Allen-Bradley MicroLogix 1200 Reference Manual

Publication 1762-RM001C-EN-P
6-4 Using High-Speed Outputs
Momentary Logic Enable Example
In this example, the rung state is a momentary or transitional type of
input. This means that the false-to-true rung transition enables the PTO
instruction and then returns to a false state prior to the PTO instruction
completing its operation.
If a transitional input to the PTO instruction is used, the Done (DN) bit
turns on when the instruction completes, but only remains on until the
next time the PTO instruction is scanned in the user program. The
structure of the control program determines when the DN bit goes off. So,
to detect when the PTO instruction completes its output, you can monitor
the Done (DN), Idle (ID), or Normal Operation (NO) status bits.
Stage 0 1 2 3 4 5 6 7 8 9 10 11 12
Rung State
Sub-Elements: Relative Timing
Normal Operation/NO
Accelerate Status/AS
Run Status/RS
Decelerate Status/DS
Enable/EN
Done/DN
Idle/ID
Jog Pulse/JP
Jog Continuous/JC
Start of PTO Start of PTO

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)