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This section was added in release 4.0.18 Previously - previously configuration for the Auto-reconnect RPC Client property was under the Advanced section  

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section 

This section was updated in 4.0.23 to move the Enable/disable RPC Client

• Enable or disable the RPC MQTT Client 

• The RPC MQTT Client is used for MQTT publishing from Transmission using Ignition Python scripts

and Auto-reconnect RPC Client

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to the

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Sets configuration

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• RPC Client ID
  • A manually configured MQTT Client ID for this RPC connection
  • Do not use this setting unless it is an absolute requirement that a specific Client ID be used for the connection to the MQTT Server. If left blank, one will be auto-generated. 
• Username
  • Optional username for this RPC connection if required by the MQTT Server
• Password
  • Optional password for this RPC connection if required by the MQTT Server
• CA Certification File
  • CA Certificate file currently in use
• Client Certificate File
  • Client certificate file currently in use
• Client Private Key File
  • Client private key file currently in use
• Password
  • Optional password associated with the certificates private key
• Hostname Verification
  • Enable hostname verification. Enabled by default
• TLS ALPN Extensions
  • Optional TLS ALPN Extensions to use with this connection

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The Sets tab contains a list of server sets.  Each set represents a logical grouping of MQTT servers.  When a set is referenced by a Transmitter configuration, a single connection to one of the servers in the set will be maintained. The other servers will act as failover in the case that a connection with the first is lost.  Server sets cannot have common elements meaning that a single MQTT server cannot be in more than one set.

The Sets tab contains a single Main section and Advanced sections.

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SetsMain SetsMain

Sets - Main

• Name
  • This is the friendly name of the set used to easily identify it.
• Description
  • This is a friendly description of the set.
    

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  PrimaryHost PrimaryHost

  Primary Host ID
  
  • The primary host ID to use for 'state' notifications.
  • If configured, MQTT Transmission will subscribe on 'state' notification topics. If MQTT Transmission is notified that the primary backend application has gone 'offline', it will close it's client connection with the MQTT server and walk to the next MQTT server defined in the set.  If the primary host ID is not set, MQTT Transmission will not subscribe on the notification topics and not receive any 'state' notifications.
  • This must contain only letters, numbers, or any of the following special characters: . $ % @ ! - _ ^ *

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SetsAdvanced SetsAdvanced

Sets - Advanced

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• Enable/disable RPC Client
  • Enable or disable the RPC MQTT Client 

  • The RPC MQTT Client is used for MQTT publishing from Transmission using Ignition Python scripts

• Auto-reconnect RPC Client
  • If checked, the RPC client will automatically reconnect to the server.
  • If unchecked, the RPC client will try to connect at publish time

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Transmitters Transmitters

Transmitters

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