MA-025 – DGA 900 Operator Guide – Rev 2.0 12-Apr-19 Page 40 of 92
6.10.5 Communication Services
Select Settings > Communication Services to open the Communication Services page as
shown in Figure 6-38.
Note: This functionality is available only to ‘Operator’ and ‘Administrator’ users.
All configuration settings specified on this page apply to all interfaces (Ethernet, USB and
GSM-GPRS modem).
Figure 6-38: Communication Services
Select the relevant slider button to enable/disable the relevant communication service. E.g.
Modbus-TCP, SSH (Secure Shell) and HTTPS — but do not rely on the firewall settings.
To implement a custom security policy, upload a new certificate to replace the GE self-
signed certificate and enable HTTPS requests only.
A certificate can be uploaded from a USB drive. In the Upload certificate field, click the
Select file button, select the new certificate (PEM file) and click Open.
Click the ‘Save’ button in the application header to apply the changes and then restart
the DGA 900.
Note: SSL certificates are small data files that digitally bind a cryptographic key to an
organization's details. When installed on a web server, it activates the padlock
and the HTTPS protocol and allows secure connections from a web server to a
browser.
Note: If HTTPS is disabled, the certificate will be applied when HTTPS is enabled.
Note: The HMI has no automatic redirection between HTTP and HTTPS (or vice versa).
This results in the following browser message “Site cannot be reached over
HTTP”.
To Next Page
Loading...
