NetTEST II is an essential must-have analysis and test tool for the successful operation, maintenance and service of any PROFIBUS DP network. Already the basic system for detecting installation errors sets a new standard in the field of analysis and test tools. With the DP Master functionality NetTEST II becomes an outstanding tool for the mobile commissioning of DP Slaves. The entire PROFIBUS network can be lined up without using a PLC. Equipped with the online functionality NetTEST II also detects sporadic errors in running systems. The automatic generation and filing of detailed test records fulfils all requirements of state-of-the-art quality management systems.