PROFIBUS Tester 4:
All-in-one tester for bus physics and bus communication 
Areas of Application
The PROFIBUS Tester 4 is a powerful tool that allows full testing of live PROFIBUS segments with minimum influence on their operation. The tool reliably detects even transient faults that occur only sporadically. Using the integrated master simulator, either the bus can even be tested if the PLC is currently not in operation, or "suspicious" bus devices can be checked individually.
On connection to a PROFIBUS DP segment, the PROFIBUS Tester 4 automatically detects the baud rate or open circuit voltage.
- Standard tests with simultaneous analysis of both bus physics and bus communication: Quick test, User-controlled test and Long-term trend.
- Special features: Master simulator and Topology scan.
- Expert tests: Frame analysis, Oscillogram analysis and Trigger input/output
The PROFIBUS Tester 4 can be connected to a PC/notebook, or run in stand-alone mode.

The PROFIBUS Diagnostics Suite allows the display and detail analysis of test results on the PC.
- BC-600-PB

The PROFIBUS Tester 4 delivers highly reliable results that make it easy to identify, locate and correct fieldbus problems. It is the first test tool that can clearly distinguish whether a problem relates to a physical fault or defect, e.g. at cables or connectors, or to a communication problem with the PLC or bus devices. The PROFIBUS Tester 4 also helps to save commissioning time. In addition, regular preventive tests on the live bus ensure continuous reliable operation and increase plant availability. Should a problem occur, the PROFIBUS Tester 4 will quickly and reliably locate it to that unplanned system downtimes an be reduced or even avoided altogether.







