Ao Function Block Parameters - Emerson Micro Motion 2700 Configuration And Use Manual

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Model 2700 PROFIBUS Block Parameters
F.4.10

AO function block parameters

Table F-15 lists the parameters for the AO function blocks.
Table F-15
AO function block parameters
Index
Parameter Mnemonic
Standard PA parameters
16
BLOCK_OBJECT
17
ST_REV
18
TAG_DESC
19
STRATEGY
20
ALERT_KEY
21
TARGET_MODE
22
MODE_BLK
23
ALARM_SUM
24
BATCH
AO Function Block Standard Parameters
25
SP
(DD Name: AO Set Point)
26
RESERVED
27
PV_SCALE
(DD Name: AO PV Scale)
28
READBACK
(DD Name: AO ReadBack
Value)
29
RESERVED
30
RESERVED
31
RESERVED
32
RESERVED
33
RESERVED
34
RESERVED
35
RESERVED
36
RESERVED
182
Definition
Message
Type
This object contains the
RECORD
characteristics of the block
A block has static block
SIMPLE
parameters that are not
changed by the process.
Values are assigned to this
parameter during the
configuration of optimization.
The value of ST_REV
increases by 1 after every
change of a static block
parameter.
Every block can be assigned
SIMPLE
a textual TAG description.
The TAG_DESC must be
unambiguous and unique in
the field bus system.
Grouping of function block.
SIMPLE
The STRATEGY field can be
used to group blocks.
This parameter contains the
SIMPLE
identification number of the
plant unit.
This parameter contains
SIMPLE
desired mode normally set by
a control application of an
operator. The modes are
valid alternatively only, i.e.
only one mode can be set at
one time. A write access to
this parameter with more than
one mode is out of the range
of the parameter and has to
be rejected.
This parameter contains the
RECORD
current mode and the
permitted and normal mode
of the block.
This parameter contains the
RECORD
current states of the block
alarms.
This parameter is intended to
RECORD
be used in Batch applications
in line with IEC 61512
Part1. Only Function Blocks
carry this parameter. There is
no algorithm necessary
within a Function Block.
Set point.
RECORD
Conversion of the PV in
RECORD
engineering units to PV in
percent as the input value of
the
Function Block.
The actual position of the final
RECORD
control element within the
travel span (between
OPEN and CLOSE position)
in units of PV_SCALE.
Data Type/
Size
Store
Default
Structure
/Rate
Value
(HZ)
DS-32
20
S
----
Unsigned16
2
N
0
OCTET
32
S
' '
STRING
Unsigned16
2
S
0
Unsigned8
1
S
0
Unsigned8
1
S
Auto
(0x08)
---
DS-37
3
D
DS-42
8
D
0,0,0,
0
DS-67
10
S
0,0,0,
0
101
5
D
----
DS-36
11
S
100,0
%
101
5
D
----
Model 2700 Transmitter with PROFIBUS-PA
Access
Enumerated List of
Values / Range
R
NA
R
NA
R/W
NA
R/W
NA
R/W
NA
R/W
0x08 – Auto
0x10 – Manual
0x80 – OOS
R
NA
R
NA
RW
NA
R/W
NA
R/W
NA
R
NA
Modbus
Register / Coil
NA
NA
NA
NA
NA
R-2295
R-2296
NA
NA
NA
R-2298 (only
units)
NA

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