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communication method input / output scanner for use with a programmable logic controller (plc) network and e s scanner
communication method input / output scanner for use with a programmable logic controller (plc) network and e s scanner
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机译:通信方法输入/输出扫描仪,用于可编程逻辑控制器(plc)网络和e s扫描仪
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摘要
A communication method for use by an input/output (I/O) scanner coupled to a programmable logic controller (PLC) includes coupling at least one I/O module to a backplane, and coupling a maintenance module to the backplane. The communication method also includes selectively enabling and disabling communication between the backplane and the at least one I/O module by actuating a switch in the maintenance module such that network communication is maintained by a network interface regardless of whether communication between the backplane and the at least one I/O module is enabled.
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