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Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Allen-Bradley MicroLogix 1100
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127 Publication 1763-RM001C-EN-P - October 2009
Chapter
5
Using High-Speed Outputs
The high-speed output instructions allow you to control and monitor the
PTO and PWM functions which control the physical high-speed outputs.
PTO - Pulse Train Output
Instruction Type: output
Instruction Used To: Page
PTO - Pulse Train Output Generate stepper pulses 128
PWM - Pulse Width Modulation Generate PWM output 150
ATTENTION
MicroLogix 1100 Series A controller does not support
40kHz PTO and PWM. Only MicroLogix 1100 Series B
controller supports 40kHz PTO and PWM with any
version of RSLogix500. Refer to Appendix F How to Use
40kHz PTO/PWM of MicroLogix 1100 Series B Controller
for more information.
PTO
Pulse Train Output
PTO Number 0
PTO
IMPORTANT
The PTO function can only be used with the controller’s
embedded I/O. It cannot be used with expansion I/O
modules.
IMPORTANT
The PTO instruction should only be used with MicroLogix
1100 BBB units. Relay outputs are not capable of
performing very high-speed operations.
Execution Time for the PTO Instruction
Controller When Rung Is:
True False
MicroLogix 1100 51.28 μs 31.94 μs
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Allen-Bradley MicroLogix 1100 Specifications

General IconGeneral
Processor32-bit
Programming SoftwareRSLogix 500
MountingDIN rail or panel mount
Power Supply24V DC
TypeCompact PLC
Digital Inputs12
Digital Outputs8
Analog Inputs4 (depending on model)
Analog OutputsOptional with expansion module
Programming LanguageLadder Logic
Operating Temperature0 to 55 °C (32 to 131 °F)
SeriesMicroLogix

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