ECU
Test Specialists
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ECU
Test Specialists
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The Challenge Develop an End-of-Line Test System for two physically different clock modules. The modules arrive at the test station in any sequence and must be tested based on part number. The Solution A low cost industrial PC coupled to off-the-shelf industrial I/O provided a system that was quick to produce and is proving reliable in use. Machine vision indicates a pass-fail result from the clock module's display. A custom fixture adjusts to the clock module under test based on a switch setting that is verified by a bar code scan. Hardware A passive back plane Kontron industrial PC with Measurement Systems I/O cards driving Grayhill solid state relay racks and Analog Devices analog I/O modules add up to a reliable system that the customer can easily understand and maintain. Machine vision is provided by a Keyence vision system. Software The straight forward test sequencer is written in C and runs under embedded DOS. This combination is proving to provide high reliability in a challenging non-US environment. Similar machines developed for more complex products are based on Windows 2000, Visual Basic and PC based machine vision. |
Copyright © 2004
PTM Electronics
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