Select input signal
In
Configuration block
In
determines the controller input signal. The following
input options can be defined using selection options 0 to 5:
0
— Pt 100 – 30.0 to 150.0 °C
1
— Pt 100 –100.0 to 400.0 °C
2
— Current 0(4) to 20 mA
3
— Voltage 0(2) to 10 V
4
— Ni 100 – 20.0 to 90.0 °C
5
— Ni 100 – 60.0 to 180.0 °C
Measuring range limits
In__
and
In
—
In__
— Starting value (minimum value)
In
—
— End value (maximum value)
The measuring range of controlled variable x is determined in configuration
block
In
. Using
In__
and
In
—
, the measuring range can be determined by the
user in the range of
In
. Both the lower-limit and upper-limit range value mu-
tually limit each other. If, for example, the configuration is assigned
In
=
0
(for Pt 100 with –30.0 to 150.0 °C measuring range), the measuring range
of controlled variable x is defined at
In__
= –30.0 and
In
—
= 150.0. This
measuring range can be modified within limits
In__
and
In
—
. For the input
signals involving current or voltage, the measuring range is determined at
In__
= 0.0 and
In
—
= 100.0 in the configuration process. If the measuring
range limits are modified in the range from –1999 to 9999 with variable
decimal point, the input signals are only converted for display purposes.
Example: x-input = 0 to 20 mA,
In__
= 100.0,
In
—
= 300.0
x = 50 % = 10 mA = display 200.0
Decimal point
Ind
(for
In
=
2
or
3
)
The decimal point and the controlled variable can be selected by the user in
the bottom display and top displays, resp.
0
— No decimal point e.g., W1 = 132
1
— One decimal point e.g., W1 = 13.2
2
— Two decimal points e.g., W1 = 1.32
3
— Three decimal points e.g., W1 = 0.132
When input signal of resistance thermometers Pt 100 or Ni 100 is selected,
Ind
=
1
is set; i.e., a decimal point is shown.
Select the current or voltage ranges of controlled variable x with
In0
0
— 0 to 20 mA or 0 to 10 V Depending on the selection
1
— 4 to 20 mA or 2 to 10 V Depending on the selection
(inapplicable for Pt 100 or Ni 100)
18
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