Cyclic Data Settings

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Cyclic Data Settings

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Depending on profile (standard or some other) here is possible to configure the profile relevant scalable cyclic parameters. For each of these parameters are settable the data type and its range. This makes the slave flexible to accept variety of incoming data and to apply them on its internal ranges. For example, as shown on Figure bellow, if Target Position is set to has “signed type” with range from 50 to 60, it means all incoming values over the fieldbus between 50 and 60 will be automatically scaled in order to control the local target position that internally might have range, for example, 0 to 1000.

 

The external value 50 corresponds to internal 0, 60 to 1000, 54 to 400 etc.

 

Figure: Configuration of scalable parameter

InterfaceProfibusConfigurationCyclicDataSettings

 

The ranges can encompass the negative number as well, in case of both, float and signed integer data type.
The float type is 32 bit, IEEE-754 standard. The signed integer is 32 bit long.

 

Scalable cyclic data parameters are in Table. These parameters are integral part of the complete cyclic data buffers described in next section "Cyclic Buffers"

 

Table  - Scalable Cyclic Parameters

#

Parameter

Input/Output

Default Value Range

Min

Max

1

Actual Pressure

Input

0

1’000’000

2

Sensor 1 Pressure

Input

0

1’000’000

3

Sensor 2 Pressure

Input

0

1’000’000

4

Actual Position

Input

0

100’000

5

Actual Target Position

Input

0

100’000

6

Slave Actual Position

Input

0

100’000

7

Target Pressure

Output

0

1’000’000

8

Target Position

Output

0

100’000

9

Zero Adjust Target Position

Output

0

1’000’000

10

Pressure Input Digital Sensor 1

Output

0

1’000’000

11

Pressure Input Digital Sensor 2

Output

0

1’000’000

12

Slave Freeze Target Position

Output

0

100’000