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Moniteur 50 Series SMART Positioners User Manual

Page 88

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Operation

4-26

Positioner SIPART PS2/SIPART PS2 PA

C79000-G7476-C150–01

This output provides the current setpoint in AUTO mode and remote
cascade. The status is used especially for the transition from AUTO to
remote cascade.

In conjunction with the parameter input variable (primary value scale)
you cannot only set the setpoints to the SIPART PS2 PA positioner as
a percentage of the valve position but also in physical quantities such
as cubic meters per day or liters per minute. It is also possible to adapt
the readback values to this scaling.

The status provides information about the quality of the input or output
value.

The format of the status is always

7

6

5

4

3

2

1

0

Quality

Additional information

Limit value bits

0: bad

1: uncertain

2: good

3: good (cascade)

t

0: good

1: lower limit value reached, exceeded or limited to lower limit value

2: upper limit value reached, exceeded or limited to upper limit value

3: value is fixed, no measured value

The additional information depends on the quality.

7

6

5

4

3

2

1

0

Meaning

0

0

0

0

0

0

s. a.

bad

0

0

0

0

1

1

s. a.

device fault

0

0

0

1

0

0

s. a.

sensor fault

0

0

0

1

1

1

s. a.

bad, out of service

0

1

0

0

0

0

s. a.

uncertain

0

1

0

0

0

1

s. a.

uncertain, last useful value

0

1

0

0

1

0

s. a.

uncertain, substituted value

0

1

0

0

1

1

s. a.

uncertain, initial value

1

0

0

0

0

0

s. a.

good

1

0

0

0

0

1

s. a.

good, active block alarm (change of pa-
rameters)

1

0

1

0

0

0

s. a.

good, go into failsafe position (command)

1

1

0

0

0

0

s. a.

good (cascade)

Remote cascade
output

Status

Quality

Limit value bit

Additional
information