Allen-Bradley micrologix 1500 Reference Manual

Publication 1762-RM001C-EN-P
MicroLogix 1500 Memory Usage and Instruction Execution Time B-3
LIFO Load LFL 9.7 22.2 3.4 9.7 27.4 3.9
LIFO Unload LFU 9.7 25.6 3.4 9.7 27.4 3.4
Limit LIM 5.3 5.5 2.3 11.7 12.2 4.0
Master Control Reset MCR (Start) 0.8 0.8 1.0 Long Word addressing level does not apply.
MCR (End) 1.0 1.0 1.5
Masked Comparison for Equal MEQ 1.7 1.7 1.8 2.9 3.5 3.5
Move MOV 0.0 2.3 2.5 0.0 6.8 2.0
Message, Steady State MSG 6.0 17.0 2.9 Long Word addressing level does not apply.
Message, False-to-True
Transition for Reads
198.0
Message, False-to-True
Transition for Writes
226 + 1.4/
word
Multiply MUL 0.0 5.8 2.0 0.1 27.6 3.5
Masked Move MVM 0.0 7.2 2.0 0.0 10.0 3.0
Negate NEG 0.0 1.9 3.0 0.0 10.4 3.0
Not Equal NEQ 1.1 1.2 1.3 2.5 2.3 2.5
Not NOT 0.0 2.4 2.5 0.0 8.1 2.5
One Shot ONS 1.7 2.2 3.5 Long Word addressing level does not apply.
Or OR 0.0 2.0 2.8 0.0 7.9 3.0
One Shot Falling OSF 3.4 2.7 5.4 Long Word addressing level does not apply.
One Shot Rising OSR 2.8 3.2 5.4
Output Enable OTE 0.0 1.2 1.6
Output Latch OTL 0.0 0.9 0.6
Output Unlatch OTU 0.0 0.9 0.6
Proportional Integral Derivative PID 8.9 251.8 2.4
Pulse Train Output PTO 21.1 72.6 1.9
Pulse Width Modulation PWM 21.1 107.4 1.9
Reset Accumulator RAC Word addressing level does not
apply.
0.0 17.8 2.0
I/O Refresh REF 0.0 see p. B-6 0.5 Long Word addressing level does not apply.
Reset RES 0.0 4.8 1.0
Return RET 0.0 1.0 0.3
Retentive Timer On RTO 2.2 15.8 3.4
Subroutine SBR 1.0 1.0 0.3
Scale SCL 0.0 8.7 2.5
Scale with Parameters SCP 0.0 27.0 3.8 0.0 44.7 6.0
Sequencer Compare SQC 6.3 20.1 3.9 6.3 22.7 4.4
Sequencer Load SQL 6.3 19.1 3.4 6.3 21.1 3.9
Sequencer Output SQO 6.3 20.0 3.9 6.3 23.1 4.4
Square Root SQR 0.0 22.3 1.5 0.0 26.0 2.5
Selectable Timed Interrupt Start STS 0.0 50.7 1.0 Long Word addressing level does not apply.
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

Allen-Bradley micrologix 1500 Specifications

General

Processor Type	16-bit
Programming Language	Ladder Logic
Mounting	DIN rail or panel mount
Programming Software	RSLogix 500
Communication Ports	RS-232
Power Supply	24V DC
Operating Temperature	0°C to 55°C (32°F to 131°F)
Controller Type	Programmable Logic Controller (PLC)