In this diagram, we have illustrated our recommendations as to how we suggest you configure your data feed into your pre-existing process control system.
Walking left-to-right through the diagram above, we’d like to highlight the following points:
|AEMO||Data feeds||The AEMO supplies electricity market data for the NEM using two different methods. The deSide updaters are designed to utilise both methods for added redundancy:
1) AEMO’s MarketNet is the secure environment on which the AEMO operates the NEM. For this reason, significant attention is focused on keeping this highly reliable. Your deSide updater leverages data from MarketNet.
2) The AEMO is required, under the rules, to publish information in the public domain – which they do via NEMweb. This service does not need to be as reliable as MarketNet, so it does tend to fall over from time to time.
|Three redundant data feeds||We have built into the deSide service three parallel flow paths for the data updates through the internet for a high level of redundancy.
These parallel flow paths use different infrastructure, and different technology providers.
|Your Business Network||Two deSide updaters supplied||In your standard deSide package you will have been supplied with two copies of the deSide updater. Each is designed to operate independently (perhaps even in different locations within your organisation) to deliver a secure data feed to two different deSide databases.|
|Two deSide databases||Each deSide database will sit on top of Microsoft SQL Server (or SQL Express, for those clients without a full licence to SQL Server).|
|Data feed into process control||Your install guide for the deSide updater provides you instructions for how you can take the “current price” data from the deSide database and feed it through into your process control system.
Doing this enables your “Production Operators” to view the current electricity price in the same context as how they view any other critical data relevant to the process they are controlling.