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15-8
Equipment Manual OP7, OP17
Release 04/99
15.6
Testing Communication via the PROFIBUS-DP
Mounted on the rear side of unit variants DP and DP-12 is a bus fault LED
(figure 15-2). When the OP is connected to SIMATIC S7, this LED indicates
that communication between the OP and the PLC over PROFIBUS-DP is OK
by lighting up constantly. If the LED is constantly OFF, communication is
disturbed.
The LED can be used for rapid diagnosis of any problems that might occur
during communication.
Figure 15-2 Location of the Bus Fault LED at the Rear of the OP
Bus fault LED
Содержание OP17
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Страница 13: ...Product Description 1 Functionality 2 Part I Introduction ...
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Страница 111: ...Installation 14 Commissioning 15 Device Description 16 Part IV Commissioning and Description of Devices ...
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