Displaying Cross References - Siemens SINUMERIK 840D sl Operating Manual

24.7

Displaying cross references

You can display all the operands used in the PLC user project and their use in the list of cross
references.
This list indicates in which networks an input, output, bit memory, etc. is used.
The list of cross references contains the following information:
● Block
● Address in the network
● Context (command ID)
Symbolic and absolute address
You can select between specification in absolute or symbolic address.
Elements for which there are no symbolic identifiers are automatically displayed with absolute
identifiers.
Opening program blocks in the ladder diagram
From the cross references, you can go directly to the position in the program where the operand
is used. The corresponding block is opened in window 1 or 2 and the cursor is set on the
corresponding element.
Procedure
Milling
Operating Manual, 05/2017, A5E40868956
1. Ladder add-on tool is open.
2. Press the "Cross refs." softkey.
The list of cross references opens and the operands are displayed sorted
according to absolute address.
3. Press the "Symbol. address" softkey.
The list of operands is displayed sorted according to symbolic address.
4. Press the "Absolute address" softkey to return to the display showing the
absolute addresses.
5. Select the desired cross reference and press the "Open in window 1" or
"Open in window 2" softkey.
The ladder diagram is opened and the selected operand is marked.
6. Press the "Find" softkey.
The "Find / Go To" window opens.
7. Select "Find operand" or "Go to" and enter the sought element or the
desired line and select the search order (e.g. search up).
Edit PLC user program (828D only)
24.7 Displaying cross references
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