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Semaphore has released two technical documents with information on RTU applications of the Simple Network Management Protocol (SNMP) in Scada systems, and IP forwarding using an RTU.

A white paper, SNMP – A New Paradigm for Scada, describes how SNMP is applied to asset management and transportation of ‘shadow data’, information on equipment maintenance and security within the Scada system.

Since SNMP has emerged as a very efficient vehicle for transportation of this information, it is feasible for addition to existing systems.

The white paper includes descriptions of smart function blocks, which significantly reduce programming efforts when used with Semaphore’s T-Box RTU and Kingfisher RTU product lines.

The application brief, IP Forwarding in Semaphore’s T-Box RTU, explains how to configure the IP ‘gateway’ capabilities in a T-Box RTU to allow support of configuration and diagnostics in remote site equipment, as well as communications of process information.

The T-Box RTU is an IP-based telemetry system that allows the complete integration of Scada, control, and communications functionality in one rugged package.

It harnesses easy-to-use web technologies and inexpensive public networks for decentralised monitoring and control systems.

T-Box products offer up to 50 per cent less total installed cost per point compared with traditional Scada/PLC systems, and permit greater organisational access to data through automated reporting and browser software.

The Kingfisher RTU line provides many advanced features for Scada systems, including redundant configurations, intelligent I/O and open programming that is compliant with IEC 61131-3.

Kingfisher is also compliant with IEC 61499, the distributed processing and interoperability extension to IEC 61131-3.

Kingfisher systems are well-suited to large, demanding measurement and control applications that employ central stations.

Semaphore’s T-Box and Kingfisher RTU products are suitable for a broad range of monitoring and control applications in the broadcast/telecom, infrastructure management, oil and gas, power, transportation and water/wastewater industries.

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