Publication 1762-RM001C-EN-P
B-2 MicroLogix 1500 Memory Usage and Instruction Execution Time
ASCII String Compare
(1)
ASR 0.0 7.5 + 3.5/
matching
char.
1.8 Long Word addressing level does not apply.
ASCII Write with Append
(1)
AWA 12.5 236 + 10.6/
char.
3.4
ASCII Write
(1)
AWT 12.8 237 + 10.6/
char.
3.4
Bit Shift Left BSL 1.4 26.4 + 1.06/
word
3.8
Bit Shift Right BSR 1.4 26.1 + 1.07/
word
3.8
Clear CLR 0.0 1.2 1.0 0.0 5.5 1.0
File Copy COP 0.0 15.9 + 0.67/
word
2.0 Long Word addressing level does not apply.
Count Down CTD 8.5 7.5 2.4
Count Up CTU 8.5 6.4 2.4
Decode 4-to-1 of 16 DCD 0.0 0.9 1.9
Divide DIV 0.0 10.3 2.0 0.0 36.7 3.5
Data Log DLG 6.7 67.5 + 11.8/
date stamp
+12.4/time
stamp
+9.1/word
logged
2.4 6.7 67.5 + 11.8/date
stamp
+12.4/time stamp
+16.2/long word
logged
2.4
Encode 1-of-16 to 4 ENC 0.0 6.8 1.5 Long Word addressing level does not apply.
Equal EQU 1.1 1.2 1.3 1.9 2.6 2.6
FIFO Load FFL 9.8 10.0 3.4 9.7 10.9 3.9
FIFO Unload FFU 9.7 27.7 + 0.65/
word
3.4 9.7 29.4 + 1.25/long
word
3.4
Fill File FLL 0.0 12.1 + 0.43/
word
2.0 0.0 12.3 + 0.8/long
word
2.5
Convert from BCD FRD 0.0 12.3 1.5 Long Word addressing level does not apply.
Greater Than or Equal To GEQ 1.1 1.2 1.3 2.5 2.6 2.9
Greater Than GRT 1.1 1.2 1.3 2.5 2.6 2.4
High-Speed Load HSL 0.0 39.7 7.3 0.0 40.3 7.8
Immediate Input with Mask IIM 0.0 22.5 3.0 Long Word addressing level does not apply.
Interrupt Subroutine INT 1.0 1.0 0.3
Immediate Output with Mask IOM 0.0 19.4 3.0
Jump JMP 0.0 1.0 0.5
Jump to Subroutine JSR 0.0 8.0 1.5
Label LBL 1.0 1.0 0.5
Less Than or Equal To LEQ 1.1 1.2 1.3 2.5 2.6 2.9
Less Than LES 1.1 1.2 1.3 2.5 2.6 2.9
Table B.1 MicroLogix 1500 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
False True False True
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