Lenze PLC Designer PLC Designer (R2-x) - Manual (Page 305)

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DMS 3.2 EN 02/2011 TD29 303
In each case, the last element pasted is connected to the branch located in front of the
pasting point.
Note!
The following problem is solved by cutting and pasting: A new operator is inserted
in the middle of a network. The branch located on the right of the operator is now
connected with the first input, but should be connected with the second input. You
can now select the first input and perform the command 'Edit' 'Cut'. Following this,
you can select the second input and perform the command 'Edit' 'Paste'. This way,
the branch is dependent on the second input.
The Function Block Diagram in the Online Mode
In the Function Block Diagram, breakpoints can only be set to networks. If a
breakpoint has been set to a network, then the network numbers field will be
displayed in blue. The processing then stops in front of the network where the
breakpoint is located. In this case, the network numbers field will become red. Using
stepping (single step), you can jump from network to network.
The current value is displayed for each variable. Exception: If the input to a function
block is an expression, only the first variable in the expression is monitored.
Doubleclicking on a variable opens the dialog box for writing a variable. Here it is
possible to change the present value of the variable. In the case of Boolean variables,
no dialog box appears; these variables are toggled.
The new value will turn red and will remain unchanged. If the 'Online' 'Write values'
command is given, then all variables are placed in the selected list and are once again
displayed in black.
The flow control is started with the 'Online' 'Flow control' command Using the flow
control, you can view the present values that are being carried in the networks over
the connecting lines. If the connecting lines do not carry Boolean values, then the
value will be displayed in a specially inserted field. If the lines carry Boolean values,
then they will be shaded blue in the event that they carry TRUE. By this means, you
can accompany the flow of information while the PLC is running.
If you place the mouse pointer briefly above a variable, then the type, the address and
the comment about the variable will be displayed in a Tooltip.