Siemens Simatic S7-300 Service Manual download pdf (Page 63)

SIMATIC S7-300 Getting Started for First Time Users

Getting Started, 04/2007, 6ZB5310-0NC02-0BA0

8.1 Diagnostics / correction of errors

Incorrect operation, faulty wiring, or an incorrect hardware configuration can

cause errors. The CPU 312C displays such errors with the group error LED SF

following a memory reset. For information on how to analyze errors and mes-

sages, refer to the “S7-300, CPU 31xC and CPU 31x: Installation” operating

instructions. This manual is included in the SIMATIC Manual Collection, which is

enclosed in the S7-300 starter kit.

The PC Adapter USB uses LEDs to indicate error states. To diagnose these

errors, refer to the electronic “PC Adapter USB” Manual. You can find this man-

ual on the installation CD for the PC Adapter USB.

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Siemens Simatic S7-300 Service Manual Page 63