Echo Information

61

Output

61

AIFB1

61

AIFB2

65

mA Output

65

Relay Configuration

67

Device Certification

67

Remaining Device Lifetime

68

Remaining Sensor Lifetime

68

Service Interval

69

Calibration Interval

69

Appendix A: Technical Reference

71

Principles of Operation

71

Measurement Response

71

Echo Processing

72

Profile monitoring via SIMATIC PDM

72

Time Varying Threshold (TVT)

72

Echo selection

72

False Echoes

73

Auto False-Echo Suppression

73

Near Range (Blanking)

74

Echo confidence

74

Loss of Echo (LOE)

74

LOE Timer

74

Fail-safe Mode

74

Maximum Process Temperature Chart

76

Appendix B: Troubleshooting

77

General Fault Codes/PROFIBUS PA Extended Diagnostics

80

Appendix C: Maintenance

84

Unit Repair and Excluded Liability

84

Appendix D: Local Operation Interface

85

The LCD Display

85

RUN mode (startup display)

85

PROGRAM Mode Display

85

The handheld programmer

86

Hand-held programmer: key functions in RUN mode

86

PROGRAMMING via the handheld programmer

86

Hand-held programmer: key functions in Navigation mode

87

Hand-held programmer: key functions in Edit mode

87

Individual Parameter Reset

87

Appendix E: HART Communications

88

HART Device Description (DD)

88

SIMATIC Process Device Manager (PDM)

88

HART modem interface for SIMATIC PDM

88

HART Version

89

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Table of Contents

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Siemens LR 460 instruction manual Iii, AIFB1 AIFB2