GE VersaMax PLC

7.1 Parts of the CPU Sweep
Housekeeping
Data Input
Program
Execution
Data Output
Programmer
Service
Diagnostics
Scan Time of
CPU
System
Communications
NO
NO
NO
YES
YES
YES
Output Scan
Input Scan
Run
Mode
?
Logic
Solution
I/O
Enabled
?
Programmer
Communications
System
Communications
Application Program
Checksum Calculation
and Verification of
Physical and Programmed
Configuration
Start of Sweep
Housekeeping
I/O
Enabled
?
Start Next Sweep
94 GFK-1503E VersaMax PLC User Manual
For public disclosure