GE PACSystems RX7i Reference Manual page 295

Appendix A. Performance Data
Worksheet A: I/O Module Sweep Time
The following form can be used for computing I/O module sweep impact. The calculation contains times
for analog input expanders that are either grouped into the same scan segment as the preceding module
or are grouped in a separate new scan segment. The sweep impact times of I/O Modules can be found at
RX7i Module Sweep Impact Times and RX3i I/O Module Sweep Impact Times.
Number of expansion racks
Sweep impact per expansion rack
Number of discrete I/O modules—main rack
Sweep impact per discrete I/O module—main rack
Number of discrete I/O modules—expansion rack
Sweep impact per discrete I/O module—expansion rack
Number of analog input base and output modules—main rack
Sweep impact per analog input base and output module—main rack
Number of analog input expander modules (same segment)—main rack
Sweep impact per analog input expander module (same segment)—main rack
Number of analog input expander modules (new segment)—main rack
Sweep impact per analog input expander module (new segment)—main rack
Number of analog input base and output modules—expansion rack
Sweep impact per analog input base and output module—expansion rack
Number of analog input base and output modules (same segment)—exp. rack
Sweep impact per analog input base and output module (same seg.)—exp. rack
Number of analog input base and output modules (new segment)—exp. rack
Sweep impact per analog input base and output module (new seg.)—exp. rack
Note: If point faults are enabled, substitute the corresponding times for point faults enabled.
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Predicted I/O Module Sweep Impact
PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual
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