Instruction Execution Times - Omron CVM1D Operation Manual

Instruction Execution Times

6-4

Instruction Execution Times

Table: Instruction Execution Times
Instruction Words
LD 1 CIO 000000 to CIO 051115 for operand
2 CIO 051200 to CIO 255515 for operand
LD NOT 1 CIO 000000 to CIO 051115 for operand
2 CIO 051200 to CIO 255515 for operand
AND 1 CIO 000000 to CIO 051115 for operand
2 CIO 051200 to CIO 255515 for operand
AND NOT 1 CIO 000000 to CIO 051115 for operand
2 CIO 051200 to CIO 255515 for operand
OR 1 CIO 000000 to CIO 051115 for operand
2 CIO 051200 to CIO 255515 for operand
OR NOT 1 CIO 000000 to CIO 051115 for operand
2 CIO 051200 to CIO 255515 for operand
AND LD 1 ---
OR LD 1 ---
OUT 2 ---
OUT NOT 2 ---
This following table lists the execution times for CVM1D instructions. The maxi-
mum and minimum execution times and the conditions which cause them are
given where relevant. When "word" is referred to in the Conditions column, it im-
plies the content of any word except for indirectly addressed DM words. Indirect-
ly 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 de-
pending on the circumstances, i.e., whether it is in an interlocked program sec-
tion and the execution condition for IL is OFF, whether it is between JMP(004)
and JME(005) and the execution condition for JMP(004) is OFF, or whether it is
reset by an OFF execution condition. "R," "IL," and "JMP" are used to indicate
these three times.
The Words column provides the number of words required by the instruction in
program memory. Instructions can require between one and eight words in
memory. The length of an instruction depends not only on the instruction, but
also on the operands used for the instruction. If an index register is addressed
directly or a data register is used as an operand, the instruction will require one
word less than when specifying a word address for the operand. If a constant is
designated for an instruction that uses 2-word operands, the instruction will re-
quire one word more than when specifying a word address for the operand.
Conditions
µ
ON execution time ( s) OFF execution time (
0.13 0.13
0.25 0.25
j/i: +0.375 j/i: +0.625
!: +2.0 !:
0.13 0.13
0.25 0.25
j/i: +0.375 j/i: +0.375
!: +2.0 !:
0.13 0.13
0.25 0.25
j/i: +0.375 j/i: +0.375
!: +2.0 !:
0.13 0.13
0.25 0.25
j/i: +0.375 j/i: +0.375
!: +2.0 !:
0.13 0.13
0.25 0.25
j/i: +0.375 j/i: +0.375
!: +2.0 !:
0.13 0.13
0.25 0.25
j/i: +0.375 j/i: +0.375
!: +2.0 !:
0.13 0.13
0.13 0.13
0.38 0.38
!: ! +1.75 1 !: +1.75 !
Section 6-4
µ
s)
+2.0
+2.0
+2.0
+2.0
+2.0
+2.0
1
425