Endress+Hauser Fieldgate FXA42, Руководство по эксплуатации

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Operation Fieldgate FXA42
50 Hauser
Unit Description
X
N
B
Put Bit
A0034293-EN
This unit takes the binary value of its input port X (32-bit unsigned integer), sets the bit selected by
the input port N (8-bit unsigned integer) to the state of the Boolean input port B and writes the
resulting value to its output port (32-bit unsigned integer). Bit numbering starts at 0 .
RS FF
Set
Rst
A0034294
This unit represents an RS-Flipflop. The Boolean output port starts with a value of 0 . If the value for
the Boolean input port Set is set to 1 , the value of the output port is also set to 1 . This value remains
unchanged even if the value for the input port Set is reset to 0 .
If the value for the Boolean input port Rst is set to 1 , the value of the output port is set to 0 . This value
remains unchanged even if the value for the input port Rst is reset to 0 .
If Set and Rst are activated at the same time, Rst has priority.
TotalTime
TiltTime
ExtraTime
TriggerTime
Tilt
Position
Up
Down
Shade Ctrl
A0034295-EN
This unit can be used to control window shades or shutters for example. Its first four input ports are
used to define a number of time constants.
The input port
TotalTime (32-bit unsigned integer) defines the time (in ms) needed to move the shade
(or shutter) from its lowest to its highest position (or vice versa).
The input port
TiltTime (32-bit unsigned integer) defines the time (in ms) needed by the shade to tilt
(from the point it starts to ascending to the point it starts descending). This time can be set to zero for
simple shutters.
The value for the input port
ExtraTime (32-bit unsigned integer, in ms) is used if the shade should
move to its lowest or highest position to ensure it closes or opens fully.
If the input port
Up or Down is active for the period of time defined by the value of the input port
TriggerTime (32-bit unsigned integer, in ms), this causes the shade to move to its highest or lowest
position respectively.

Note that the shade controller cannot control the motor of the window shade for periods shorter
than the cycle time. Therefore, all times should ideally be a multiple of the cycle time.
The input port Tilt (8-bit signed integer) is used to tell the shade controller to tilt the shade to a
certain position. Values between -100 and 100 are permitted. -100 represents the extreme tilt
position where the slats are lower on the inside. 0 is the horizontal tilt position. 100 represents the
extreme tilt position where the slats are lower on the outside.
The input port
Position (8-bit signed integer) is used to tell the shade controller to move the shade to
a certain vertical position. Values between 0 and 100 are permitted. 0 represents the highest position
of the shade. 100 represents the lowest position of the shade.
The unit first tries to reach the vertical target position and then the target tilt position.
The Boolean input ports
Up and Down can be used to move the shade manually. The manual input
ports have priority over the automatic ports. If either the input port Up or Down is activated, the
automatic operation is paused until either the input port Tilt or Position changes its value.
The Boolean output ports Up and Down are used to control the shade's motor.
The output ports Tilt and Position (8-bit signed integer) display the current position and tilt of the
shade.
The unit has an initialization sequence that moves the shade to the lowest position when the diagram
is started in order to reach a known position. The output port
Down is set to the time ( TotalTime +
TiltTime + ExtraTime ) ms. All the inputs are ignored during this time.
Right
In
Clk
Shift Reg
A0034296-EN
This unit represents a 32-bit-shift register.
With every rising edge on the Boolean input port
Clk , the unit shifts the content of its register to the
left or right, depending on the value of the Boolean input port Right ( 1
⇒
shift right). The value of the
Boolean input port In is shifted into the register. The resulting register content is written to the output
port (32-bit unsigned integer).
In
P1
Q1
P2
Q2
Sig Convert
A0034297-EN
This unit transforms the value of the input port In according to a linear function and writes the result
to the output port.
The transformation is performed in the largest numeric data type of all the output ports that are
connected to the input ports of the unit. All the ports of the unit adopt this data type.
The linear function is defined by the two points (
P1 , Q1 ) and ( P2 , Q2 ).
Out
In
Q2
Q1
P2 P1
A0034328