Connecting blocks

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To complete the circuit diagram, you must interconnect the blocks. In the programming toolbar, select the block connection icon.

Example for FBD:

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Position the mouse pointer on the block connector. Press the left mouse button and hold it. Move the pointer from the source connector to the target connector. Release the mouse button. LOGO!Soft Comfort connects the two terminals.

Example for LAD:

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LOGO!Soft Comfort offers you a further option of connecting blocks when you right-click on the input or output of a block. In the shortcut menu, click the Connect to block menu command. This calls a selection list that contains all blocks available for your connection. Click on the relevant target block. LOGO!Soft Comfort then draws the connecting line. This method is especially useful for connecting a source to a target block over a greater distance on the programming interface.

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Note on the LAD Editor:

Do not forget to connect the I/Os to the bus bar on the left edge of the editor window.

 

Tips on connecting blocks

After the line is connected from an output to an input, or vice versa, a pop-up tool tip opens to show the connection. Release the mouse button to snap the line onto the indicated input.

You can refer to the short information (tool tips) in LOGO!Soft Comfort for additional help on circuit programming. Move the mouse pointer over a block and briefly hold it in this position. The name of the block is shown. The name of the block input appears when you move the mouse pointer onto the input.

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To make it easier for you to interconnect blocks, a blue frame around the mouse pointer pops when it is "captured" by a pin.

Rules for connecting blocks

The following rules apply to the connection of blocks:

·   You cannot interconnect I/O in the same path of a circuit program.Recursion is not permitted. Interconnect a flag or output if necessary.

·   SFBs also have green "connectors". These do not represent connecting pins, but are used instead for assigning the parameter settings.

·   Analog I/O cannot be connected to digital I/O.

Multiple connections

You can connect I/O to existing connections.

 

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A quick and easy way of connecting blocks in large circuit programs