Publication 1766-RM001A-EN-P - October 2008
Using High-Speed Outputs 155
PTOX Jog Frequency (JF)
The PTOX 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 1400 controller,
the data less than zero or greater than 100,000 generates a PTOX error.
PTOX Jog Pulse (JP)
The PTOX JP (Jog Pulse) bit is used to instruct the PTO sub-system to
generate a single pulse. The width is defined by the Jog Frequency
parameter in the PTOX function file. Jog Pulse operation is only possible
under the following conditions:
• PTO sub-system in idle
• Jog continuous not active
• Enable not active
The JP bit operates as follows:
• Set (1) - Instructs the PTO sub-system to generate a single Jog Pulse
• Cleared (0) - Arms the PTOX Jog Pulse sub-system
PTOX Jog Pulse Status (JPS)
The PTOX JPS (Jog Pulse Status) bit is controlled by the PTO sub-system.
It can be used by an input instruction on any rung within the control
program to detect when the PTO has generated a Jog Pulse.
The JPS bit operates as follows:
Sub-Element Description Address Data Format Range Type User Program Access
JF - Jog Frequency (Hz) PTOX:0.JF long word
(32-bit INT)
0…100,000 control read/write
Sub-Element
Description
Address Data Format Range Type User Program
Access
JP - Jog Pulse PTOX:0/JP bit 0 or 1 control read/write
Sub-Element
Description
Address Data
Format
Range Type User Program
Access
JPS - Jog Pulse Status PTOX:0/JPS bit 0 or 1 status read only
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