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There are four main types of data that the EFM Emerson ROC driver is capable of getting from an Emerson ROC device. These are:
TLPs are polled at a specified interval based on a poll rate and then made available via the OPC-UA interface. Alarms, events, and history are made available to MQTT Transmission to be published as immutable Record objects to an MQTT server. Typically these would be received by the MQTT Engine and MQTT Recorder modules running on a central Ignition Gateway and inserted into a database for later use or to be made available to other third party systems.
Module | Parameter | Definition |
---|---|---|
EFM Emerson ROC Settings | TLP Definitions (Global) | The global TLP definitions made available to the EFM Emerson ROC module. They are uploaded to the Ignition instance in the form of specifically formatted CSV files. These TLP definitions can be reference by the configurations of the individual ROC devices that they apply to. A single Ignition Gateway may contain multiple global TLP definitions files that are used to configure different device types where the actual point types & parameters of the individual TLPs may differ across the different files and device types. |
EFM Emerson ROC Settings | EFM Configuration Mappings | The configuration mapping files are used for building up EFM Configuration Records. They define which TLPs map to which fields (columns) in an EFM Configuration Record. Additionally they can provide bit and/or value mappings for the TLP values. They are uploaded to the Ignition instance in the form of specifically formatted CSV files. |
EFM Emerson ROC Settings | EFM Periodic Mappings | The periodic mapping files are used for building up EFM Periodic History Records. They define which TLPs map to which fields (columns) in an EFM Periodic History Record, the logical type of the point type table (meter, station, or input), and an archive type of the value. They are uploaded to the Ignition instance in the form of specifically formatted CSV files. |
OPC UA Device Connection | TLP Definitions | These are a subset of the global TLP definition files that apply to a specific device. |
OPC UA Device Connection | TLP Templates | TLP templates are logical groupings of TLPs. Generally TLP templates would be created so that instances of them can be used by specifying a poll group with a logical number (the 'L' parameter in a TLP). |
OPC UA Device Connection | TLP Poll Groups | Poll groups use TLP templates in conjunction with a logical number to create a specific set of TLPs to be polled at a specified poll rate. |
Review the ERD: TLP Definitions and EFM Mapping CSV formats for details on the required file formats
The Cirrus Link default TLP Definitions and EFM Mapping files can be used as a starting point for configuring the EFM Emerson ROC module.
Zip file contents:
There are six basic steps to getting all of the data available from a ROC into Ignition
At this point the ROC device should be fully configured. To view data in Ignition launch Ignition Designer and open the OPC Tag Browser as shown below.
You should see the tags being polled from the ROC device as shown below. You can use these tags as any standard OPC tags in Ignition.
To view record data which includes ROC alarms, events, and history data you must have MQTT Transmission installed on the instance with the EFM Emerson ROC driver.
In addition, the following must be set up:
At the Central Gateway:
At the Edge Gateway
The Alarm, Event, and/or History poll rates in the Emerson ROC driver device configuration must be greater than zero depending on which data you wish to collect.
Must have a Sparkplug Group ID, Edge Node ID, and Device ID specified in the device configuration that matches the Edge Node/Device that MQTT Transmission is reporting on
When all of these conditions are met, alarm, event, and/or history data will be collected, published, and stored via MQTT Recorder in the configured database.
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