- For APOGEE Compacts and Modular controllers, the number of FLN devices connected to the automation station has the greatest influence on program code evaluation speed. This does not apply to PXC.A controllers.
- For APOGEE Compacts and Modular controllers, the number of program lines defined in a device affects the line evaluation rate. This does not apply to PXC.A controllers.
- When using time-based commands, be aware that different versions of the same device may execute the same program code at different rates.
For example, Version 3.0 controller boards are capable of evaluating an average of 350 lines of program code per second. Automation stations using Version 4.0 controller boards are capable of evaluating an average of 500 lines of program code per second.
- When multiple PPCL programs are installed in a automation station, try to create programs that are roughly the same number of lines per program. Since the computer sequentially executes one line of each enabled program, the program with the fewest lines will be executed more often the program with the most lines.
For example, an automation station contains two programs: one with 10 lines and the other with 50 lines. The shorter program will be executed five times before the longer program is executed once.