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Reference Manual
00809-0100-4697, Rev GA
Appendix D: Function Blocks
November 2014
Function Blocks
7 CHANNEL None Allows for custom channel setting. Valid values include:
0: Unitialized
1: Channels 1 to 8 (index values 27 to 34 can only be set
to their corresponding channel number, i.e.
CHANNEL_X=X)
2: Custom settings (index values 27 to 34 can be
configured for any valid channel as defined by the DD)
8, 9, 10,
11, 12,
13, 14,
15
OUT (1, 2, 3, 4,
5, 6, 7, 8)
EU of
OUT_SCALE
The block output value and status
16 UPDATE_EVT None This alert is generated by any change to the static data
17 BLOCK_ALM None The block alarm is used for all configuration, hardware
connection feature, 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 may be reported without clearing the Active
status, if the subcode has changed.
18 SIMULATE None A group of data that contains the current sensor
transducer value and status, and the enable/disable bit.
19 XD_SCALE None The high and low scale values, engineering units code
and number of digits to the right of the decimal point
associated with the channel input value. The XD_SCALE
units code must match the units code of the
measurement channel in the transducer block. If the
units do not match, the block will not transition to MAN
or AUTO. It will automatically change units in the STB
block to the last one written. Multiple blocks reading the
same channel may conflict (only one unit type per
channel).
20 OUT_SCALE None The high and low scale values, engineering unit code
and number of digits to the right of the decimal point
associated with OUT.
21 GRANT_DENY None Options for controlling access of host computers and
local control panels for operating, tuning, and alarm
parameters of the block. Not used by device.
22 IO_OPTS None Allows the selection of input/output options used to
alter the PV. Low cutoff enabled is the only selectable
option.
23 STATUS_OPTS None Allows the user to select options for status handling and
processing. The options supported in the MAI block are
the following:
• Propagate fault forward
• Uncertain if limited
• Bad if limited
• Uncertain if manual mode
24 L_TYPE None Linearization type. Determines whether the field value is
uses directly (Direct), is converted linearly (Indirect), or
is converted with the square root (Indirect Square Root)
25 LOW_CUT % If percentage value of the sensor transducer input falls
below this, PV = 0
26 PV_FTIME Seconds The time constant of the first-order PV filter. It is the
time required for a 63% change in the IN value.
Table D-4. Multiple 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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