IM 01C25R03-01E
A-19
APPENDIX 2. INTEGRATOR (IT) BLOCK
A2.7 List of Integrator Block Parameters
TA0206-1.EPS
Index
Parameter
Name
Initial
Value
Write
Mode
Definition
OUT
IN_1
IN_2
SSP
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
TAG: "IT"
0
2 2 2 2
1 2 3 4
2
1
4
4
2
2
4
4
5
5
2
11
2
5
5
5
5
2
2
2
2
1
1
4
4
4
2
2
2
2
2
2
4
4
4
4
4
1
2
Nu11
1
1
1000000.0
1000000.0
0.0
m3(1034)
0
0
0
0.0
0.0
0
0
sec(1)
sec(1)
1.0
1.0
1.0
0
0
0
0.0
0.0
0.0
0.0
UP_AUTO
(1)
0
ⴛ
0004
Block Tag
=o/s
MAN
OS
MAN
MAN
MAN
MAN
MAN
---
---
View
BLOCK_HEADER
ST_REV
TAG_DESC
STRATEGY
ALERT_KEY
MODE_BLK
BLOCK_ERR
TOTAL_SP
OUT_RANGE
GRANT_DENY
STATUS_OPTS
OUT_TRIP
OUT_PTRIP
TIME_UNIT1
TIME_UNIT2
UNIT_CONV
PULSE_VAL1
PULSE_VAL2
REV_FLOW1
REV_FLOW2
RESET_IN
STOTAL
RTOTAL
SRTOTAL
INTEG_TYPE
INTEG_OPTS
Information relating to this function block, such as block tag,
DD revision, execution time
The revision level of the set parameters associated with the Integrator block
Stores comments describing tag information.
The strategy field is used by a high-level system to identify the function block.
Key information used to identify the location at which an alert occurred
Integrator block mode. O/S, MAN, and AUTO are supported.
Indicates the active error conditions associated with the function block in bit strings.
The setpoint of an integrated value or a start value for counting down
The block output
Set scaling for output display. This does not affect operation of the function block.
It is used for making memos.
The parameter for checking if various operations have been executed
Allows you to select a status-related option.
The Integrator block uses "Uncertain if Man mode" only.
Inputs flow (Rate, Accum) signals from the AI block or PI block.
An output parameter informing the user that the integrated value has exceeded the setpoint
An output parameter informing the user that the integrated value is reaching the setpoint
Set the time unit of the rate (kg/s, lb/min, kg/h ... etc.) of the
corresponding IN.
Set the factor for converting the number of pulses for the corresponding
IN into an appropriate engineering unit.
Selector switch used to specify the fluid flow direction
(forward/reverse) with respect to the corresponding IN
The parameter that receives a reset request from an external block to reset the integrated values
Indicates the snapshot of OUT just before a reset.
Indicates the integrated value of the absolute values of the increments if the input status is "Bad."
Indicates the snapshot of RTOTAL just before a reset.
Indicates the snapshot of TOTAL_SP just before a reset.
Integration Type Setting
Specifies an integration optional function.
Value
Name
Description
1
UP_AUTO
Counts up and is automatically reset when TOTAL_SP is reached.
2
UP_DEM
Counts up and is reset as demanded.
3
DN_AUTO
Counts down and is automatically reset when "0" is reached.
4
DN_DEM
Counts down and is reset as demanded.
5
PERIODIC
Counts up and is reset at periods specified in CLOCK_PER.
6
DEMAND
Counts up and is reset as demanded.
7
PER&DEM
Reset periodically or as demanded.
bit
Option Name
Description
0
Input 1 accumulate
Selects Rate or Accum input of IN_1.
1
Input 2 accumulate
Selects Rate or Accum input of IN_2.
2
Flow forward
Integrates forward flow (interprets reverse flow as zero).*
3
Flow reverse
Integrates reverse flow (interprets forward flow as zero).*
4
Use uncertain
Uses an input value of IN_1 or IN_2 whose status is "Uncertain"
regarding it as a value of "Good."
7
Add zero if bad
Interprets an increment as zero if the status of the increment is "Bad."
9
Generate reset event
Generates an alert event at reset.
* If both forward and reverse flows are enabled or disabled, both forward and reverse flows are integrated.
10
ⵑ
15 Reserved
5
Use bad
Uses an input value of IN_1 or IN_2 whose status is "Bad" regarding
it as a value of "Good."
6
Carry
Carries over an excess exceeding the threshold at reset to the next
integration. (Note that this does not apply to UP_AUTO or DN_AUTO.)
8
Confirm reset
After a reset, rejects the next reset until "Confirm" is set to
RESET_CONFIRM.
Specify the unit conversion factor for standardizing the unit of IN_2 into that of IN_1.
