Instruction Manual

Instruction Manual
D103434X012
Blocks
November 2014
80
Table B‐5. Analog Input Block Parameter Definitions (Continued)
DescriptionInitial ValueRange
Write Block
Mode
RO /
RW
Index
Number
Label
PARAMETER_NAME
Simulate
SIMULATE
9
Data Type: DS‐82
A group of data that contains the current transducer
value and status, the simulated transducer value
and status, and the enable/disable bit.
SIMULATE_STATUS 9.1 ALL 0
SIMULATE_VALUE 9.2 ALL 0
 TRANSDUCER_STATUS 9.3 RO 0
TRANSDUCER_VALUE 9.4 RO 0
ENABLE/DISABLE 9.5 ALL
0=Not Initialized
1=Simulation Disabled
2=Simulation Active
1=simulate
disabled
Transducer Scale
XD_SCALE
10 OOS
1010: Meter
1012: cm
1013: mm
1018: ft.
1019: in.
1342: percent
%
Data Type: DS‐68
Transducer scaling (XD_SCALE) is applied to the
value from the channel to produce the FIELD_VAL in
percent. The XD_SCALE units code must match the
channel units code (if one exists), or the block will
remain in OOS mode after being configured.
Output Scale
OUT_SCALE
11 OOS
1010: Meter
1012: cm
1013: mm
1018: ft.
1019: in.
1342: percent
%
Data Type: DS‐68
The high and low scale values, engineering units
code, and number of decimal places to be used in
displaying the OUT parameter and parameters
which have the same scaling as OUT.
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=NA, 1=granted
DENY: 0=NA, 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 Channel 1: PV 0
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.
-Continued-