LS Industrial Systems XBC-DR10E - 5.2 Operation Mode

Chapter 5 Programming Concepts
XBC E-Type Main Unit 5-16 Ver. 1
5.2 Operation Mode
For operation mode of the CPU module, there are 3 types such as RUN mode, STOP mode and DEBUG mode.
This describes the operation processing of each operation mode.
5.2.1 RUN mode
Executes program operation normally.
1. Processing at mode change
First, execute initialization of data area and check the integrity of program
2. Operation processing contents
a. Execute I/O update and program operation.
b. Detects the start condition of the Interrupt Programs and executes the Interrupt
Program.
c. Checks for normal operation or missing built-in module.
d. Communication service and other internal processing.
RUN mode first scan start
Initialize data area
Check Program for Errors
Update input image table
Process ladder program and interrupt
program
Communication service and internal
processing
Update output image table
Operation
mode change
RUN mode keep
Change to other mode
Operation by changed
operation mode
Diagnostic and Error checking