Appendix A. Performance DataGFK-2222AD April 2018 301A-3.10 Example of Predicted Sweep Time CalculationThe sweep time estimate in this example does not include a time for logic execution. The calculatedsweep is for normal sweep time with point faults disabled, and the programmer is not attached. Thetimes used in the calculation are extracted from the following tables:Base Sweep TimesRX7i Module Sweep Impact Times or RX3i I/O Module Sweep Impact TimesSweep Impact Time of Genius I/O and GBCs.A sample calculation of predicted sweep times is provided after the example.Sample RX7i System ConfigurationPS CPE010 BTM 32PTInput32PTInput32PTOutput32PTOutput8CHNAnalogInput4CHNAnalogOutputETM0 1 2 3 4 5 6 7 8 9MAIN RACKSweep Calculations (in μS)Predicted Sweep = Base Sweep + I/O Scan ImpactBase Sweep Time = 465I/O Scan Impact …Number of discrete input type 2 modules—main rackSweep impact time per discrete I/O module2x 37.9 = 75.8Number of discrete output type 2 modules—main rackSweep impact time per discrete I/O module2x 80.4 = 80.4Number of analog input modules—main rackSweep impact time per analog base and output module1x 49.3 = 49.3Number of analog output modules—main rackSweep impact time per analog base and output module1x 49.7 = 49.7Ethernet Module 1 x 55.0 = 55.0Predicted Sweep Time = 775.2
