Siemens NAN 67 Series Wartungshandbuch PDF herunterladen (Seite 44)

100

101

3-20

Ladder Logic (LAD) for S7-300 and S7-400

C79000-G7076-C504-02

Note

If you select the group “FB Blocks”or “FC Blocks” in the “Program

Elements” list box, all the corresponding blocks in the S7 program are listed

below. If you select the group “SFC Blocks” or “SFB Blocks”, all the system

function blocks or system functions available on the CPU will be listed.

If you select the group “Libraries” in the “Program Elements” list box, the

STEP 7 standard libraries and any libraries you have created will be listed.

In this way you can include whole blocks in your network and program calls

for other blocks very quickly.

You can also call multiple instances as Ladder elements if you have defined

them in the variable declaration table. To do this, select the menu command

Insert

Program Element. In the list box of the Ladder elements, you will

find the group “Multiple Instances” under which all declared multiple

instances are listed.

Calling Multiple

Instances

Creating Logic Blocks

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