Product Guide
NetTEST II
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Using the COMSOFT NetTEST II analysis and test tool a PROFIBUS DP segment can be systematically tested. Most frequent errors such as installation errors, short circuits, line or shielding breakages can be detected and resolved prior to actual operation regardless of whether the DP Slaves are connected, disconnected, powered-on or powered-off.
All results are filed in a detailed test record. Up to 20 detailed test records can be filed and printed on a standard PC without any additional software.
NetTEST II is operated via a keyboard (24-keys) and a full-graphical LCD display (128 x 64 pixels) with background illumination. Connection to the PC or the notebook is realised with the supplied cable via COM interface.
With the new 2008 version, it is possible to set different sensitivity levels, even in the millivolt range. So, smallest reflections i.e. resulting from a multiple grounded shield can be detected. If no errors are displayed with the highest sensitivity level the installation regarding shielding or strand interruptions is of highest quality.
Furthermore we added a checksum to our measurement protocol. This checksum makes it possible to check the measurement protocol for manipulations. Another new feature is the additional mandatory measurement without terminating resistors from the opposite end of the cable during the generation of the measurement protocol. So, shielding or strand interruptions can be detected securely on the very end of the cable.
Online Functionality
NetTEST II can be used on a running PROFIBUS system. In this case, NetTEST II works in a completely passive monitoring mode and performs a detailed analysis of the data traffic as well as the physical state of the PROFIBUS line.
NetTEST II comes with the following Online functionalities: Live List, measurement of the signal quality of each DP Slave, rotation time of the whole DP network, analysis of data traffic between DP Master and DP Slave, triggering upon communication status changes.
DP Mono Master Functionality
NetTEST II is an outstanding tool for mobile commissioning of DP Slaves. The entire PROFIBUS network can be set into operation without PLC, i.e. the I/O data of the connected DP Slaves can be visualised an modified in a comfortable manner, thus allowing effective testing of the connected sensor/actor technology.
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