User's Manual
Table Of Contents
- Table of Contents
- SITRANS LR 460
- Specifications
- Installation
- Wiring
- 4-20 mA Start Up
- Local Operation
- LCD menu structure
- HART Communications
- Remote operation via PROFIBUS PA
- PROFIBUS PA Profile Structure
- Appendix A: Parameter Descriptions
- 1. Identification
- 2. Input
- 3. Output
- 5. Maintenance settings
- 6. Condensed Status Setup
- 6.1. Condensed Status Mode
- 6.1.1. Loss of Echo S0 (Status; Diagnosis)
- 6.1.2. Cable Fault S1 (Status; Diagnosis)
- 6.1.3. No Tech Power S2 (Status; Diagnosis)
- 6.1.4. Device Lifetime Maintenance Required Limit S3 (Status; Diagnosis)
- 6.1.5. Device Lifetime Maintenance Demanded Limit S4 (Status; Diagnosis)
- 6.1.8. Sensor Lifetime Maintenance Demanded Limit S7 (Status; Diagnosis)
- 6.1.9. Device Service Maintenance Required Limit S8 (Status; Diagnosis)
- 6.1.10. Device Service Maintenance Demanded Limit S9 (Status; Diagnosis)
- 6.1.11. LTB Scale S10 (Status; Diagnosis)
- 6.1.12. Internal Temp Sensor S11 (Status; Diagnosis)
- 6.1.13. Internal Temp High S12 (Status; Diagnosis)
- 6.1.16. AIFB2 PV Range S15 (Status; Diagnosis)
- 6.1.19. Calibration Schedule Maintenance Demanded Limit S18 (Status; Diagnosis)
- 6.1.30. Memory EEPROM S29 (Status; Diagnosis)
- 6.1.31. Memory EEPROM Flags S30 (Status; Diagnosis)
- 6.1.32. Memory Flash S31 (Status; Diagnosis)
- 6.1.33. Ident Violation S32 (Status; Diagnosis)
- 6.1.34. Internal Temperature Calibration S33 (Status; Diagnosis)
- 6.1. Condensed Status Mode
- Appendix B: Technical Reference
- Appendix C: Troubleshooting
- Appendix D: Maintenance
- Appendix E: Software Revision History
- Glossary
- Index
Page 56 SITRANS LR 460 – INSTRUCTION MANUAL 7ML19985JM01
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Profi;e structure
How the AIFBs work
The Analog Input Function Blocks allow you to control modifications to the output value
(PROFIBUS cyclic data).
Output Conversion
Values transmitted by the Level TB have a status attached. The decision on what to do
with each value is made by the Analog Input Function Block.
Device/ Input Simulation
The input can be a simulated value instead of a TB OUT value. This allows the AI block to
be tested independently of the characteristics of the environment.
Failsafe
• If the status of the Primary Value or Simulation Value is bad, the fault logic can
output either the last usable measured value, or a given substitute value.
Device / Output Simulation
One of three settings can be selected:
• The result is the output parameter (OUT).
AIFB execution steps:
The AIFBs can provide a linear conversion to any desired units.
1. The input value is normalized (Scaling Input)
Process Variable range applies to any of the four LTB values. (Units of the Process
Variable scale are the same as the units used for the LTB output.) Output units
together with Process Variable range determine how the LTB output is converted to
whatever units the customer wants.
Setting description Output value
AUTO automatic the automatically-recorded measured value
MAN manual a manually-set fixed simulation value
O/S function block disabled the preset safety value.