Allen-Bradley MicroLogix 1200 Reference Manual

Publication 1762-RM001C-EN-P
MicroLogix 1200 Memory Usage and Instruction Execution Time A-3
Message, Steady State MSG 6.0 20.0 2.9 Long Word addressing level does not apply.
Message, False-to-True
Transition for Reads
230.0
Message, False-to-True
Transition for Writes
264 + 1.6/
word
Multiply MUL 0.0 6.8 2.0 0.0 31.9 3.5
Masked Move MVM 0.0 7.8 2.0 0.0 11.8 3.0
Negate NEG 0.0 2.9 3.0 0.0 12.1 3.0
Not Equal NEQ 1.1 1.3 1.3 2.7 2.5 2.5
Not NOT 0.0 2.4 2.5 0.0 9.2 2.5
One Shot ONS 1.9 2.6 3.5 Long Word addressing level does not apply.
Or OR 0.0 2.2 2.8 0.0 9.2 3.0
One Shot Falling OSF 3.7 2.8 5.4 Long Word addressing level does not apply.
One Shot Rising OSR 3.0 3.4 5.4
Output Enable OTE 1.1 1.4 1.6
Output Latch OTL 0.0 1.0 0.6
Output Unlatch OTU 0.0 1.1 0.6
Proportional Integral Derivative PID 11.0 295.8 2.4
Pulse Train Output
(1)
PTO 24.4 85.6 1.9
Pulse Width Modulation
(1)
PWM 24.7 126.6 1.9
Reset Accumulator RAC Word addressing level does not
apply.
0.0 21.2 2.0
I/O Refresh REF 0.0 see p. A-7 0.5 Long Word addressing level does not apply.
Reset RES 0.0 5.9 1.0
Return RET 0.0 1.0 0.3
Retentive Timer On RTO 2.4 18.0 3.4
Subroutine SBR 1.0 1.0 0.3
Scale SCL 0.0 10.5 2.5
Scale with Parameters SCP 0.0 31.5 3.8 0.0 52.2 6.0
Sequencer Compare SQC 7.1 23.5 3.9 7.1 26.3 4.4
Sequencer Load SQL 7.0 21.7 3.4 7.1 24.3 3.9
Sequencer Output SQO 7.1 23.2 3.9 7.1 26.6 4.4
Square Root SQR 0.0 26.0 1.5 0.0 30.9 2.5
Selectable Timed Interrupt Start STS 0.0 57.5 1.0 Long Word addressing level does not apply.
Subtract SUB 0.0 3.4 3.3 0.0 12.9 3.5
Suspend SUS n/a n/a 1.5 Long Word addressing level does not apply.
Service Communications SVC 0.0 208 + 1.6/
word
(2)
1.0
Swap
(1)
SWP 0.0 13.7 + 2.2/
swapped
word
1.5
Temporary End TND 0.0 0.9 0.5
Table A.1 MicroLogix 1200 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 1200 Specifications

General

Series	MicroLogix 1200
Type	Programmable Logic Controller (PLC)
Mounting	DIN rail or panel mount
Programming Language	Ladder Logic
Programming Software	RSLogix 500
I/O Points	Up to 40
Communication Ports	RS-232, RS-485
Memory	6 KB user memory
Power Supply	24V DC or 120/240V AC
Expansion	Supports expansion I/O modules
Operating Temperature	0°C to 55°C (32°F to 131°F)
Dimensions	90 mm x 110 mm
Weight	0.5 kg (1.1 lbs)