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Instruction Manual
D103434X012
Blocks
November 2014
74
Figure B‐2. Analog Input Function Block Schematic
ANALOG
MEASUREMENT
ACCESS
ANALOG
MEAS.
CHANNEL
SIMULATE
CONVERT STATUS
CALC.
OUT_D
OUT
PV
ALARM
DETECTION
ALARM_TYPE
ALARM_HYS
LOW_CUT
HI_HI_LIM
HI_LIM
LO_LO_LIM
LO_LIM
OUT_SCALE
XD_SCALE
FIELD_VAL
IO_OPTS
STATUS_OPTS
CUTOFF FILTER
PV_FTIME
L_TYPE
MODE
NOTES:
OUT_D = BLOCK OUTPUT VALUE AND STATUS
OUT_D = DISCRETE OUTPUT THAT SIGNALS A SELECTED ALARM CONDITION.
FIELDBUS‐FBUS_02A
Process Alarm detection is based on the OUT [8] value. You can configure the alarm limits of the following standard
alarms:
D High (HI_LIM [28])
D High high (HI_HI_LIM [26])
D Low (LO_LIM [30])
D Low low (LO_LO_LIM [32])
In order to avoid alarm chattering when the variable is oscillating around the alarm limit, an alarm hysteresis in percent
of the PV [7] span can be set using the ALARM_HYS [24] parameter. The priority of each alarm is set in the following
parameters:
D HI_PRI [27]
D HI_HI_PRI [25]
D LO_PRI [29]
D LO_LO_PRI [31]
Alarms are grouped into five levels of priority, as shown in table B‐1.
Table B‐1. AI Function Block Alarm Priorities
Priority Number Priority Description
(1)
0 The priority of an alarm condition changes to 0 after the condition that caused the alarm is corrected.
1 An alarm condition with a priority of 1 is recognized by the system, but is not reported to the operator.
2
An alarm condition with a priority of 2 is reported to the operator, but generally does not require operator attention (such as
diagnostics and system alerts).
3‐7 Alarm conditions of priority 3 to 7 are advisory alarms of increasing priority.
8‐15 Alarm conditions of priority 8 to 15 are critical alarms of increasing priority.
1. The priority classes “advise” and “critical” have no relationship to PlantWeb Alerts.
- FIELDVUE 1
- DLC3020f Digital Level 1
- Controller for F 1
- fieldbus 1
- Contents 3
- Scope of Manual 5
- Instrument Description 5
- Foundation Fieldbus Blocks 5
- Using This Manual 6
- Specifications 7
- Related Information 7
- Educational Services 7
- Instruction Manual 10
- 28B5536‐1 11
- Section 2 Installation2‐2‐ 13
- Lever Lock 14
- Mounting 15
- DLC3020f Orientation 16
- 20A7423‐C 18
- DIGITAL LEVEL CONTROLLER 18
- AMBIENT TEMPERATURE (_C) 19
- STANDARD TRANSMITTER 19
- 39A4070‐B 19
- Fieldbus Connections 20
- Simulate Enable Jumper 21
- GE46500‐B 22
- Section 3 Overview3‐3‐ 23
- Primary Purpose Variables 24
- Shortcuts 24
- Section 4 Configuration4‐4‐ 27
- Manual Setup 28
- Variable Configuration 29
- Sensor Limits 29
- Sensor Hardware Information 30
- Sensor Units 30
- Sensor Parameters 31
- Torque Tube 32
- Process Fluid 33
- Temperature Compensation 33
- View Fluid Density Table 34
- Display Option 34
- Decimal Places 34
- Display Primary Value Offset 35
- Scrolling Message Control 35
- Snap Acting Control 35
- Primary Value 35
- Primary Value Percent 36
- DI1 Trip Point Settings 36
- DI2 Trip Point Settings 36
- Write Alarm 37
- Block Alarm 37
- Write Lock 37
- Confirm Time 38
- Communication Timeout 38
- Function Block Available 38
- Transducer Block 39
- Features Selected 39
- Alert Key 39
- Maximum Alerts Allowed 39
- Alert Setup 40
- PlantWeb Alerts 41
- Electronics 41
- Operational 41
- Rate Limit 41
- Calibration in Use 43
- Calibrate Instrument 44
- Full Calibration 45
- Trim Current Calibration 46
- Alert Conditions 47
- Variables 48
- Run Time Extremes 49
- Simulate 50
- Calibration Setup/Logs 51
- Instrument Display Test 52
- Restart Device 52
- Tools Required 53
- LCD Meter Assembly 55
- Removing the LCD Meter 56
- Replacing the LCD Meter 56
- Electronics Module 57
- Terminal Box 58
- Assembly 59
- Lever Assembly 60
- Packing for Shipment 61
- Instrument Troubleshooting 62
- Section 8 Parts8‐8‐ 65
- Parts Kits 66
- Parts List 66
- Transducer Assembly 68
- (figure 8‐2) 68
- Terminal Box Assembly 69
- (figure 8‐3) 69
- Terminal Box Cover Assembly 69
- (figure 8‐4) 69
- 28B5741‐B 70
- 29B8444‐A 71
- 29B8445 B 71
- Yamatake NQP Sensor 72
- Foxboro‐Eckardt Sensors 72
- 249 SENSOR (SIDE VIEW) 73
- FIELDBUS‐FBUS_31A 75
- FIELDBUS‐FBUS_03A 77
- Signal Conversion 78
- Advanced Features 79
- AI Block Parameter List 81
- TRANSDUCER_STATUS 9.3 RO 0 82
- UNACKNOWLEDGED 22.2 RO ALL 83
- PID Function Block 87
- Filtering 90
- Feedforward Calculation 91
- Output Tracking 91
- Set Point Tracking 91
- Reverse and Direct Action 92
- PID Block Parameter List 94
- 3=Active reported 97
- 4=Active not reported 97
- Unacknowledged 100
- T_AUTO_HYSTERESIS 101
- View Lists 102
- Status Handling 107
- I/O Selection 107
- Block Initialization 107
- Field Value Processing 108
- Alarm Detection 108
- Block Errors 109
- Action on Failure 109
- Simulation 109
- Mode Handling 116
- Shed With Return Options 117
- Shed With No Return Options 117
- Setting the Output 118
- Action On Fault Detection 119
- I/O Options 120
- Application Information 121
- CAP_STDDEV 125
- Limit Propagation 130
- Substatus Propagation 130
- STATUS_OPTS Supported 130
- SELECT_TYPE Must 132
- Input Selection 133
- Supported Modes 143
- Block Execution 144
- Advanced Topics 146
- Troubleshooting 148
- Resource Block 152
- AUTO 0 to 65535 0 159
- AUTO 1 to 255 1 159
- AUTO 3:AUTO 159
- AUTO 0 to 15 2 168
- Transducer Block (LCD) 174
- Function Block Overview 181
- Resource Blocks 182
- Transducer Blocks 182
- Block Modes 183
- Explanation of Modes 184
- Device Descriptions 185
- Status Propagation 186
- Network Communication 187
- Scheduled Transfers 188
- Unscheduled Transfers 189
- Network Management 190
- Glossary 191
- D103434X012 192
- November 2014 192
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