Siemens Sitrans LR250

Siemens Sitrans LR250

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Instruction Manual June 2008

sitrans

LR250 (PROFIBUS PA)

Table of Contents

Default Chapter3
- Table of Contents3
Table of Contents7
- Safety Notes7
  - Safety Marking Symbols7
- FCC Conformity7
- The Manual8
  - Application Examples8
- Technical Support8
- Abbreviations and Identifications9
SITRANS LR250 Overview10
Specifications11
- Power11
- Performance11
- Interface12
- Mechanical12
- Environmental13
- Process13
- Approvals13
- Programmer (Infrared Keypad)14
- Dimensions15
Installation20
- Mounting Location21
- Installation Instructions23
Wiring24
- Power24
- Connecting SITRANS LR25024
  - Basic PLC Configuration with PROFIBUS PA25
- Wiring Setups for Hazardous Area Installations25
  - PLC Configuration with PROFIBUS PA for Hazardous Areas26
- Instructions Specific to Hazardous Area Installations29
Quick Start Via Local Operation30
- Activating SITRANS LR25030
- Quick Start Wizard Via the Handheld Programmer36
- Operation Description37
- Auto False Echo Suppression38
- Requesting an Echo Profile38
- Device Address38
- Level Application Example39
Operating Via SIMATIC PDM40
- Functions in SIMATIC PDM40
- Quick Start Wizard Via SIMATIC PDM42
- Changing Parameter Settings Using SIMATIC PDM49
  - Parameters Accessed Via Pull-Down Menus49
Parameter Reference57
- Pull-Down Menus Via SIMATIC PDM57
- Quick Start58
- Setup58
Appendix A: Alphabetical Parameter List105
Appendix B: Troubleshooting107
- Communication Troubleshooting107
- Device Status Icons108
- General Fault Codes110
- Operation Troubleshooting114
Appendix C: Maintenance116
- Unit Repair and Excluded Liability116
Appendix D: Technical Reference117
- Principles of Operation117
- Echo Processing117
  - Process Intelligence117
  - Echo Selection118
- Measurement Range122
  - Near Range122
  - Far Range122
- Measurement Response122
- Damping123
- Loss of Echo (LOE)123
- Maximum Process Temperature Chart125
- Process Pressure/Temperature Derating Curves126
  - Horn Antenna or Wave Guide127
Appendix E: Application Examples130
- Liquid Resin in Storage Vessel, Level Measurement130
- Horizontal Vessel with Volume Measurement131
- Application with Stillpipe132
Appendix F: PROFIBUS PA Profile Structure134
- PROFIBUS Level Device Design134
- Block Model134
  - Description of the Blocks135
Appendix G: Communications Via PROFIBUS PA139
- Device Configuration Tool139
  - Simatic Pdm139
- Network Configuration139
  - The GSD File139
- Bus Termination140
- Power Demands140
- PROFIBUS Address140
- Operating as a Profile Device141
  - Configuring a Device141
  - Configuring PROFIBUS PA with an S7-300/ 400 PLC141
- Cyclic Versus Acyclic Data142
  - Cyclic Data142
- Status Byte143
- Condensed Status144
- Diagnostics146
- Acyclic Data152
Appendix H: ATEX Certificate153
Appendix J: Firmware Revision History156
Glossary157
Index161
LCD Menu Structure165

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