Programming Instructions Appendix B
284
Instruction Execution Times
The following table lists the execution times for all instructions that are available for the C200H. The maximum
and minimum execution times and the conditions which cause them are given where relevant. When “word” is
referred to in the Conditions column, it implies the content of any word except for indirectly addressed DM
words. Indirectly addressed DM words, which create longer execution times when used, are indicated by
“*DM”.
Execution times for most instructions depend on whether they are executed with an ON or an OFF execution
condition. Exceptions are the ladder diagram instructions OUT and OUT NOT, which require the same time
regardless of the execution condition. The OFF execution time for an instruction can also vary depending on
the circumstances, i.e., whether it is in an interlocked program section and the execution condition for IL is
OFF, whether it is between JMP(04) 00 and JME(05) 00 and the execution condition for JMP(04) 00 is OFF, or
whether it is reset by an OFF execution condition. “R”, “IL”, and “JMP” are used to indicate these three times.
All execution times are given in microseconds unless otherwise noted.
Instruction Conditions
ON execution time (µs) OFF execution time (µs)
LD --- 0.75 1.5
LD NOT --- 0.75 1.5
AND --- 0.75 1.5
AND NOT --- 0.75 1.5
OR --- 0.75 1.5
OR NOT --- 0.75 1.5
AND LD --- 0.75 1.5
OR LD --- 0.75 1.5
OUT --- 1.13 2.25
OUT NOT --- 1.13 2.25
TIM Constant for SV 2.25 R: 2.25
IL: 2.25
JMP: 2.25
*DM for SV
R: 160
IL: 2.25
JMP: 2.25
CNT Constant for SV 2.25 R: 2.25
IL: 2.25
JMP: 2.25
*DM for SV
R: 160
IL: 2.25
JMP: 2.25
NOP(00) --- 0.75 ---
END(01) --- 80 ---
IL(02) --- 59 35
ILC(03) --- 44 35
JMP(04) --- 69 35
JME(05) --- 47 35
FAL(06) 01 to 99 --- 236 2.25
FAL(06) 00 --- 182 2.25
FALS(07) --- 4.28 ms 2.25
STEP(08) --- 95 2.25
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