Instruction Manual

Instruction Manual
D103412X012
Detailed Setup—AI Function Block
January 2015
154
Table 4‐57. Analog Input Block Parameter Definitions (Continued)
Description
Initial
Value
Range
Write Block
Mode
RO /
RW
Index
Number
Label
PARAMETER_NAME
Grant Deny
GRANT_DENY
12
Data Type: DS‐70
Options for controlling access of host computer and
local control panels to operating, tuning, and alarm
parameters of the block.
GRANT: 0=N/A, 1=granted
DENY: 0=N/A, 1=denied
GRANT 12.1 ALL
Valid Bits
0: Program
1: Tune
2: Alarm
3: Local
All bits: 0
DENY 12.2 ALL All bits: 0
I/O Options
IO_OPTS
13 OOS 10: Low cutoff All bits: 0
Data Type: Bit String
0=Disable
1=Enable
User options for Output Control.
Status Options
STATUS_OPTS
14 OOS
3: Propagate Failure
forward
6: Uncertain if Limited
7: Bad if Limited
8: Uncertain in Man
Mode
All bits: 0
Data Type: Bit String
0=Disable
1=Enable
User options for Status
AI Channel
CHANNEL
15 OOS See table 4‐54 0: Undefined
Data Type: Unsigned16
Used to select the type of threshold that is used to
set the output.
Linearization Type
L_TYPE
16 OOS, MAN
0: Undefined
1: Direct
2: Indirect
3: Ind. Sqr. Root
0: Undefined
Data Type: Enum
Linearization type. Determines whether the field
value is used directly (Direct), is converted linearly
(Indirect), or is converted with the square root
(Indirect Square Root). The OUT_SCALE is normally
the same as the transducer, but if L_TYPE is set to
Indirect or Ind Sqr Root, OUT_SCALE determines the
conversion from FIELD_VAL to the output.
Low Cutoff
LOW_CUT
17 ALL Positive 0
Data Type: Float
If calculated output is below this value the output is
0.
Process Value Filter Time
PV_FTIME
18 ALL Positive 0
Data Type: Float
Time constant of first order filter on PV, in seconds.
Field Value
FIELD_VAL
19 RO 0
Data Type: DS‐65
Value of the field device analog input, with a status
reflecting the Transducer condition.
Updated Event
UPDATE_EVT
20
Data Type: DS‐73
This alarm is generated whenever a static parameter
is changed.
UNACKNOWLEDGED 20.1 RW N/A
0=Undefined
1
=Acknowledged
2
=Unacknowledged
0=Undefined
UPDATE_STATE 20.2 RO N/A
0=Undefined
1
=Update reported
2
=Update not reported
0=Undefined
TIME_STAMP 20.3 RO N/A 0
STATIC_REVISION 20.4 RO N/A 0
RELATIVE_INDEX 20.5 RO N/A 0
Block Alarm
BLOCK_ALM
21
Data Type: DS‐72
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.
UNACKNOWLEDGED 21.1 RW
0=Undefined
1
=Acknowledged
2
=Unacknowledged
ALARM_STATE 21.2 RO
0=Undefined
1
=Clear‐reported
2
=Clear‐not reported
3
=Active‐reported
4
=Active‐not reported
TIME_STAMP 21.3 RO
SUBCODE 21.4 RO
VALUE 21.5 RO
-Continued-