Lenze DDS v2.3 - Manual (Page 160)

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DDS EN 2.3
An organization unit with EN may be given the name of a function block so that Insert WInsert at
organization unit can be executed.
In this example, AND was overwritten with the name of timer TP .
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The commands in this submenu can be executed at the same cursor positions as the
associated commands in the FBD.
Input Use Input to add a new input to the organization unit.
Output Use Output to add another assignment to an organization unit output.
Box Use Box to add a new organization unit to the selected one. The output of the new organization unit is connected to the
selected input. The organization unit is pre-assigned AND.
Assignment Use Assignment to add an assignment to a variable.
7.6.2.5 Jump
Icon: - Menu: InsertWJump Keyboard: -
Use this command to insert a jump in parallel to the end of the existing coils.
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If the incoming line has a value ” ON” , the jump to the selected label will be carried out.
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The selected position must be the connection between contacts and coils or a coil.
The jump is pre-assigned ” ???” .
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Click the text to change it to the required jump label.
7.6.2.6 Return
Icon: - Menu: Insert WReturn Keyboard: -
Use this command to insert a RETURN instruction in parallel to the end of the existing coils.
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If the incoming line has a value ” ON” , processing of the organization unit in this network will
be terminated.
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The selected position must be the connection between contacts and coils or a coil.
7.6.3 Organization units with EN inputs
Should the LD network need to be used to control other organization unit calls, it is necessary to
insert an organization unit with an EN input or an organization unit with a Boolean input.
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An organization unit with EN inputs is connected in parallel to the coils.
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Based on one EN organization unit, the network can be further developed as in FBD.
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The commands for inserting elements at already inserted EN organization units are available
in menu Insert , submenu Insert at organization unit .
Operators, function blocks, programs or a function with EN input respond like the associated
organization unit in the FBD with the exception that its execution is controlled via the EN input. This
input is connected to the connection line between coils and contacts. If this connection transfers
the information ” ON” , the organization unit will be evaluated.
LD as FBD
Once an organization unit with EN input has been created, it will be possible to build up a network
as in FBD. An EN organization unit can receive data from operators, functions and function blocks
and also transfer data to such organization units.
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