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Reference Manual
00809-0100-4697, Rev GA
Appendix D: Function Blocks
November 2014
Function Blocks
18 PV_FTIME Seconds
The time constant of the first-order PV filter. It is the
time required for a 63% change in the PV or OUT
value.
19 FIELD_VAL Percent
The value and status from the transducer block or
from the simulated input when simulation is enabled.
20 UPDATE_EVT None
This alert is generated by any change to the static
data.
21 BLOCK_ALM None
The block alarm is used for all configuration,
hardware, connection failure or system problems in
the block. The cause of the alert is entered in the
subcode field. The first alert to become active will set
the Active status in the Status parameter. As soon as
the Unreported status is cleared by the alert reporting
task, another block alert may be reported without
clearing the Active status, if the subcode has changed.
22 ALARM_SUM None
The summary alarm is used for all process alarms in
the block. The cause of the alert is entered in the
subcode field. The first alert to become active will set
the Active status in the Status parameter. As soon as
the Unreported status is cleared by the alert reporting
task, another block alert may be reported without
clearing the Active status, if the subcode has changed.
23 ACK_OPTION None Used to set auto acknowledgment of alarms.
24 ALARM_HYS Percent
The amount the alarm value must return within the
alarm limit before the associated active alarm
condition clears.
25 HI_HI_PRI None The priority of the HI HI alarm.
26 HI_HI_LIM
EU of
PV_SCALE
The setting for the alarm limit used to detect the HI HI
alarm condition.
27 HI_PRI None The priority of the HI alarm.
28 HI_LIM
EU of
PV_SCALE
The setting for the alarm limit used to detect the HI
alarm condition.
29 LO_PRI None The priority of the LO alarm.
30 LO_LIM
EU of
PV_SCALE
The setting for the alarm limit used to detect the LO
alarm condition.
31 LO_LO_PRI None The priority of the LO LO alarm.
32 LO_LO_LIM
EU of
PV_SCALE
The setting for the alarm limit used to detect the LO
LO alarm condition.
33 HI_HI_ALM None
The HI HI alarm data, which includes a value of the
alarm, a timestamp of occurrence and the state of the
alarm.
34 HI_ALM None
The HI alarm data, which includes a value of the
alarm, a timestamp of occurrence and the state of the
alarm.
35 LO_ALM None
The LO alarm data, which includes a value of the
alarm, a timestamp of occurrence and the state of the
alarm.
36 LO_LO_ALM None
The LO LO alarm data, which includes a value of the
alarm, a timestamp of occurrence and the state of the
alarm.
Table D-1. Analog Input Function Block Parameters
Number Parameter Units Description
- Transmitter with FOUNDATION 1
- fieldbus 1
- Transmitter with F 3
- Title Page 4
- 1Section 1: Introduction 5
- 2Section 2: Installation 5
- 3Section 3: Configuration 5
- AAppendix A: Reference Data 6
- DAppendix D: Function Blocks 8
- Section 1 Introduction 9
- 00809-0100-4697, Rev GA 10
- November 2014 10
- OUNDATION fieldbus Technology 10
- 1.3 Service support 11
- Section 1: Introduction 12
- Introduction 12
- Section 2 Installation 13
- 2-in. screws 14
- 2.3 Wiring 16
- RTD or ohm inputs 17
- Analog inputs 17
- 2.4 Grounding 19
- Shielded wire 20
- Grounded thermocouple inputs 21
- Analog device inputs 21
- 2.5 Switches 22
- 2.6 Tagging 22
- Transmitter tag 23
- Sensor tag 23
- 2.7 Installation 24
- 2.7.2 Using conduit entries 25
- Section 2: Installation 26
- Section 3 Configuration 27
- 3.2 Configuration 28
- 3.2.5 Alarms 29
- 3.2.6 Damping 29
- Typical profiling application 31
- OUNDATION fieldbus 33
- Section 3: Configuration 34
- Number Parameter Description 34
- OUNDATION 35
- How to use PlantWeb Alarm 39
- 3.4.3 PlantWeb alerts 40
- MAINT_ALARMS 41
- Advisory alarms 42
- RECOMMENDED_ACTION 43
- FD failed alarms 44
- Configuration 45
- FD CHECK ALARMS 47
- 3.4.7 Transducer blocks 49
- Transducer block errors 50
- Transducer block modes 50
- Automatic (Auto) 51
- Out of Service (OOS) 51
- 4.4.2 Resource block 64
- Appendix A Reference Data 65
- OUNDATION fieldbus parameters 66
- A.3 Function blocks 67
- A.4.1 Stability 68
- A.4.2 Self calibration 68
- A.4.3 Vibration effect 68
- A.4.5 Accuracy 68
- A.4.8 Analog sensors 4–20mA 69
- Reference Data 70
- Examples 71
- A.5 Dimensional drawings 72
- A.5.1 Mounting options 74
- A.6 Ordering information 75
- Approvals 77
- B.3.2 Canada 78
- B.4 Europe 79
- B.5 International 81
- B.5.1 Brazil 83
- B.5.2 China 84
- B.5.3 Japan 86
- B.6 Combinations 87
- B.8 Additional Certifications 88
- B.10 Installation drawings 90
- Product Certificates 91
- Appendix C FOUNDATION 99
- Technology 99
- C.3 Device descriptions 100
- C.4 Block operation 101
- C.5 Network communication 101
- C.5.1 LAS 102
- C.5.2 Addressing 103
- C.5.3 Scheduled transfers 104
- C.5.4 Unscheduled transfers 105
- OUNDATION Fieldbus Technology 106
- Appendix D Function Blocks 107
- Reference Manual 108
- Appendix D: Function Blocks 108
- Table 3-5 on page 11 108
- D.1.1 Functionality 110
- Filtering 111
- Signal conversion 111
- Indirect 111
- Indirect square root 112
- Block errors 112
- Alarm detection 113
- Status handling 114
- Advanced features 114
- Application information 114
- D.2.1 Functionality 118
- D.3.1 Functionality 125
- Block execution 127
- AVG_USE = 6 129
- Numerics 131
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