CNC/PC network connectivity

Turning and machining centers can now use FlexLink Ethernet connectivity from Hitachi Seiki (Itasca, IL) for its line of Seicos Sigma controls. It features software and a Universal User Port (UUP) Ethernet connection that provides bidirectional communication between the CNC machine and an external PC device or PC network.

The new design uses a standard RJ45 Ethernet connection so customers have options as to the external PC device that can be connected to the machine. Linking to a local-office PC network is the most likely application. However, it is possible to use Hitachi Seiki FlexLink technology to connect with a hand-held personal digital assistant (PDA) or a laptop computer or for use over the Internet for remote monitoring and management.

The open CNC architecture is said to be more reliable than competing designs because proven CNC controls manage the machines, while the open architecture provides real-time management information about the machine and its production. This avoids instability that might be inherent in PC-fused linkages or links dependent upon PC operating systems.

Before production, Seiki FlexLink technology provides job scheduling and production control. It can access tooling and Fixturing databases, verify CAD/CAM, or order required tools. Interactive connectivity can also provide for remote auto tuning for high-speed machining.

During production, the system provides remote diagnostics and operation. Real-time monitoring of position, programs, and displays is possible from any terminal. Event calls can be made by e-mail, and SPC data can be efficiently gathered, while remote monitoring at the management and supervisory level is available.

The system provides data for productivity analysis along with a permanent record of all machine data before, during, and after the job.


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