the IP address of the target computer in the Remote field.
  1. Click P to check the connection.
  1. Enter the root password and click Connect.
  • A message confirming the successful connection appears.
  1. In the Required or non-default attributes tab, edit the following attribute:
  • proxyhostname: Enter the IP address of the target computer with the specification of the port 1024 in the format [IP address]/1024.
NOTICE

Keep in mind that, while configuring Cu-Handler for remote access of the SIGMASYS interface, the IP address of the OIS user’s target computer must be entered in the Remote field in the following format: ois@[Target Computer IP address]. And for proxyhostname, the IP address of the OIS user’s target computer must be entered with the specification of the port 1024 in the following format: ois@[Target Computer IP address]/1024.

  1. Depending on the subsystem, configure the Cu-Handler unit as done during a typical configuration. For more information refer to: Configuring Units and Devices.
  1. Click Submit.
  1. Upload the gateway. For more information refer to: Uploading the Gateway Configuration.

Configuring the Vu-Handler Unit for Remote Access

In special cases it can also be necessary to configure the respective engineering/viewpoint and runtime Vu-Handler units.

The number of available Vu-Handlers depends on the selected template. You can only connect as many Vu-Handlers as are available by default.

  1. In the navigation pane, select the site and afterwards the gateway that you have created.
  1. Select the engineering or viewpoint Vu-Handler unit.
  1. Enter the IP address of the local computer in the Remote field.
  1. Click P to check the connection.
  1. In the Required or non-default attributes tab, edit the following attribute:
  • proxyhostname: Enter the IP address of the target computer with the specification of the port 1025:1026 in the format [IP address]/1025:1026.
  1. Click Submit.
  1. If a runtime unit is available, select the runtime Vu-Handler unit.
  1. Enter the IP address of the local computer in the Remote field.
  1. Click P to check the connection.
  1. In the Required or non-default attributes tab, edit the following attribute:
  • proxyhostname: Enter the IP address of the target computer with the specification of the port 1027:1028 in the format [IP address]/1027:1028.
  1. Click Submit.