PLCs, DCSs & Controllers


Fishery relies on Siemens process management

December 2019 PLCs, DCSs & Controllers

The fishery in Steinach, Switzerland, breeds fish species which are under threat so that they can be released into domestic waterways in the canton of St. Gallen. The quality and temperature of the water, light, and food all have a significant role to play in breeding, not to mention the requirements to be met for each fish species. To comply with these demands, the fishery relies on modern technology to monitor the breeding tanks. At the heart of the solution is a Siemens controller. End-to-end automation also secures the operation, even in the event of a power failure, and contributes to high survival rates amongst the breeding stock.

Around two thirds of fish and crab species native to Switzerland are threatened by extinction or no longer appear in the wild. The Amt für Natur, Jagd und Fischerei (Office for Nature, Hunting and Fishing) in the canton of St. Gallen has the task of maintaining and promoting biodiversity. The fishery, which opened 12 months ago in Steinach, is making a significant contribution in this area. Approximately 100 cubic metres of water are treated every hour in the fish breeding plants in order to meet the creatures’ requirements with respect to quality, oxygen content and water temperature. This process is controlled by a Siemens Simatic S7-1500 controller with two processors, CPU (Central Processing Unit) 1515-2 PN and CPU 1511-1 PN.

Comprehensive process management

The water in the total of four tanks is drawn directly from Lake Constance and is extracted at a depth of 40 metres, then filtered, degassed and sterilised with UV radiation. Precise pressure control by the controller ensures that the pump motors are ramped up and down slowly. Were this not the case, pressure surges would occur in the pipework due to the significant difference in height when switching on and off due to the weight of the water column. This could damage the drives. It was important that the WinCC visualisation software provided extremely easy and transparent visualisation and archiving of the process during operation. A redundant Simatic CPU 1211C monitors and controls the continuous power supply and notifies fishery employees by SMS in the event of a disruption.

The end-to-end Siemens automation solution provides employees at the fishery with the necessary support to maintain biodiversity in Swiss waters. The survival rate of breeding stock in the centre remains high thanks to this reliable technology.

For more information contact Jennifer Naidoo, Siemens Digital Industries, +27 11 652 2795, jennifer.naidoo@siemens.com, www.siemens.co.za




Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Meet the Future: Edge Programmable Industrial Controllers
November 2019, Opto Africa Holdings , PLCs, DCSs & Controllers
All controls engineers are familiar with PLCs and PACs (programmable automation controllers). Both have been used and improved over many years, incorporating capabilities that used to be found only in ...

Read more...
Precise control in joining applications
October 2019, ASSTech Process Electronics + Instrumentation , PLCs, DCSs & Controllers
Digiforce is the trusted name when comprehensive monitoring of press-fit, joining, riveting and caulking processes is needed. The models 9306 and 9310 are being successfully used in innumerable applications ...

Read more...
The powerful Festo modular control system CPX-E
Technews Industry Guide: Industrial Internet of Things & Industry 4.0, Festo , PLCs, DCSs & Controllers
Designed as an EtherCAT master and motion controller with protection to IP20, the powerful automation system CPX-E for factory and process automation with NE21-specific certifications is becoming the ...

Read more...
Rockwell strengthens industrial control system security
July 2019, Rockwell Automation , PLCs, DCSs & Controllers
Communications between industrial control devices have minimal protection today. This leaves them vulnerable to threats like malicious tampering and incidental system changes that can stop production ...

Read more...
Siemens extends the Simine ­portfolio
June 2019, Siemens Digital Industries , PLCs, DCSs & Controllers
Siemens has extended the Simine portfolio for high-pressure grinding mills (HPGR) to include a new controller. Plug-and-play functionality makes the load share controller available for immediate use. ...

Read more...
Schneider Electric announces a new era of control
June 2019, Schneider Electric South Africa , PLCs, DCSs & Controllers
Schneider Electric’s new high-end Modicon M580 Ethernet programmable automation controller (ePAC) features redundant processors, native Ethernet, and cybersecurity embedded into its core. It combines ...

Read more...
Selecting the right PLC
June 2019, AC/DC Dynamics , PLCs, DCSs & Controllers
Automation projects, big or small, start with a specification. Here are five factors to consider when choosing a PLC vendor.       Broad range of devices The selected brand must have a complete product ...

Read more...
Industrial automation equipment
Africa Automation Fair 2019 Preview, Anytech , PLCs, DCSs & Controllers
Anytech is an industrial automation equipment supplier that has been providing high tech solutions to a wide variety of customers in various industries throughout southern Africa since 1999. High tech ...

Read more...
Multi-function PLC, HMI and I/O in a single 7” unit
Africa Automation Fair 2019 Preview, Vision Automation , PLCs, DCSs & Controllers
This multi-function UniStream PLC with an integrated, high-quality HMI touchscreen is available in a range of built-in I/O configurations. Showcased at Stand C04, the highly compact hardware profile with ...

Read more...
PLCs and HMIs
Africa Automation Fair 2019 Preview, Ana-Digi Systems , PLCs, DCSs & Controllers
Among the new state-of-the-art products on show at Stand E07 are Ana-Digi’s PLC range, which offers down to 8,5nS processing speeds and caters for systems up to 132 000 I/O, with full redundancy in processing ...

Read more...