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When enabled, CFX and associated CFX.MD5 files will be created for each configured  configured meter and new Alarm, Event and PeriodicHistory records will be added to the file. Files

Files will be stored on the Ignition instance where the driver is installed under this file path these file paths:

For EFM Emerson ROC:

<ignition folder>/data/modules/com.cirrus-link/efmemersonroc/devices/<device id>/meters/<meter id>/

For EFM ABB Totalflow:

<ignition folder>/data/modules/com.cirrus-link/efmabbtotalflow/devices/<device id>/meters/<meter id>/

Files can be published and processed using the MQTT Transmission and MQTT Engine modules.  

Configuring the Common Exchange Format

The Common Exchange Format (CFX) is configured through either the EFM Emerson ROC Device Connection Device Connection or the EFM ABB Totalflow Device Connection configuration.

• Enable CFX
  • Enables/disables the FLOWCAL Common File Exchange. 
  • When enabled, CFX and associated CFX.MD5 files will be created with a naming convention of meterid.cfx and meter_id.cfx.md5. New Alarm, Event and PeriodicHistory records will be added to the file.
  • Files will be stored on the Ignition instance where the driver is installed under this filepath <ignition folder>/data/modules/com.cirrus-link/efmemersonroc OR efmabbtotalflow/devices/<device id>/meters/<meter id>/ 
• Flow Computer Brand
  • Free form text field to identify flow computer brand. Limit of 20 characters
• Flow Computer Model
  • Free form text field to identify flow computer model. Limit of 20 characters
• Flow Computer Software Version
  • Free form text field to identify the flow computer software version. Limit of 20 characters
• CFX Publish Time Expression
  • This parameter is used when publishing the files with MQTT Transmission and defines the Quartz Cron expression used to schedule publishing of CFX files
  • This will trigger the CFX file to be copied to the "Publish File Path" configured for the MQTT Transmission File record selected in the "CFX File Transfer" parameter. This file can then be picked up and published automatically by MQTT Transmission and the CFX file remains in the source folder (under ~/data/modules) to be maintained. 
  • Default is "0 0 0/2 * * ?".  Reference Reference the Cron Trigger Tutorial for details on this expression and Cron Expression Generator for configuring this expression  expression.  
  • This expression can be empty to use the CFX Cutoff Time Expression only
• CFX Cutoff Time Expression
  • This parameter is used when publishing the files with MQTT Transmission and defines the Quartz Cron expression used to schedule publishing of CFX files
  • This will trigger the CFX file to be moved to the "Publish File Path" configured for the MQTT Transmission File record selected in the "CFX File Transfer" parameter. This file can then be picked up and published automatically by MQTT Transmission and the EFM driver notified that it needs to collect meter configuration and generate a new set of CFX files.
  • Default is "0 0 0 L * ? *".  Reference Reference the Cron Trigger Tutorial for details on this expression and Cron Expression Generator for configuring this expression.
  • This expression should never be empty to prevent the CFX file from becoming too large to publish
• CFX File Transfer
  
  • This parameter is used when publishing CFX files with MQTT Transmission and provides a dropdown containing all the File definitions from MQTT Transmission. 
  • A MQTT Transmission File definition defines a location for all the control tags required to publish files including the "Publish File Path". 
  • Default is none. CFX files will be created and maintained but will not be published. New Alarm, Event and PeriodicHistory records will be added to the file until the device connection is removed.

Publishing the CFX files

By default, the configuration will not attempt to publish the created CFX files. They will be created and maintained, with new records added to the file, until the device connection is removed.

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