Rx3I & Rsti-Ep Instruction Times - GE PACSystems RX7i Reference Manual

A-2.3 RX3i & RSTi-EP Instruction Times
The following tables are intended to provide guidance for expected instruction execution times when
using Ladder Diagram (LD) and C Language. For simplicity, the instructions are grouped as follows:
•
Boolean Operation: this includes coil and contact operation (LD only).
•
Word Operation: applies to MOVE instruction for all basic types.
•
Fixed-point math covers all math operations which are not floating point (INT, UINT, DINT types).
•
Floating-point math covers all math operations which are not fixed point (REAL and LREAL types).
Type of Operation
Boolean Operation
Word Operation
Fixed Point Math
Floating Point Math
Type of Operation
Boolean Operation
Word Operation
Fixed Point Math
Floating Point Math
GFK-2222AD
Execution Times for LD Instructions
CPE100/CPE115 CPE310/CPE305/CPE302
127ns
1276ns
1323ns
1328ns
Execution Times for C Instructions (Raw processor power)
CPE100/CPE115 CPE310/CPE305/CPE302
N/A
N/A
N/A
N/A
April 2018
Appendix A. Performance Data
CPU320
87ns 46ns
722ns 363ns
778ns 413ns
771ns 420ns
CPU320
N/A N/A
2ns 3ns
20ns 3ns
24ns 9ns
CPE330 CPE400
46ns 46ns
275ns 363ns
405ns 413ns
410ns 420ns
CPE330 CPE400
N/A N/A
2ns 3ns
3ns 3ns
6ns 7ns
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