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Reference Manual
00809-0100-4697, Rev EA
October 2011
Rosemount 848T
D-16
15, 16, 17,
18, 29, 30,
31, 32
DISABLE_(1, 2,
3, 4, 5, 6, 7, 8)
None A connection from another block that disables the associated input from the selection.
19 SELECT_TYPE None Specifies input selection method. Methods available include: First Good, Minimum,
Maximum, Middle, Average, or Hot Backup.
20 MIN_GOOD None The minimum number of good inputs.
21 SELECTED None The selected input number (1 to 8) or the number of input used for the average output.
22 OP_SELECT None Overrides the algorithm to select 1 of the 8 inputs regardless of the selection type.
23 UPDATE_EVT None This alert is generated by any change to the static data
24 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 may be reported
without clearing the Active status, if the subcode has changed.
33 AVG_USE None Number of parameters to use in the averaging calculation. For example, if AVG_USE is
4 and the number of connected inputs is 6, then the highest and lowest values would
be dropped prior to calculating the average. If AVG_USE is 2 and the number of
connected inputs is 7, then the two highest and lowest values would be dropped prior
to calculating the average and the average would be based on the middle three inputs.
34 ALARM_SUM None The current alert status, unacknowledged states, and disabled states of the alarms
associated with the function block.
35 ACK_OPTION None Used to set automatic acknowledgement of alarms.
36 ALARM_HYS Percent The amount the alarm value must return within the alarm limit before the associated
active alarm condition clears
37 HI_HI-PRI None The priority of the HI HI alarm
38 HI_HI_LIM Percent The setting for the alarm limit used to detect the HI HI alarm condition.
39 HI_PRI None The priority of the HI alarm
40 HI_LIM EU of IN The setting for the alarm limit used to detect the HI alarm condition
41 LO_PRI None The priority of the LO alarm
42 LO_LIM EU of IN The setting of the alarm limit used to detect the LO alarm condition
43 LO_LO_PRI None The priority of the LO LO alarm
44 LO_LO_LIM EU of IN The setting for the alarm limit sued to detect the LO LO alarm condition
45 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
46 HI_ALM None The HI alarm data, which includes a value of the alarm, a timestamp of occurrence and
the state of the alarm
47 LO_ALM None The LO alarm data, which includes a value of the alarm, a timestamp of occurrence
and the state of the alarm
48 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
49 OUT_D None Discrete output to indicate a selected alarm value
50 ALM_SEL None Used to select the process alarm conditions that will cause the OUT_D parameter to
be set.
Table D-6. Input Selector Function Block Parameters
Number Parameter Units Description