ET_Result

Enumeration

V1.0.0.0

If q_xError of a function block is FALSE, one of the following status messages is shown.

The function block is disabled.

Ongoing disabling process of the function block.

An internal resource is being initialized.

The attempt to establish a connection has been started but no result is available yet.

The connection to the server is successfully established.

The function block is ready to be executed.

Sending message to server.

Waiting for an acknowledged message from the server.

The function block has been executed successfully.

If q_xError of a function block is TRUE, one of the following status messages is shown.

The specified IP address is invalid.

The specified port is invalid.

The specified username is invalid. It cannot be empty if a password is set.

A value is assigned to both the parameters sHostname and sIpAddress.

If a proxy handler is assigned for the FB_MqttClient only one value is allowed for addressing the MQTT server; either the host name or the IP address.

Connection to the server was not successful.

No connection to the server. Verify the status of the FB_MqttClient instance.

The specified topic is invalid. It cannot be empty.

The specified topic length is invalid. It cannot be 0.

The specified pointer to the data is invalid. It cannot be a null reference.

The specified quality of service is not supported. Quality of service 0 and 1 are supported.

The attempt to establish a connection is unsuccessful because the remote system denied it.

Verify that the identifier defined with the sClientId parameter does not exceed the length defined with the global constant GPL.Gc_uiMaxLengthOfClientID.

The specified topic is already subscribed by another FB_MqttSubscribe instance.

The subscription to the given topic was not successful.

Maximum number of subscriptions is exceeded. Refer to the value Gc_uiMaxNumberOfSubTotal.

Maximum number of publications is exceeded. Refer to the value Gc_uiMaxNumberOfQoS1PubPerClient.

The TCP operation to send a message to the server was not completed successfully.

The TCP operation to receive a message from the server was not completed successfully.

The processing buffer size is too small. Refer to the value Gc_uiMaxSizeOfDataToExchange.

Invalid reference to FB_MqttClient instance.

The specified pointer to the buffer is invalid. It cannot be a null reference.

Maximum number of not processed messages is exceeded. Refer to the value Gc_uiMaxNumberOfQoS1MessagesPerSub.

The message received from the server is not supported.

The connection to the server was interrupted.

A timeout has elapsed during execution.

An internal error is detected.