Reference Manual

00809-0100-4665, Rev AA August 2010

Rosemount 8732

AI Block Parameter Attribute Definitions

The following table describes the parameters that are available in the analog input function block. Each line item in the table defines the element and specifies the requirements for each element.

Absolute

Parameter

Description

Index

 

Profibus PA Specific Block

 

 

Header

 

16

BLOCK_OBJECT

This object contains the characteristics of the

 

 

blocks.

17

ST_REV

The modification of at least one static parameter in

 

 

a block has to be incremented by the according

 

 

ST_REV at least by one.

18

TAG_DESC

Every block can be assigned a textual TAG

 

 

description. The TAG_DESC must be unambiguous

 

 

and unique in the fieldbus system.

19

STRATEGY

Grouping of Function Block. The STRATEGY field

 

 

can be used to group blocks.

20

ALERT_KEY

This parameter contains the identification number

 

 

of the plant unit. It helps to

 

 

identify the location (plant unit) of an event.

21

TARGET_MODE

The TARGET_MODE parameter contains desired

 

 

mode normally set by a control application or 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 then one mode

 

 

is out of the range of the parameter and have to be

 

 

refused.

22

MODE_BLK

This parameter contains the current mode, the

 

 

permitted and normal mode of the block.

23

ALARM_SUM

This parameter contains the current states of the

 

 

block alarms.

24

BATCH

This parameter is intended to be used in Batch

 

 

applications. Not implemented in 8732E device.

25

RESERVED by PNO

 

26

OUT

The Function Block parameter OUT contains the

 

 

current measurement value in a vendor specific or

 

 

configuration adjusted engineering unit and the

 

 

belonging state in AUTO MODE. The Function

 

 

Block parameter OUT contains the value and status

 

 

set by an operator in MAN MODE.

27

PV_SCALE

Conversion of the Process Variable into percent

 

 

using the high and low scale values. The

 

 

engineering unit of PV_SCALE high and low scale

 

 

values are directly.

28

OUT_SCALE

Related to the PV_UNIT of the configured

 

 

Transducer Block (configured via Channel

 

 

parameter). The PV_SCALE high and low scale

 

 

values follow the mapped to last 16 characters of

 

 

DEVICE_ID_STRING parameter in Mfg. Block.

29

LIN_TYPE

Type of linearization. The 8732E only supports “No

 

 

linearization”.

30

CHANNEL

Reference to the active Transducer Block which

 

 

provides the measurement value

 

 

to the Function Block.

31

RESERVED

 

32

PV_FTIME

Filter time of the Process Variable.

3-3

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Emerson Rosemount 8732 manual AI Block Parameter Attribute Definitions, Absolute Parameter Description