Overview
Gas Analysis Writes are performed using a Write Request Framework; a core component of ACM that allows Gas Chromatograph write requests to be sent to end devices.
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- Gas Analysis Write File Service: This service allows requests to be created from a delimited file controlled by the user. Files are managed in a configurable location on a set interval.
- FLOWCAL SCADA Request Service: This service allows requests to be created automatically by monitoring the FLOWCAL SCADA Request table. This table is named FC_SCADA_REQUEST.
- ACM GMS Parser Service for GC Download: This service allows requests to be created by importing an XML file with a specific format.
Resolving Meters
Each request contains a GCIdentifier that must match a Meter object in ACM before it can be created. Requests will fail to be created if they cannot be resolved using at least one of the following methods:
The External GC Reference (Meter Tab) matches the GCIdentifier
The External Meter Reference (Meter Tab) matches the GCIdentifier
The Meter Name (General Tab) matches the GCIdentifier
Life-Cycle of A Request
A Write Request will go through the following stages during its life-cycle:
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