Siemens SINUMERIK 840D sl Function Manual

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Detailed description2.5 Service display PROFIBUS DP 840DiBasic logic functions: Diagnostic tools (D1)34 Function Manual, 11/2006, 6FC5397-0BP10-2BA02.5 Service display PROFIBUS DP 840DiThe user interface 840Di StartUp provides diagnostic screen forms for PROFIBUS DP andits nodes. . These diagnostic screens are only intended for information. You cannot modifythem.The following detailed information is displayed:• PROFIBUS configuration• Information on the slaves regarding their assignment to PLC/NC• Detailed information on the slaves and the corresponding slots• Information on the axes.To obtain a quick overview, the current states of certain functions are represented bycolored lamps. The following general conventions are used for the meaning of the individualcolors:• Green: Function is OK.• Red: Failure or no communication at the moment• Gray: Function is not available for the present communication.Diagnostic screen PROFIBUS DP ConfigurationThe diagnostic screen PROFIBUS Configuration provides general information on PROFIBUSDP.The following parameters are displayed:Table 2-1 Diagnostic screen PROFIBUS ConfigurationFunction/subfunction Explanation/meaningBus configurationBaud rate in MBd Data transfer rateCycle time in msec Configured bus cycle time; also defines the position controller cycleSynchronous portion(TDX) in msecConfigured time for cyclic data exchange within a PROFIBUS DP cycleStatusConfiguration OK. Status of configuration• Green lamp: DP master has powered up.• Red lamp: Failure or no communication.Bus status Current bus status is displayed in this field. Each bus status is explained in the screen form inbrief. Possible states are:• POWER_ON• OFFLINE• CLEAR• OPERATE• ERROR