Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
Using High-Speed Outputs 145
PTO Jog Frequency (JF)
The PTO JF (Jog Frequency) variable defines the frequency of the PTO
output during all Jog phases. This value is typically determined by the
type of device that is being driven, the mechanics of the application, or
the device/components being moved). In the MicroLogix 1100 Series A
controller, the data less than zero or greater than 20,000 generates a PTO
error. However, in the MicroLogix 1100 Series B controller, the data less
than zero or greater than 40,000 generates a PTO error.
Normal Ramp
Function
Ramp Function
Decel After CS
is Set
Accel
Controlled
Stop (CS) Set
Decel
Sub-Element Description Address Data Format Range Type User Program Access Controller
Series
JF - Jog Frequency (Hz) PTO:0.JF word (INT) 0 to 20,000 control read/write A
word (UINT) 0 to 40,000 B
ATTENTION
In order to use 40kHz PTO and PWM with a prior version
of RSLogix 500 (version 7.10 or lower), variable type
change process is required (unsigned integer to signed
integer). Refer to PTO and PWM function file changes in
Series B Controller on page 569 in Appendix F How to Use
40kHz PTO/PWM of MicroLogix 1100 Series B Controller
for more information.
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Allen-Bradley MicroLogix 1100 Specifications

General

Brand	Allen-Bradley
Model	MicroLogix 1100
Category	Controller
Language	English