Enabling Unsecured Connections - Mitsubishi Electric MELSEC iQ-F FX5 User Manual

7.4

Enabling Unsecured Connections

Unsecured connections with OPC UA clients are disabled by default.
By changing a module parameter setting in GX Works3 or security parameter setting in OPC UA Module Configuration Tool,
an FX5-OPC allows unsecured connections with OPC UA clients.
However, note that it is recommended to always use secure connections in an OPC UA system.
Setting method
Unsecured connections can be enabled with either of the following methods.
• GX Works3: Select "Enable" for "Unsecure Connection" in the security settings of module parameters.(Page 57
Application settings)
• OPC UA Module Configuration Tool: Select the checkbox of "Enable Unsecure Connection" in the [Security Parameter]
tab.(Page 66 General settings)
When both parameters are set
When the setting for unsecured connections is configured in both module parameters and security parameters, the one in the
security parameters takes priority.
The following table shows the setting status of each of the parameters and whether unsecured connections are actually
enabled or disabled.
■Module parameters are not stored in a CPU module:
Security parameter
Not stored in an FX5-OPC
Stored in an FX5-OPC
■Unsecured connections are disabled in module parameters:
Security parameter
Not stored in an FX5-OPC
Stored in an FX5-OPC
■Unsecured connections are enabled in module parameters:
Security parameter
Not stored in an FX5-OPC
Stored in an FX5-OPC
7 PARAMETER SETTINGS
74
7.4 Enabling Unsecured Connections
Unsecured connections are disabled.
Unsecured connections are enabled.
Unsecured connections are disabled.
Unsecured connections are enabled.
Unsecured connections are disabled.
Unsecured connections are enabled.
Unsecured connection
Disabled
Disabled
Enabled
Unsecured connection
Disabled
Disabled
Enabled
Unsecured connection
Enabled
Disabled
Enabled