4
Table of contents
10.4 Backdoor password................................................................................................................144
Section 11 Modbus Protocol.........................................................................................................145
11.1 Introduction.............................................................................................................................145
11.1.1 Modbus..........................................................................................................................145
11.1.2 Modbus/TCP..................................................................................................................145
11.2 Modbus/TCP driver ................................................................................................................146
11.2.1 Modbus protocol............................................................................................................146
11.2.2 TCP/IP interface............................................................................................................147
11.2.3 Data model....................................................................................................................148
11.3 Data encoding ........................................................................................................................149
11.3.1 Data dictionary...............................................................................................................152
Section 12 Maintenance and Troubleshooting.........................................................................165
12.1 Maintenance...........................................................................................................................165
12.1.1 UV Detect technology....................................................................................................165
12.1.2 Lamp replacement procedure........................................................................................166
12.1.3 Self clean mode.............................................................................................................170
12.2 Water filter replacement .........................................................................................................171
12.3 Troubleshooting......................................................................................................................172
12.3.1 Fuse replacement..........................................................................................................172
12.3.2 Technical support..........................................................................................................173
12.3.3 Return procedures.........................................................................................................174
12.3.4 Draining the analyzer.....................................................................................................174
Section 13 Specifications..............................................................................................................177
Section 14 CE Conformance.........................................................................................................179
Section 15 Theory of Operation...................................................................................................181
Section 16 PAT700 Default Settings............................................................................................183