描述
尽管用PLC实现对系统的控制可不用外部设备，配置好合适的模块就行了。然而，要对PLC编程，要监控PLC及其所控制的系统的工作状况，以及存储用户程序、打印数据等，就得使用PLC的外部设备。故一种PLC的性能如何，与这种PLC所具外部设备丰富与否，外部设备好用与否直接相关。
BALDOR MOTOR 3 PHASE 20 HP 3450 RPM ENC TEFC FRAME 256T
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BALDOR 1 HP AC GEARMOTOR 1725 RPM 200:1 DOUBLE REDUCING
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BALDOR ID15H402-E AC Drive w/ KP0022A00 **XLNT**
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NICE!!! BALDOR 20 HP MOTOR 220/440V 3 PH
Baldor DC Tachometer 601A100-2
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NEW BALDOR ID5405BO AC MOTOR ADJUSTABLE SPEED DRIVE
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SEW REDUCER / BALDOR MOTOR, 1.5 HP, KA67AM56-KS
EURO DRIVE DC MOTOR
