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User Guide
Chapter 3
GFK-3019G
Oct 2019
EGD Machine Adapter
11
Note:
The port in the Field Agent firewall will need to be opened to enable the EGD Machine Adapter to hear
the EGD exchanges. Refer to the section “How to Open Ports on a Field Agent” in the Fiel
d Agents
User Guide, GFK-2993, to learn how to open ports in the Field Agent firewall.
machinegateway.ini
1.
Open the file machinegateway.ini file in <Predix Machine Application
Template>/machine/bin/vms for editing.
2.
Add the following block of code under the <section> element with
<name>Section_7_Start</name>:
<bundle>
<name>com.ge.ac.machineadapter-egd-1.0.0.jar</name>
</bundle>
3.
Save and close machinegateway.ini.
Note:
If the Field Agent does not support dynamic binding, copy ProducedData-Px.x.x.x.xml (where x is any
integer number between 0 and 255) into the <Configuration Template>/configuration/machine
directory.
3.4.2
Field Agent Configuration Tool
Currently the Field Agent Configuration Tool does not support configurations for the EGD
machine adapter. For more updated information on the Field Agent Configuration Tool,
please visit:
https://www.emerson.com/Industrial-Automation-Controls/support
3.5
Performance
EGD data throughput to Time Series Database (TSDB) is dependent on the number of EGD
exchanges processed, as well as network bandwidth of both EGD and cloud networks. Each
EGD exchange results in one subscription message forwarded to TSDB: the MFA can send
one subscription message per second, and the VFA is capable of sending about four
subscription messages per second.
To maximize data throughput to the cloud given these limits, it is best to fully populate each
EGD exchange with data. The chart below illustrates the maximum number of 4-byte REAL
variables that can be published to TSDB by the EGD Machine Adapter.