Parameters

4.1.1. Target Mode (PROFIBUS PA only)

Used to request an operating mode from the Function Block.

 

128

 

Out of Service (O/S)

Values

 

 

 

16

 

Manual Mode (MAN)

 

 

 

 

 

8

*

Automatic Mode (AUTO)

 

 

 

 

4.1.2. Unit

Engineering unit to be displayed with the output value.

 

percent

%

Options

user--defined

text

linear

m, cm, mm, ft, in

 

 

 

 

 

default: m

 

 

 

 

4.1.3. Filter Time Constant

The time constant for the damping filter. The engineering unit is always in seconds. (This is an exponential filter: when a change occurs at the input, the output will be at 63.2% of the change in one time constant, and will be at full change after 5 time constants.)

4.1.4. Function

Used to select between the different level block outputs: Level, or Distance. (See Level Transducer Block function groups on page 100 for an illustration.)

 

PV/Primary Value

Level

Options

 

 

SV1/Secondary Value 1

Level

 

 

 

 

SV2/ Secondary Value 2

Distance (value in sensor units)

 

 

 

4.1.5. Batch Information (PROFIBUS PA only)

These 4 parameters are intended to be used in Batch Applications conforming to IEC 61512 Part 1 (ISA S88). Other applications do not require these values, which are only stored in the Function Block.

4.1.5.1.Batch ID. Identifies a certain batch to allow assignment of equipment- related information (for example faults, alarms) to the batch.

4.1.5.2.Batch Unit

Identifies the active Control Recipe Unit Procedure or the related Unit (for example, reactor, centrifuge, drier).

4.1.5.3. Batch operation

Identifies the active Control Recipe Operation.

4.1.5.4. Batch Phase

Identifies the active Control Recipe Phase.

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SITRANS LR 460 – INSTRUCTION MANUAL

7ML19985JM01

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Siemens LR 460 Target Mode Profibus PA only, Filter Time Constant, Batch Information Profibus PA only, Batch Unit