Siemens SIMATIC S7-300 - Manual (Page 29)

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SIMATIC S7-300 Getting Started for First Time Users
Getting Started, 04/2007, 6ZB5310-0NC02-0BA0
3.4 Commissioning the hardware
When you commission the hardware, you establish the connections between the
CPU 312C and your PC. You supply power to the installed equipment and test
for proper wiring.
Connecting the CPU 312C and the PC
1. Connect the USB cable to the PC Adapter and your PC.
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