Ladder Viewer And Ladder Add-On; Overview; Parameterization - Siemens SINUMERIK 840D sl Function Manual

14.3

Ladder viewer and ladder add-on

14.3.1

Overview

Function
The essential functions of the ladder viewer and ladder-on are as follows:
● Ladder viewer: Displays the logic operations of contacts and relays in the PLC user program
as ladder diagram (LAD)
● Ladder add-on:
– Is used to troubleshoot the PLC user program
– Editing or creating interrupt routines
– Marshalling data
References
A detailed description of the functionality and using the ladder viewer and ladder add-on can
be found in the relevant SINUMERIK Operating Manuals:
● Operating Manual, Universal
● Operating Manual, Turning
● Operating Manual, Milling
in the Chapter, "Letter viewer and ladder add-on"
14.3.2

Parameterization

Display of addresses
Using NC-specific machine data, the display of addresses in the ladder view can be configured
according to SIMATIC S7 300 notation:
MD51230 $MN_ENABLE_LADDER_DB_ADDRESSES = <Value>
<Value>
Enabling / locking editing
Using the NC-specific machine data, the editing of the interrupt programs INT_100 and
INT_101 can be enabled and locked:
MD51231 $MN_ENABLE_LADDER_EDITOR = <Value>
<Value>
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Meaning
0 Address display in SIMATIC S7 200 notation (e.g. Vxxxxx)
1 Address display in SIMATIC S7 300 notation (e.g. DBxx.DBBxxxx)
Meaning
0 The interrupt programs INT_100 and INT_101 cannot be edited.
1 Interrupt programs INT_100 and INT_101 can be edited.
P4: PLC for SINUMERIK 828D
14.3 Ladder viewer and ladder add-on
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