The MQTT interface is used to send and receive data and information from MQTT broker. Within this definition file, the used MQTT brokers have to be specified.
| Info |
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<WorkspaceDirectory>\DataFiles\xio.Mqtt.Broker.dat |
| Col# | Parameter | Description | Scope | Unit | Mandatory / default value |
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| 1 | Name | Mandatory name identifying the MQTT broker within the NETx Server. In combination with Path, it must be unique. | string | None | mandatory |
| 2 | Path | The structure that is used to represent the data point. In combination with the Name, it must be unique. | string | None | empty |
| 3 | IP address | IP address of MQTT broker. | string | None | mandatory |
| 4 | Auto-Reconnect | Timeout in milliseconds between connection attempts. | 100 – 65535 | milliseconds | 1000 |
| 5 | Port | TCP port used for the communication with MQTT broker. | 0 – 65535 | TCP port | 1883 |
| 6 | Client Username | If the MQTT broker requires authentication of connecting MQTT client, the username must specified here. | string | None | empty |
| 7 | Client Password | If the MQTT broker requires authentication of connecting MQTT client, the password must specified here. | string | None | empty |
| 8 | TLS | Defines whether TLS shall be enabled for the communication with the MQTT |
boker| broker. | boolean | true/false | false |
| 9 | TLS Version | If TLS is enabled, the used TLS version must be specified here. | None, SSLv3, TLSv1_0, TLSv1_1, TLSv1_2 | none | None |
| 10 | CA certificate file | Certificate file of the CA that issued the broker's TLS certificate. This certificate is used to verify the TLS server certificate. Normally, this file has the extension .crt. | string | none | empty |
| 11 | CA certificate password | If the CA certificate is password protected, the password must be entered here. | string | none | empty |
| 12 | Culture info |
Invariant culture | | Defines the culture info that is used to transfer values from and to MQTT brokers. If left empty, the culture info from the driver configuration is used. | string | none | Culture from driver configuration |
| 13 | Client certificate file | If the broker requires a client certificate for connecting to it, the certificate file has to be defined here. It must also contain the private key. Normally, this file has the extension .pfx. | string | none | empty |
| 14 | Client certificate password | If the client certificate is password protected, the password must be entered here. | string | none | empty |
| 15 | Keep alive timeout | Timeout in seconds between sending keep alive packets to MQTT broker. | 1 – 65535 | seconds | 60 |