giunti flender n eupex H2-DV-21-A Helical gear unit H2

Flender/Flender Gear Units/Helical gear unit H2

and equip- ment is top priority. The commercial and technical aspects of the contract explicitly stated Holcims design criteria for each phase of the upgrade program, defining what it expected of its automation partner Siemens left no stone unturned in its pursuit of truly standardized automa-tion system right down to technical specifications for all electrical, network, fiber optic, automation and software elements. The system implemented in Holcim is based on Siemens flagship automa-tion product, PCS7 (version 7. with Cemat Holcim Library as an add-on module. Cemat is Siemens-patented software specially designed to meet the process requirements in cement manufacturing. Its pre-engineered software modules and operator inter - faces are distilled from Siemens several decades of partnership with the worlds major cement manufacturers. At the field level, separate S7-4 PLC is provided for each major process department. The PLCs link to the /Os (>1,0 per production line) via com- bination of Profibus DP fieldbus, Profibus OLM (optical link module), fiber optic cable and ET 2M remote / units. Up in the control room, from where incidentally you can get fine view of the massive rotating kiln, the operator stations (HMI) for each process depart-ment, the engineering station, plus the redundant PCS7 servers are con- nected via Ethernet cable and Scalance switches. Building expertise Given the large Bulacan facility plus the demands of 2/7 operation, the plan was for the region-wide imple- mentation to proceed in stages. We started with the finish mills because that was where we had the greatest urgency in terms of downtime risks due to difficulty in sourcing out spare parts for the existing automation sys-tem, says Cajander. Rather than go the conventional route and use the services and expertise of systems integrator, Holcim decided to set up its own homegrown team to engineer and implement the project in Bulacan. In fact, all Holcim impl