Siemens GS..D.. Bedienungsanleitung PDF herunterladen (Seite 30)

How to configure an Anybus PROFIBUS Slave module with a Siemens Step7 PLC

SCM-7032-026

Rev 2.1

Test 1:

Figure 35 Test procedure 1.

x=110ohm/km

Test 2: Same as test 1 except configuration A and configuration B are exchanged, i.e. start with

configuration B.

Test 3: Too many bus terminating resistors inserted.

Figure 36 Test procedure 3.

In order to assess the measurements you make, it is necessary to know the loop resistance of the bus cable

segment. This is dependent on the cable type used and the installed cable length. The location of a fault can

be determined without opening up the bus connectors by unplugging test connector 1 and plugging it into

another bus connector which is closer to test connector 2 while carrying out repeated Ohmmeter

measurements at test connector 2

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