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• Client ID

  • Optional MQTT client ID to use.  If specified this will be used in the MQTT Transmission connect packet when connecting to the server.  If left blank, a random client ID will be create of the form 'MT-xxxxxxxx-xxxx-xxxx'.

    Warning
    Caution: MQTT Clients IDs must be unique and if two clients attempt to connect with the same client ID, one will be forcefully disconnected from the server to allow the other client to connect.

    
    

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  Keep Alive Keep Alive

  Keep Alive
  • The maximum interval in seconds (5-65,535) between any two MQTT protocol control packets sent by the client to the server.
  • The minimum Keep Alive for MQTT Transmission is 5.
  • If the client is idle and has no control packets to send, it will send PINGREQ protocol packet and the server is required to respond with a PINGRESP packet. If no response is received from the server within 1.5 times the Keep Alive, the client will close the connection.

  • If the server does not receive, at minimum, a PINGREQ message from a client within 1.5 times the Keep Alive, it will terminate the connection and send the client's LWT if it has been defined.

  • For MQTT Transmission, this is an DEATH message.

• Random Startup Delay
  • The Random Startup Delay in milliseconds of the form 'min-max' where min is the low end and max is the high end of the random range. e.g. '10-1000'. 
• Reconnect Delay
  • The clients reconnect delay in millisecond.
• Subscribe to Legacy STATE Topic
  
  • Allow the Transmission Client to subscribe to a legacy state topic (eg. STATE/IamHost) for primary host ID notifications (available from release 4.0.16)
  • Review Changes to the STATE messages in the Sparkplug v3.0.0 Specification
• Data Format Type
  • The format of the data to send. Default is Sparkplug_B_v1_0_Protobuf with JSON as an option.

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ServerSettingsRPCClient ServerSettingsRPCClient

Server Settings - RPC Client Connection

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TransmittersAlarmSettings TransmittersAlarmSettings

Transmitters - Alarm Settings

• Alarm Event Enable

  • When enabled and alarms are enabled on tags, the contents of the triggered alarms will be transmitted via Sparkplug to MQTT Engine and will be inserted into the Ignition Alarm Journal on the server where MQTT Engine is installed.

    Note
    This is not full alarm support as the ability to clear or ack an alarm from MQTT Engine is not currently supported

    
    

    Warning
    To use this feature you must add a line similar to the following to the data/ignition.conf file but replace the 'XX' with the proper index per the wrapper.java.additional statements: wrapper.java.additional.XX=--add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED

    
    

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TransmittersSparkplugSettings TransmittersSparkplugSettings

Transmitters - Sparkplug Settings

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TransmittersAdvancedSettings TransmittersAdvancedSettings

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• Filtered Properties
  • A semicolon delimited list of Tag properties to filter/block from being published

  • By default the filtered properties list contains: 

    Code Block

    accessRights;clampMode;deadband;deadbandMode;formatString;historicalDeadband;historicalDeadbandMode;historicalDeadbandStyle;historyEnabled;historyMaxAge;historyMaxAgeUnits;historyProvider;historySampleRate;historySampleRateUnits;historyTagGroup;historyTimeDeadband;historyTimeDeadbandUnits;opcItemPath;opcServer;permissionModel;rawHigh;rawLow;sampleMode;scaleFactor;scaleMode;scaledHigh;scaledLow;tagGroup;valueSource;expression;expressionType;ConfiguredTagPath;eventScripts;readPermissions;writePermissions;eventScripts;parentEnabled;sourceTagPath

    
    

  • Tag properties are only published if different from the default Ignition tag property settings and are only published in BIRTH messages.
• Rebirth Debounce Delay
  • The amount of time, in milliseconds, to delay before processing Rebirth NCMD requests after one has been processed. Default of 5000 milliseconds.
• Include Sparkplug DataTypes
  • Whether or not to include Sparkplug DataTypes for Metrics in Sparkplug DATA payloads
  • Enabled by default

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Records Records

Records

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RecordsRecordsSignature RecordsRecordsSignature

Records - Records Signature

• Enable Signature
  • Checkbox to enable a digital signature field on all Records. Default is de-selected
• Algorithm
  • The hashing algorithm to use when generating the digital signature
  • Options are SHA_1,SHA_224,SHA_256,SHA_384 and SHA_512
• Password
  
  • The password used to generate the PBE secret key for encrypting the digital signature 

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The History tab contains a Main section and an Advanced section.

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HistoryMain HistoryMain

History - Main

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• Name
  • The name of the History Store.
• Enabled
  
  • Checkbox to enable/disable the History Store. Not selected by default.
• Type
  • The type of History Store.
  • Data stored in an In-Memory History Store will not be persisted across a module configuration change, module disable/enable, module restart or power loss. 
  • Data stored in a Disk-Backed History Store will persist across a module configuration change, module disable/enable, module restart or power loss.History Store will persist across a module configuration change, module disable/enable, module restart or power loss.
• History Max Size
  • Maximum number of megabytes history can use before dropping the data
  • An In-Memory History store will use the Ignition Java Heap memory
• History Max Age
  
  • Maximum number of minutes to store history before dropping the data.
• Flush Quantity
  • The maximum number of tags to publish in a single message upon reestablishing communication.
• Flush Period
  • The period to wait in milliseconds between publishes when flushing messages upon reestablishing re-establishing communication

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HistoryAdvanced HistoryAdvanced

History - Advanced

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Rolling History Settings

• Enable Rolling History Buffer
  • Enable/disable storing data in a rolling buffer to cover data loss in Keep Alive timeout scenario
• Rolling History Prune Interval
  • The interval, in seconds at which to attempt to prune the rolling history buffer
• Rolling History Max Age
  • The maximum age allowed of data, in seconds, in the rolling history buffer
  • This should be at least 2 x the Keep Alive timeout
• Rolling History Prune Quantity
  • The number of metrics to prune in a single block

Advanced Settings

• H2 Database Port
  • TCP Port to connect to H2 Database for Disk-Backed History Store