Within the context of the safety notes in this documentation qualified persons are defined as persons who are authorized to commission, ground and label devices, systems and circuits in accordance with established safety practices and standards. Commissioning and operation of a device/system may only be performed by qualified personnel. The device/system may only be set up and used in conjunction with this documentation. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage. If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. Indicates that an unintended result or situation can occur if the corresponding information is not taken into account. Without a safety alert symbol, indicates that property damage can result if proper precautions are not taken. With a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken. Indicates that death or severe personal injury may result if proper precautions are not taken. Indicates that death or severe personal injury will result if proper precautions are not taken. These notices shown below are graded according to the degree of danger.
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The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property.
SIMATIC Distributed I-O System DP-ASi Link EWA 4NEB 710 6055-02b.Simantic Net NCM for Industrial Ethernet S7.
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These messages will log the events and give information on the source of the faults.īasically BF1 and BF2 (Bus Fault 1 and 2) indicate the loss of a remote IO station on Profibus or Profinet, the number indficates the CPU interface that is affected (no. The appearance of a diagnostic LED is combined with a message entry in the diagnostic buffer of the CPU, and possibly in the diagnostic buffer of the offending module or remote interface, in the case of a Profibus/Profinet error.
This could be related to a programming issue, a hardware defect or a lost communication with a remote Partner. . A diagnostic LED lights up when the CPU's OS detects an event that does not correspond to its normal operational settings.