Softing PROFIBUS Tester 4 BC-600-PB, Руководство пользователя

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BC-600-PB Display and Control in Stand-Alone Mode
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8.3.1.2 Segment status 1
Fig. 22: Live Status with segment status 1
To the right of “DP Segm.” in line 1, the display shows changes in the live list
(added and dropped bus stations). The following displays are possible:
1. The number of bus stations has not changed during the test:
•
No display of live list changes
2. One or more bus stations have been added during the test:
•
“+” display
3. One or more bus stations have been dropped during the test:
•
“-” display
4. One or more bus stations have been added and one or more dropped
during the test:
•
“+ -” display
The live list should usually not change when a PROFIBUS system is stable.
In line 2, you see the number of masters (M) and slaves (S). For the slaves,
the first figure indicates the number of slaves addressed by the master(s). If
not all slaves respond, the number of slaves that failed to respond is indicated
after a “-” sign.
Line 3 indicates the token rotation time. Note: The token rotation time does not
necessarily equal the bus cycle time.