Transcription of PLC Programming Manual Introduction - CENTROID CNC
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PLC Programming Manual Introduction - CENTROID CNC
PLC Programming Manual Page 1 PLC Programming Manual Introduction This Manual is intended for machine builders, technicians, dealers, and others who need to look under the hood of the PLC system. The PLC (Programmable Logic Controller) is the portion of the control system, which deals with accessory equipment; that is, anything installed on the machine beyond the servo motors themselves. Spindle control, coolant control, limit switches, fault signals, pushbuttons, indicator lights, etc. are all controlled through the PLC. The PLC system has two possible configurations. The first configuration consists of a hardware I/O board which provides the electrical interface to all the switches and relays (RTK3, PLCIO2, RTH2, PLC15/15, ect.), the jog panel with its keys and LEDs, and a software logic program which is executed on the CPU10 controller board ( Program). In the first configuration (see figure 1) the PLC program, which is executed on the CPU10, is contained in the file The control software sends to the CPU10 on startup.
PLC Programming Manual Page 1 PLC Programming Manual Introduction This manual is intended for machine builders, technicians, dealers, and others who need to “look
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