GE PACSystems RX7i - A-3.9 Timed Interrupt Performance

Appendix A. Performance Data
300 PACSystems* RX7i, RX3i and RSTi-EP CPU Reference Manual GFK-2222AD
A-3.9 Timed Interrupt Performance
The sweep impact of a timed interrupt invoking an empty program block or timed program measures the
overall time of fielding the interrupt, starting up the program or block, exiting the program or block, and
restarting the interrupted task. The minimum, average, and maximum interrupt period reflect the time
from when the first line of ladder logic is executed in the timed interrupt block.
Timed Interrupt Performance and Sweep Impact Times for a 0.001s Timed Interrupt
Block
Sweep Impact Item
CPU310
(µs)
CPU315
CPU320
(µs)
CPE010
(µs)
CPE020
(µs)
CPE030
(µs)
CPE040
(µs)
Timed interrupt sweep impact
87.3
26.2
88.6
28.0
31.2
23.3
Minimum interrupt period
Average interrupt period
Maximum interrupt period
908.3
1000.0
1081.2
969.8
1000.0
1030.8
951.4
1005.5
1056.6
946.0
999.7
1054.0
922.8
1000.0
1077.0
973.0
999.9
1026.9