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Publication 1763-RM001C-EN-P - October 2009
Appendix
A
MicroLogix 1100 Memory Usage and Instruction
Execution Time
This appendix contains a complete list of the MicroLogix 1100
programming instructions. The list shows the memory usage and
instruction execution time for each instruction. Execution times using
indirect addressing and a scan time worksheet are also provided.
Programming
Instructions Memory
usage and Execution
Time
The tables below lists the execution times and memory usage for the
programming instructions. These values depend on whether you are
using
word
or
long word
as the data format.
MicroLogix 1100 Controllers -
Memory Usage and Instruction Execution Time for Programming Instructions
Programming Instruction
Instruction
Mnemonic
Word
Long Word
Execution Time in µs
Memory
Usage in
Words
Execution Time in µs
Memory
Usage in
Words
True
False
True
False
ASCII Test Buffer for Line
ABL
10.93
11.43
1.4
None
None
None
ASCII Number of Characters in
Buffer
ACB
10.93
11.43
1.4
None
None
None
Absolute Value
ABS
9.62
0.87
1.4
9.71
0.87
ASCII String to Integer
ACI
39.06
0.87
1.4
41.99
0.87
ASCII Clear Buffer
ACL
61.46
0.87
2.0
None
None
None
ASCII String Concatenate
ACN
50.15+0.11/
char
0.87
2.0
None
None
None
Add
ADD
13.44
0.87
2.0
13.34
0.87
ASCII String Extract
AEX
51.9+0.11/char. 0.87
2.6
None
None
None
ASCII Handshake Lines
AHL
14.56
15.06
2.6
None
None
None
ASCII Integer to String
AIC
48.96
0.87
1.4
57.34
0.87
And
AND
13.06
0.87
2.0
13.24
0.87
ASCII Read Characters
ARD
13.96
14.25
2.0
None
None
None
ASCII Read Line
ARL
13.96
14.25
2.0
None
None
None
ASCII String Search
ASC
45.18+1.62/
matching char.
0.87
2.6
None
None
None
ASCII String Compare
ASR
27.27+0.65/
matching char.
0.90
1.4
None
None
None
ASCII Write with Append
AWA
13.96
14.21
2.0
None
None
None
ASCII Write
AWT
13.99
14.21
2.0
None
None
None
Bit Shift Left
BSL
34.5 + 0.2/word 34.50
2.0
None
None
None
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