Edit Plc User Program (828D Only) - Siemens SINUMERIK 840D sl Operating Manual

Edit PLC user program (828D only)

20.1 Introduction
A PLC user program consists to a large degree of logical operations to implement safety
functions and to support process sequences. These logical operations include the linking of
various contacts and relays. These logic operations are displayed in a ladder diagram.
You can edit the ladder diagrams with the following tools:
● Ladder add-on tool
Using the ladder add-on tool, you can find program errors or fault causes and directly make
minor corrections.
● Ladder editor
You require the ladder editor to use all of the operations supported by the particular PLC
type.
20.2 Displaying and editing PLC properties
20.2.1 Displaying PLC properties
The following PLC properties can be displayed in the "SIMATIC LAD" window:
● Operating state
● Name of the PLC project
● PLC system version
● Cycle time
● Processing time
The processing time can be reset.
You can also update the project data or load a new PLC user program.
Universal
Operating Manual, 05/2017, A5E40868517
Software option
You require the "SINUMERIK 828 ladder logic editor" option to edit PLC pro‐
grams directly on the controller.
20
361