Hi Everyone,
I would like to clarify some of my doubts regarding the SOE, AMS, OPC and Historian.
Here are my questions:
1. Can SOE and AMS be installed in same server ? Any set back?
2. OPC resides only in application server, right? and not in Proplus.
3. For short term historian application can take care. What about long term historian? For example 2 years.
4. If the operator wants to see the trending from current to 1 year back trending, Is it possible from deltaV operator screen?
5. If customized reports need to be printed from historian, can it be done? Can Crystal report be used for reports?
Your kind reply and knowledge sharing will be appreciated.
When you say historian application in point 4, do you mean Process History View?... if so, then there shall be no problem in consulting data from 2 or more years ago as long as you have data collecting correctly configured: enough disk space available, etc...
In reply to SMAQLL:
Of course there is a limit on hard drive space that can be used for data storage on-line... I think it's 10,000 MB, but after that you can always convert stored datasets to extended datasets and keep accesing them from Process History View...
My answers are in GREEN
Yes they can run together. Limit the number of services run by the Proplus, however. If you have DVDatabase, AMS, SOE, VCAT, Terminal Server, Continuous Hist, etc. all on one server you will experience problems due to process heap exhaustion.
At one point I know the proplus could support 250 OPC tags. Not sure if that is still the case.
The Emerson Continuous Historian is basically only limited by hard drive space. I would manage your data set sizes such as to minimize the number of sets files without incurring performance loss on client access and backup frequently and/or automatically. The more datasets you have, the more you have to keep track of and restore, potentially. The converse of this is if a problem exists with one of your datasets, like corruption, more data would be impacted. If 2 years of data is larger than your drive size, consider having multiple historians share the load, but storage space is cheap and harldy worth trying to engineer around.
Yes. You can embed charts into Operate that provide this.
I assume you mean continuous.. There are three ways to access the Emerson CH.
1. DeltaV Excel Reporter
2. DeltaV OPCHDA server
3. Continuous Historian Webservices (although I think this is now grouped with the SOA Gateway feature).
The last 2 are really protocols for pulling the information into another datasource, so you could write/buy a client for these to pull the information into a SQL or other ODBC database from which Crystal could read. The excel reporter is truly a client to get the information into Excel, and Crystal can read from excel provided the data is formatted correctly.
In reply to Youssef.El-Bahtimy:
Thank you everyone for sharing knowledge, your reply is really appreciated.
My thoughts on this:
1. The Pro Plus includes a license for the Event Chronicle, and AMS is expected to be installed on the Por Plus. The SOE database is an option on the Event Chronicle. There is no issue running these together from a compatibility perspective. For small systems (< 2000 DST's), we consolidate AMS and the Event Journal on the Pro Plus Workstation. As Youssef mentions, you want to be careful running all possible applications on the same box. You can enable the Historian on the Pro Plus, and it is limited to 250 tags. If you want to run VCAT or Terminal Services, you have to run the Pro Plus on a Server Platform. All these software are tested to run together. But you should consider two things: System Performance and Availability. AMS and the Event Chronicle databases are separate from the Pro Plus engineering functions. You should consider moving these to a dedicated App Station, both for performance on the Pro Plus and for seperation of these tasks. If you have need for a limited number of concurrent Engineering sessions, you can add RDP services to your Pro Plus (server). If you want RDP Operator Stations, which run 24/7, you should dedicate an RDP server so that the pro plus is not critical to operations, allowing for easier system upgrades and maintenance.
2. An OPC server is also available at 250 tags on the Pro Plus, but can be increased to 500 OPC tags with the EXCEL ADDIN license.
3. Yes, for 2 or more years. Disk space is your limiting factor. The DeltaV Historian supports long term data storage and PHV provides the tools to quickly view data back in time. As explained in some of these other threads, you need to move active datasets to extended Data sets, and then it is simply a matter of Hard Disk space. DeltaV Continuous Historian uses compression to optimize data storage, so that large time spans can be stored with minimal disk resources. This is a major feature of DeltaV over some of our competitors. Note that if a user prefers to use PI Enterprise, DeltaV PHV can access data stored in PI, provided the PI tags match the DeltaV hitorical parameter tags.
4. Yes, and it is very easy. PHV supports command line parameters to allow it to be launched in context, and some of these deal with start and end times. PHV also provides easy scrolling in time. Data access of back in time data is very fast.
5 Youssef covered this well. The DeltaV Continous Historian comes with a single user OPCHDA server. This allows one client application at a time. If concurrent access is needed (say an Enterprise scanner and a user client application) then you will need to add OPCHDA clients to the Historian. The Excel Add in for historical data does not use the OPCHDA server, so access is allowed while the OPCHDA server is connected to a scanner.
The History Analysis Webserver allows access to both the Event CHronicle and Continuous Historian, as well as the Batch Historian (if present) to allow historical data analysys, and this also provides tools for exporting history data to Excel. This is intended primarily for data analysis, and remote access via the web service for secure connections through the enterprise firewalls.
Andre Dicaire