B.2 Hydran 201Ci-C Communications Controller ........................................................................... 214
B.3 Hydran 201Ci-1 One-Channel Controller ................................................................................... 215
APPENDIX C : FUNCTIONAL BLOCK DIAGRAMS ......................................................................... 216
C.1 Hydran 201Ti Intelligent Transmitter ........................................................................................... 216
C.2 Hydran 201Ci-C Communications Controller ........................................................................... 217
C.3 Hydran 201Ci-1 One-Channel Controller ................................................................................... 218
APPENDIX D : TERMINAL BLOCKS AND CONNECTORS ............................................................ 219
D.1 Hydran 201Ti Intelligent Transmitter ........................................................................................... 219
D.2 Hydran 201Ci-C Communications Controller ........................................................................... 223
D.3 Hydran 201Ci-1 One-Channel Controller ................................................................................... 227
APPENDIX E : HYDRAN 201TI’S HISTORY FILE MESSAGES ........................................................ 231
APPENDIX F : DEFAULT VALUES OF PARAMETERS .................................................................... 235
APPENDIX G : UNIT CONVERSIONS .............................................................................................. 238
G.1 Converting Current to Voltage ....................................................................................................... 238
G.2 Analog Outputs – Converting ppm to mA (or Vice Versa) ..................................................... 238
APPENDIX H : USB PORT DRIVER INSTALLATION ...................................................................... 239
APPENDIX I : EXTRACTING AN OIL SAMPLE ................................................................................ 240
APPENDIX J : MODBUS PROTOCOL DOCUMENTATION ............................................................ 242
J.1 Introduction to the Modbus for the Hydran 201Ti .................................................................. 242
J.2 Modbus RTU Protocol ........................................................................................................................ 242
J.3 Modbus PDU Description ................................................................................................................. 246
J.4 Hydran 201Ti Data Model ................................................................................................................ 252
J.5 Addresses Mapping ............................................................................................................................ 256
APPENDIX K : GLOSSARY ............................................................................................................... 261
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