
75
Reference Manual
00809-0100-4772, Rev FA
March 2016
Table 6-2. Analog Input Function Block System Parameters
Parameter
Index
No.
Available
values
Units
Default
Read/Write
Description
ACK_OPTION
23
0 = Auto Ack
Disabled
1 = Auto Ack
Enabled
None
0 all Disabled Read and Write Used to set auto
acknowledgment of alarms.
ALARM_HYS
24
0 – 50
Percent
0.5
Read and Write The amount the alarm value
must return within the alarm
limit before the associated
active alarm condition clears.
ALARM_SEL
38
HI_HI, HI, LO,
LO_LO
None
None selected Read and Write Used to select the process
alarm conditions that will
cause the OUT_D parameter to
be set.
ALARM_SUM
22
Enable/Disable None
Enable
Read and Write 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.
ALERT_KEY
04
1 – 255
None
0
Read and Write The identification number of
the plant unit. This information
may be used in the host for
sorting alarms, etc.
BLOCK_ALM
21
Not applicable None
Not
applicable
Read only
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.
BLOCK_ERR
06
Not applicable
None
Not
applicable
Read only
This parameter reflects the
error status associated with the
hardware or software
components associated with a
block. It is a bit string, so that
multiple errors may be shown.
CAP_STDDEV 40
> = 0
Seconds
0
Read and Write The time over which the
VAR_INDEX is evaluated.
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