Automatic addresses for PLC components

E3.series can automatically generate PLC I/O addresses. For this to happen, however, the PLC Start address attribute (.PLCADDR), must be assigned to the pin of one of the PLC component I/O elements and the format of the PLC Start address attribute itself must be defined.

 

To add the PLC Start address attribute:

  • Open the PLC component in Database Editor mode

  • Right-click on any symbol of the component and select Component Properties from the displayed dialog

  • Select the Pins tab

  • Select the first I/O element

  • Open the symbol to display the pin

  • Add the attribute PLC Start address by selecting it from the drop-down list in the Name column at the bottom of the Component Properties dialog

  • Click OK

 

Note

The PLC Start Address has to be assigned to the pin of the first I/O element and not to the component itself.

 

In the case where different I/O types belong to a PLC (e.g. Inputs and Outputs), a different start address has to be assigned to the first I/O element of each type.

 

In Project mode, when a PLC is added to a drawing, E3.series will automatically generate addresses for all I/O's. These addresses are assigned to the PLC Physical Address attribute of each of the I/O pins.

 

  • Format of the PLC Start Address attribute (.PLCADDR):

    DI|#2d1-64/1|.|#1x0-F/1|

     

    |     |      |       |
    |     |      |       |
    |     |      |       +------ Count part (hexadecimal from 0 through F with increment /1)
    |     |      |
    |     |     +------------- Fixed text.
    |     |
    |    +---------------------- Count part (decimal from 1 through 64 with increment /1)
    |
    +------------------------------ Fixed text DI

  • Structure of the counting part:

    |#<z><a><sss>-<eee>/<o>|

     

    | Start and end of the count part.
    # The count part is identified by # in the first position.
    <z> Defines the number of digits for the number.
    The number is entered right-aligned, with leading zeros.
    <a>

    Defines the type of counting:

    • D = decimal

    • B = binary

    • O = octal

    • X = hexadecimal
    <sss> Defines the start number.
    - Separator between the start and end numbers.
    <eee> Defines the end number.
    /<o> The increment to be used for the counting. It is identified by a slash ( / ).