Rosemount 8732

Reference Manual

00809-0100-4665, Rev AA August 2010

 

Profibus PA specific

 

 

Parameters

 

26

TOTAL

The Function Block parameter TOTAL contains

 

 

the integrated quantity of the rate parameter

 

 

provided by CHANNEL and the associated

 

 

status.

27

UNIT_TOT

Unit of the totalized quantity.

28

CHANNEL

Reference to the active Transducer Block,

 

 

which provides the measurement value to the

 

 

Function Block.

29

SET_TOT

The following selections of this Function Block

 

 

parameter are possible:

 

 

0: TOTALIZE; “normal“ operation of the Totalizer

 

 

1: RESET; assign value “0“ to Totalizer

 

 

2: PRESET; assign value of PRESET_TOT to

 

 

Totalizer

30

MODE_TOT

0: BALANCED; true arithmetic integration of the

 

 

incoming rate values.

 

 

1: POS_ONLY; totalization of positive incoming

 

 

rate values only.

 

 

2: NEG_ONLY; totalization of negative incoming

 

 

rate values only.

 

 

3: HOLD; totalization stopped

31

FAIL_TOT

0: RUN; totalization is continued using the input

 

 

values despite the BAD status.

 

 

The status is ignored.

 

 

1: HOLD; totalization is stopped during

 

 

occurrence of BAD status of incoming

 

 

values.

 

 

2: MEMORY; totalization is continued based on

 

 

the last incoming value

 

 

with GOOD status before the first occurrence of

 

 

BAD status.

32

PRESET_TOT

This value is used as a preset for the internal

 

 

value of the FB algorithm. The value is effective

 

 

if using the SET_TOT function.

33

ALARM_HYS

Within the scope of the PROFIBUS-PA

 

 

specification for transmitters there are

 

 

functions for the monitoring of limit violation

 

 

(off-limit conditions) of adjustable limits.

 

 

Maybe the value of one process variable is just

 

 

the same as the value of a limit and the variable

 

 

fluctuates around the limit it will occur a lot of

 

 

limit violations. That triggers a lot of messages;

 

 

so it must be possible to trigger messages only

 

 

after crossing an adjustable hysteresis. The

 

 

sensitivity of triggering of the alarm messages is

 

 

adjustable. The value of the hysteresis is fixed

 

 

in ALARM_HYS and is the same for the

 

 

parameters HI_HI_LIM, HI_LIM, LO_LIM and

 

 

LO_LO_LIM. The hysteresis is expressed as

 

 

value below high limit and above low limit in the

 

 

engineering unit of xx_LIM.

34

HI_HI_LIM

Value for upper limit of alarms

35

HI_LIM

Value for upper limit of warnings

36

LO_LIM

Value for lower limit of warnings

37

LO_LO_LIM

Value for the lower limit of alarms

38 - 51

RESERVED BY PNO

 

52

VIEW_1_TOT

 

 

 

 

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Emerson Rosemount 8732 manual Profibus PA specific Parameters, Total