Here the PROFIBUS-DP along with the programmer (address 0), the busmaster (address 1) and the fields for the slaves (bus slaves with addresses 2 to 125) are displayed in the upper half of the window. In the example in figure 4-6, the slave at address 2 reports an error and address field 2 has a red background. If the bus slave is clicked on, the corresponding diagnostic message is received in the text window: "Bus station can not be reached." In the example in figure 4-7, the slave at address 2 reports an error and address field 2 has a yellow background. The message shows an equipmentrelated diagnosis: "Low voltage UQ1" and "UQ2 not existing".
Diagnosis with WinDP
Diagnosis with WinDP and the diagnostic display on the bus module can provide information on errors if the LEDs UL/DIA on the bus module do not illuminate continuously or one of the UQ1 or UQ2 LEDs is lit or if there is a message on the status display of the busmaster. To use the diagnosis in WinDP click on the menu option "View, Diagnostic". Detailed error and diagnostic messages from the busmaster and slaves are logged in the diagnosis output.
Bus module diagnostic display
After the error has been corrected and after the correct master parameter set is loaded into the busmaster, the diagnosis should display an errorfree PROFIBUS-DP. If you click a module using the right mouse button in the bus slave window in WinDP, the Module data window opens and the module's configuration data is displayed.The LEDs on the front panel of the bus module show the messages of the following table. The diagnostic display works independently of the mode switch's settings in section 2.3
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