For the digital, analog and some miscellaneous component, you need to set the variable. LOGO!Soft Comfort supports the following two ways of binding the variable to the component:

• Binding variable from Tag Table

• Binding variable by dragging and dropping the function block

Binding variable from Tag Table

The component filters the variables in Tag table, and only the variables which match the component property are displayed in the Variable Name drop down list.

Set the variables under Properties -> Binding:

1. Click the down arrow at the right of the Variable Name row.

   • If you select Default Tag, the variable you select is local and is not configurable.

   • If you select variables from tag table, the variable you select is global.

2. Select block type, block number, block format, decimal places in the corresponding drop-down list.

   Block Type	Block Number	Writable
   I	I1-I64	Read Only
   Q	Q1-Q60	Read and Write
   M	M1-M128	Read and Write
   AI	AI1-AI16	Read Only
   AQ	AQ1-AQ16	Read and Write
   AM	AM1-AM128	Read and Write
   FAM	FAM1-FAM32	Read and Write
   V	VB: 0-850	Read and Write
   	Bits: 0-7	Read and Write
   VB	0-850	Read and Write
   VW	0-849	Read and Write
   VD	0-847	Read and Write
   Cursor Key	C1-C4	Read Only
   Function Key	F1-F4	Read Only
   Shift Register	S1.1-S1.8,S2.1-S2.8, S3.1-S3.8,S4.1-S4.8,	Read Only
   VX	VX: 0-2047	Read and Write
   	Bits: 0-7	Read and Write
   VXB	0-2047	Read and Write
   VXD	0-2044	Read and Write
   VXW	0-2046	Read and Write
   VR	VR: 0-511	Read and Write
   	Bits: 0-7	Read and Write
   VRB	0-511	Read and Write
   VRD	0-508	Read and Write
   VRW	0-510	Read and Write

3. For the writable block types, you can enable the write function by checking box next to Writable.

Binding variable by dragging and dropping the function block

1. Click command to split the editor pane into two windows.

2. Open and drag the circuit diagram into one window and drag the web page into another window.

3. Select the function block in the diagram, then hold down the [Alt] key and drag and drop the function block on the component you want to bind to.

4. Check the component properties pane. The component binding values are synchronized from the function block.

You can tell from the mouse icon whether the function block variable and the component can be bound.

	The binding is not allowed.
	The binding is allowed.