描述
小的有数据监视器，可监视数据；大的还可能有图形监视器，可通过画面监视数据。除了不能改变PLC的用户程序，编程器能做的它都能做，是使用PLC很好的界面。性能好的PLC，这种外部设备已越来越丰富。
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Motorola Symbol Bar Code Reader LS4208-SWZR0100AR
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NEW Motorola Symbol LS9208i Bar Code Reader
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NEW Motorola Symbol LS4208 Handheld Bar Code Reader – B
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Motorola Symbol LS 4208 Handheld Bar Code Reader
SYMBOL MOTOROLA LS4208-SBZU0300ZR Kit: USB Power +, 7ft
SYMBOL MOTOROLA RD5000-MOUNTKT-US MOUNTING KIT: RD5000
NEW Motorola Symbol LS3008 Bar Code Reader
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Motorola/symbol 2a Ls4208-pr20007zzr Ls4208 Scnr
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