DP-Diag

The values in the text boxes are updated continuously.

"detected bus-errors" text box

The "detected bus-errors" text box shows the number of detected bus errors. If bus errors have been detected, the wiring should be checked. Short bus faults usually also occur when PROFIBUS connectors are disconnected or plugged in.

"detected bus-errors/sec" text box

The "detected bus-errors/sec" text box shows the number of bus errors detected per second.

"Last detected bus error" text box

A time indicating when the last bus error occurred is entered in the "Last detected bus error" text box.

"Cycle With Repeat-Counter" text box

The "Cycle With Repeat-Counter" text box shows the number of PROFIBUS cycles in which a telegram has been repeated at least once. If telegrams have to be repeated, this indicates that the bus physics is not OK.

"Max. Repeat/ Cycle" text box

The "Max. Repeat/cycle" text box indicates the maximum number of repetitions within a cycle.

"Cycle With No Dxch-Counter" text box

The counter counts the cycles in which not all slave devices participate in the data exchange. A slave device does not participate in data exchange if its DpState is different from zero.

"max. Cycle-Distance (µs)" text box

The "max. Cycle-Distance (µs)" text box shows the largest cycle distance measured in microseconds since switching to Run mode or since the last reset.

"min. Cycle-Distance (µs)" text box

The "min. Cycle-Distance (µs)" text box indicates the smallest cycle distance measured in microseconds since switching to Run mode or the last reset performed.

"Input Calc + Copy (µs)" text box

The "Input Calc + Copy (µs)" text box is used for diagnosis of the Sync Manager and shows the time in microseconds that it takes to copy the process data objects from the PROFIBUS to the EtherCAT process image.

"max. Input Calc + Copy (µs)" text box

The "max. Input Calc + Copy (µs)" text box is used for diagnosis of the Sync Manager and displays the maximum time in microseconds measured since switching to Run mode or the last performed reset, which it took to copy the process data objects from the PROFIBUS to the EtherCAT process image.

"max. Cycle-Time (µs)" text box

The maximum DP cycle time in microseconds is displayed here. Only cycles in which all slaves are in data exchange and no repetitions occur are taken into account.

"min. Cycle-Time (µs)" text box

The minimum DP cycle time in microseconds is displayed here. Only cycles in which all slaves are in data exchange and no repetitions occur are taken into account.

"actual Cycle-Time (µs)" text box

The current DP cycle time in microseconds is displayed here. Only cycles in which all slaves are in data exchange and no repetitions occur are taken into account.

"Output-Failed-Counter" text box

The counter counts the cycles in which the DP cycle has not yet been completed and all slaves are still exchanging data and have a DpState equal to zero, but the next EtherCAT cycle (EL) has already started.

"Input-Failed-Counter" text box

"Output Calc + Copy (µs)" text box

The "Output Calc + Copy (µs)" text box is used for diagnosis of the Sync Manager and shows the time in microseconds that it takes to copy the process data objects from the EtherCAT process image to the PROFIBUS.

"max. Output Calc + Copy" text box

The "max. Output Calc + Copy" text box is used for diagnosis of the Sync Manager and displays the maximum time in microseconds measured since switching to Run mode or the last performed reset, which it took to copy the process data objects from the EtherCAT process image to the PROFIBUS.

"Output Delay (µs)" text box

"max. Output Delay (µs)" text box

"Reset" button

The "Reset" button resets some of the values displayed in the "DP-Diag" dialog.