PACSystemsâ„¢ RX3i and RSTi-EP CPU Reference Manual Appendix A
GFK-2222AK October 2019
Serial I/O, SNP & RTU Protocols 197
A-2.2 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:
â–ª Boolean Operation: this includes coil and contact operation (LD only).
â–ª Word Operation: applies to MOVE instruction for all basic types.
â–ª Fixed-point math covers all math operations which are not floating point (INT, UINT,
DINT types).
â–ª Floating-point math covers all math operations which are not fixed point (REAL and
LREAL types).