control of a system of three circulating pumps, two storage tanks

[Tarekamkhalil]

Ladies and Gentlemen

We need a control of a system of three circulating pumps, two storage tanks. Temperature, pressure and flow rate should be measured in a good simple data acquisition system

Could you please help in providing a solution

Best regards

Dr. rer. nat. Tarek Khalil (Dipl. Phys.)

Physics/Engineering & Materials Science

German University in Cairo - C3.114   

11835  New Cairo City, Egypt

http://www.guc.edu.eg/en/research/PVTRESyst.aspx , www.guc.edu.eg

Tel:    +202     27595592 (Ext. 3652)

Fax:    +202     27581041 

Mobile: +2       0100 39 14 511   

[AndyClegg]

Looks like you have a good schematic, hopefully you understand the intended operation in detail.

1. Collate/define all of the sensors you need to interface to - for both control and monitoring. Signal types.
2. Collate/define all of the actuators - pump types (on-off or variable speed), valve - and drive signal requirements. It may be some of the devices will need extra external equipment (relays, amplifiers).
3. This will allow you to define the IO you need and select your control hardware - PLC or NI hardware that can provide this IO and some control - you probably don't need anything high performance. But as part of electrical design you will need to do a final check (impedances, ranges, etc)
4. Define software functioanlity - user interface, control functions (noting your blocks are taking several signals - so not just a basic PID), data logging, fault handling, operating logic you want to automate (e.. start-up, swicthing between different modes).
5. Implement software - given your hear probably in Labview, but exact type of LabvIEW will depend on what hardware you use, and also what you want to develop in and support
6. Test - basic IO connectivity first, control/operatig logic and fault handling

Hope this helps,