Cisco Industrial Ethernet Brings Intelligent Networking to Manufacturing Floor

New Cisco Catalyst 2955 Series offers factories the advantages of switched networks

March 3, 2003

A key trend for manufacturing networking is the rapid growth of Ethernet deployments on the factory floor. Cisco is announcing the new Cisco Catalyst 2955 Series, a group of intelligent Ethernet switches designed to withstand the rigors of manufacturing environments while providing intelligent features that meet the data control, availability and security requirements of factory production.

The Cisco Catalyst 2955 Series provides wire-speed Fast Ethernet and Gigabit Ethernet connectivity coupled with advanced intelligent switching features--including security, availability, and quality-of-service (QoS). This new line of products will help many leading companies in the automotive, food and beverage, consumer products and other markets migrate their factory networks from traditional proprietary machinery communications systems to Ethernet-based networks.

Historically, Ethernet had not been considered an alternative to proprietary protocols for manufacturing automation. But with the introduction of fully switched control networks and intelligent Ethernet features, Ethernet based solutions deliver the high reliability, security, and determinism that are required for factory floor deployments.

"This rapid adoption of industrial Ethernet devices reflects an industry quickly transitioning from proprietary, multiple-network environments on the factory floor to a single, standards-based Ethernet network," said Kathy Hill, vice president and general manager for Cisco's Desktop Switching Business Unit. "By deploying the Cisco Catalyst 2955, manufacturers receive not only the interoperability benefits of a standards-based solution, but also the ability to improve productivity by extending Catalyst intelligent switching services company-wide."

Designed to withstand harsh environments, the Catalyst 2955 Series features industrial grade components, a compact size, convection cooling and dual relay output signaling. It is rated to operate at extreme temperatures, and designed to withstand extreme vibration and shock environments. Its compact size and DIN rail mounting allow it to easily fit into industrial enclosures and control cabinets.

As part of the Cisco's Catalyst Switch family, the Catalyst 2955 Series delivers consistent end-to-end multi-layer intelligent switching functionality with Cisco's comprehensive range of enterprise switching platforms. The product also features Cisco's network operating system, Cisco IOS®, for easy end-to-end deployment with other Cisco solutions and for extending intelligent switching services from the input/output or monitoring device to the core network and through the WAN. Cisco's embedded Cluster Management Suite software for larger deployments can manage the Catalyst 2955 Series switches. The Catalyst 2955 Series also supports Simple Network Management Protocol (SNMP)-based network management platforms, such as CiscoWorks.

The Advantages of Industrial Ethernet to Manufacturers

Widely Adopted Standard: Ethernet is the most widely recognized networking technology today. Based on open standards and is ubiquitous in corporate networks. It provides multiple interoperable options in terms of cost and reach, large economies of scale, an ample knowledge base, and a varied set of management tools.

Bandwidth: Ethernet offers data speeds of 10, 100, or 1000 Megabits Per Second (Mbps) compared to proprietary systems, which typically peak at several hundred kilobits per second. This substantial increase in bandwidth allows manufacturers to run new applications over their factory floor network (including video monitoring and voice, and high-bandwidth data exchange with the factory devices) over a single network infrastructure, reducing cost all over the enterprise.

Convergence: By using a single underlying standard, manufacturers are free of the complexity of making several proprietary networks work together (there are presently more than twenty different networking protocols for manufacturing automation systems). In addition, an Ethernet control network can exchange information seamlessly with an organization's ERP and MES systems, extending the exchange of real-time information to the factory floor device.

IP Connectivity: Most of the Ethernet solutions in the market (Ethernet/IP, Modbus TCP, HSE, EGD, etc.) not only provide a common set of tools for physical connectivity but also rely on TCP/IP for logical addressing. This essentially provides infinite connectivity through the World Wide Web. With an adequate set of security tools, Industrial Ethernet can now potentially have visibility and management of any device from any location.

Network Management: It is much easier to manage an Ethernet-based switched network than a multiple-protocol infrastructure. For example, there are industry-standard management tools available in Ethernet environments, including Cisco Cluster Management (CMS) and SNMP-based tools such as CiscoWorks. In addition, an intelligent switch that provides IGMP snooping and QoS, will also deliver port mirroring, which allows the user to easily monitor traffic, no matter where the traffic analyzer is installed in the network.

Determinism: Intelligent switches with Industrial Ethernet offer Quality of Service (QoS) features that make it possible to prioritize critical traffic so that it will not be dropped due to congestion. By implementing simple and adequate QoS parameters in an intelligent switch, critical traffic can be prioritized over non-critical traffic at wire speed, ensuring packet integrity for the control networks.

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