Appendix A. Performance Data
284
PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual
GFK-2222AD
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
RX3i I/O Module Sweep Impact Times
Number of expansion racks
Sweep impact per expansion rack
______
x ______
= ______
Number of discrete I/O modules
—
main rack
Sweep impact per discrete I/O module
—
main rack
______
x ______
= ______
Number of discrete I/O modules
—
expansion rack
Sweep impact per discrete I/O module
—
expansion rack
______
x ______
= ______
Number of analog input base and output modules
—
main rack
Sweep impact per analog input base and output module
—
main rack
______
x ______
= ______
Number of analog input expander modules (same segment)
—
main rack
Sweep impact per analog input expander module (same segment)
—
main rack
______
x ______
= ______
Number of analog input expander modules (new segment)
—
main rack
Sweep impact per analog input expander module (new segment)
—
main rack
______
x ______
= ______
Number of analog input base and output modules
—
expansion rack
Sweep impact per analog input base and output module
—
expansion rack
______
x ______
= ______
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
______
x ______
= ______
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
______
x ______
= ______
Predicted I/O Module Sweep Impact
______
Note:
If point faults are enabled, substitute the corresponding times for point faults enabled.