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The international forum for control engineers, system integrators, and industrial automation professionals.

Modbus software for testing RTU/ASCII slaves

MatrikonOPC has over 500 OPC Servers and Products for most protocols and APIs on the market. Each OPC Server from MatrikonOPC has built-in OPC Security and Redundancy. Free downloads are available. MatrikonOPC is the world

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Low-cost World-Class-Lab Certified RS232 RS485 RS422 TTL USB Serial Fiber Optic Converters. FREE or EXPRESS Shipping, 30Day Return/5Yr Warranty.

Steven Engineering is among the largest distributors of electronics & industrial automation components and electric parts, offering over 130,000 product types from AMP and many other leading manufacturers.

Allen-Bradley products from Rockwell Automation include integrated control and information platforms, intelligent motor control and industrial components.

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News, tutorials, applications, and research on control, instrumentation and automation systems for electrical, mechanical and chemical engineers. Coverage includes discrete control, information control, process control, and system integration.