Appendix B-6 Execution Time On Combination Of Applicable Devices And Indexing; Appendix B-6-1 Basic Instruction (Ld/Ldi/And/Ani/Or/Ori) Execution Time; Appendix B-6-2 Applied Instruction Execution Time - Mitsubishi Electric FX3G SERIES Programming Manual
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FX
/FX
/FX
Series Programmable Controllers
3G
3U
3UC
Programming Manual - Basic & Applied Instruction Edition
Appendix B-6 Execution Time on Combination of Applicable Devices and
Indexing
In examples shown below for basic instructions, the MOV instruction and data comparison instructions, the instruction
execution time varies depending on the combination of target devices and absence/presence of indexing.
The combinations of target devices marked with "*1" and "*2" are handled as exceptions because high-speed
processing is adopted in the technique.
Appendix B-6-1
Basic instruction (LD/LDI/AND/ANI/OR/ORI) execution time
• FX
/FX
PLCs
3U
3UC
Specified device type
Bit device
Word device
• FX
PLCs do not support indexing of bit devices and contact instructions with bit specification of word devices in
3G
basic instructions.
Appendix B-6-2
Applied instruction execution time
1. MOV (FNC 12) instruction execution time
• FX
/FX
PLCs
3U
3UC
- MOV instruction (16-bit operation)
Command
S (source)
contact
KnX,KnY,KnM,KnS
T,C,D
R
ON
*2
U \G
K,H
KnX,KnY,KnM,KnS
T,C,D
R
OFF
*2
U \G
K,H
*1.
These combinations are handled as exceptions because high-speed processing is adopted in the technique.
*2.
When the instruction is executed for a BFM in a special function block/unit for FX
- DMOV instruction (32-bit instruction)
Command
S (source)
contact
KnX,KnY,KnM,KnS
T,C,D
R
ON
*2
U \G
K,H
KnX,KnY,KnM,KnS
T,C,D
R
OFF
*2
U \G
K,H
*1.
These combinations are handled as exceptions because high-speed processing is adopted in the technique.
*2.
When the instruction is executed for a BFM in a special function block/unit for FX
B-6 Execution Time on Combination of Applicable Devices and Indexing
Condition
Without indexing
With indexing
Bit specification
Without indexing (μs)
KnY,KnM,KnS
T,C,D
R
15.5
12.1
13.8
*1
12.1
10.4
0.64
13.8
10.4
12.1
131.8
128.5
130.2
*1
12.5
10.8
0.64
*1
0.32
*1
0.32
Without indexing (μs)
KnY,KnM,KnS
T,C,D
R
15.5
12.4
13.8
*1
12.4
10.7
1.48
13.8
10.7
12.2
199.8
195.9
197.4
*1
13.0
11.4
1.48
*1
1.48
*1
1.48
B Instruction Execution Time
Instruction execution time (μs)
D (destination)
With indexing (μs)
*2
KnY,KnM,KnS
U \G
212.9
18.6
209.7
16.6
211.3
16.9
377.9
133.1
210.1
15.4
0.325
/FX
3U
D (destination)
With indexing (μs)
*2
KnY,KnM,KnS
T,C,D
U \G
311.1
18.7
307.4
17.0
308.9
17.1
542.6
201.2
197.3
308.0
16.2
0.585
/FX
3U
0.065
11.9
8.8
*2
T,C,D
R
U \G
16.6
16.9
214.7
14.5
14.8
212.8
14.8
15.1
213.1
129.9
131.5
379.4
13.3
13.6
211.6
Series.
3UC
*2
R
U \G
17.0
17.1
313.0
15.2
15.3
310.5
15.3
15.4
310.6
198.8
544.0
14.4
14.5
309.7
Series.
3UC
929
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32
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38
A
B
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