Applied technology Communications & networking
A communication solution for a brewery
T
o the help Plzensky Prazdroj brewery achieve greater opera- tional efficiency, Siemens
Solution Partner FMA Process Engineering advised the brewery to upgrade from a Siemens S5 control system on its kegging line to the S7 system with ProfiNet wireless communication. The kegging line uses three
automated carousels which pre- wash, wash and fill kegs 24 hours a day. Handling 1000 kegs an hour, it was imperative that the line’s new control system could keep pace with this level of production. The carousels, which have been in operation for more than 15 years, were each equipped with 12 S5-95U PLCs each com- municating to an S5 115U over a Sinec-L2 network. The original solution used slip
rings to bridge the Sinec-L2 to the carousels. While this solution
worked adequately, limited net- work throughput meant that it was not suitable for high speed data transmissions as part of a new control system. To bring both the performance
and reliability of the wireless communication network on site up to benchmark standards, FMA installed a solution using ProfiNet and an Industrial Wireless Local Area Network (IWLAN). This provides seamless connection of the ProfiNet network, controllers and I/O modules. In addition, the existing
Siemens S5 software was con- verted and re-engineered to provide the functionality required to accommodate the upgraded system; and HMIs throughout the site have been upgraded to OPs to provide enhanced opera- tor control. These changes have been crucial to give a more
efficient control system. A total of 14 existing S5 115U
and S5-95U PLCs were combined into one CPU416-3 PN/DP proces- sor. All associated I/O was rewired to ProfiNet variants of both ET200M and ET200S remote I/O. On both the pre-washer and washer carousels, the existing 12 S5-95U PLCs’ control was combined into a single ET200S CPU and the remaining stations converted to ProfiNet ET200S remote I/O devices. On the filler carousel, the exist-
ing 12 S5-95U PLCs’ control was distributed across two ET200S CPUs and the remaining stations converted to ProfiNet ET200S remote I/O devices. Daconi, a company specialis-
ing in wireless networks and technology, worked with Siemens Industry Automation & Drive Technologies to conduct a
wireless survey and determine the optimum network architecture to give the best performance using Siemens simulation tools. A wire- less survey was then performed using WiFi survey tools and imported plan drawings of the plant area. The radio coverage of each access point was measured while the optimum location to install the access points and the best antenna and antenna location for the wireless clients was established. The wireless solution was then tested in situ to verify its performance.
Siemens T: 0161 446 5975
Enter 202
Remote diagnostics help reduce crematoria costs
time and reducing the cost of service engineer call-outs. PLC control systems have been developed specifically to suit the manufacturer’s process cycle and abatement system. A simple one-button command by the operator will take the
A
crematory through its programmed cycles in a safe and predetermined manner. The PLC can continuously monitor all vital functions and provide LED system status display, along with current operating temperatures and burner status. Control systems such as these provide superior fuel and airflow control capability that allow for very cost efficient, simplified operation. The equipment supplied by M.A.C enables the two connectors, the abatement system and the SCADA software to be networked at site.
M.A.C Solutions
T: 01527 592999 www.mac-solutions.co.uk Enter 203
utomation Integration has selected M.A.C Solutions as its preferred supplier for providing control systems for cremators that can be remotely monitored
and controlled from anywhere in the UK. The installation of eWON industrial-grade Ethernet routers, 3G modems and an ENDIAN VPN server box offers secure, Internet- based remote control and diagnostics while acting as an early warning system for crematorium operators, helping to detect any impending component failures, saving
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