11 – 128 HEIDENHAIN Service Manual iTNC 530 HSCI
11.4.4 The WATCH LIST function
The WATCH LIST function enables you to create a table of different operands whose states are then
displayed altogether.
Activation You are on the PLC main page.
8 Switch to the next soft-key row.
8 Soft key to call the WATCH LIST function
Selecting symbolic
operands from
the WATCH LIST
8 You have called the WATCH LIST.
8 Switch to the next soft-key row.
8 Press the INSERT LINE soft key.
8 Place the cursor in the SYMBOL column to the right.
8 Press the SYMBOL LIST soft key to open a list box with all local and global operands used in the
PLC program.
8 Use the cursor keys or the FIND soft key to select the desired operand.
8 Load the operand by pressing the SELECT soft key or the ENT key.
8 Press the END soft key to close the list box.
Figure: Example of a selection of symbolic operands
Operands can only be selected with the SYMBOL LIST soft key, if the control operates with the
*.SRC source files of the PLC program.
Otherwise the error message Selection list is empty is displayed.
If necessary, create a WATCH LIST with the aid of the machine manufacturer.
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