1. Diagnostic & Troubleshooting Date 06/09/00, Page 1 Diagnostic & Troubleshooting s

2. Date 06/09/00, Page 2 Diagnostic & Troubleshooting s  Always the 1 st step - Stay out of Trouble! Installation according to PROFIBUS Installation Guideline (Document 2.112, available from PTO) Use REAL PROFIBUS cable according to the standard Choose a master with an “easy to use” configuration tool Use appropriate shielding & grounding

3. Diagnostic & Troubleshooting Date 06/09/00, Page 3 Diagnostic & Troubleshooting s  Check the Physical Setup - with the BT 200  Wire break/crisscross  Short circuit  Termination  Bus scan  Length  Reflections  RS 485 interface

4. Diagnostic & Troubleshooting Date 06/09/00, Page 4 Diagnostic & Troubleshooting s  How to use the BT 200? Connect test plug with first connector and BT200 with last connector Termination “ON” at the test plug only while testing the cable Turn the BT 200 “ON” and press the test key If everything is ok, you see the message “cabling o.k. (1R)” otherwise an error message appears Test Plug BT200 Connector Termination ON, interrupts daisy chain

5. Diagnostic & Troubleshooting Date 06/09/00, Page 5 Diagnostic & Troubleshooting s  How to use the BT 200? (continued) In case of an error - work your way “up” Test Plug BT200 Connector Termination ON, interrupts daisy chain Test Plug BT200

6. Diagnostic & Troubleshooting Date 06/09/00, Page 6 Diagnostic & Troubleshooting s  During Operation - Utilize LEDs of Devices

7. Diagnostic & Troubleshooting Date 06/09/00, Page 7 Diagnostic & Troubleshooting s  Diagnostic is built into PROFIBUS DP... 6 Bytes Mandatory Header Device Related (Optional) Identifier Related (Optional) Channel Related (Optional) Up to 244 Bytes

8. Diagnostic & Troubleshooting Date 06/09/00, Page 8 Diagnostic & Troubleshooting s  …so each Controlling Device can provide it! e.g. via flow charts in a Soft PLC... …or via a message on an HMI panel... …or via a function call in a PLC.

9. Diagnostic & Troubleshooting Date 06/09/00, Page 9 Diagnostic & Troubleshooting s  PROFIBUS Monitor  Monitors bus traffic  No bus address  No influence on performance  Live list  Trigger on events  Detailed knowledge required ! Expert Tool !

10. Diagnostic & Troubleshooting Date 06/09/00, Page 10 Diagnostic & Troubleshooting s  Diagnostic Repeater Segment 2Segment 3 Segment 1 Segment 4 ! NEW - 3 rd quarter 2001 !  Standard PROFIBUS  Automatic search for transmission rate  Repeater functionality  Works with existing components

11. Diagnostic & Troubleshooting Date 06/09/00, Page 11 Diagnostic & Troubleshooting s  Diagnostic Repeater (continued)  How does it work? Bus address assigned to diagnostic repeater Repeater determines and stores network topology Action is started by the configuration tool starts Errors determined via reflection measurements Standard PROFIBUS diagnostic used to report problems back to master ! NEW - 3 rd quarter 2001 !

12. Diagnostic & Troubleshooting Date 06/09/00, Page 12 Diagnostic & Troubleshooting s ! NEW - 3 rd quarter 2001 !  Diagnostic Repeater (continued) Segment 2Segment 3 Segment 1 Segment 4  Error detection for segments 2 and 3  9 pin sub D for PC connection, e.g. for diagnostic purposes (segment 4) How does it work?

13. Diagnostic & Troubleshooting Date 06/09/00, Page 13 Diagnostic & Troubleshooting s  Diagnostic Repeater (continued)  Wire break  Short circuit A, B or versus shield  Termination  Sporadic errors What type of errors can be detected? ! NEW - 3 rd quarter 2001 !

14. Diagnostic & Troubleshooting Date 06/09/00, Page 14 Diagnostic & Troubleshooting s  Name of the disturbed segment  Cause of disturbance  Location (between station X and Y)  Distance  Error rate (percentage) What is reported?  Diagnostic Repeater (continued) ! NEW - 3 rd quarter 2001 !

15. Diagnostic & Troubleshooting Date 06/09/00, Page 15 Diagnostic & Troubleshooting s  Diagnostic Repeater (continued) ! NEW - 3 rd quarter 2001 ! Online Diagnostic via Configuration Tool