Publication 1763-RM001C-EN-P - October 2009
152 Using High-Speed Outputs
Pulse Width Modulated
Function File Elements
Summary
The variables within each PWM element, along with what type of
behavior and access the control program has to those variables, are listed
individually below.
PWM Output (OUT)
The PWM OUT (Output) variable defines the physical output that the
PWM instruction controls. This variable is set within the function file
folder when the control program is written and cannot be set by the user
program. The outputs are defined as O0:0/2 or O0:0/3 as listed below:
• O0:0.0/2: PWM modulates output 2 of the embedded outputs.
Pulse Width Modulated Function File (PWM:0)
Element Description Address Data Format Range Type User Program
Access
For More
Information
OUT - PWM Output PWM:0.OUT word (INT) 2 or 3 status read only 152
DS - Decelerating Status PWM:0/DS bit 0 or 1 status read only 153
RS - PWM Run Status PWM:0/RS bit 0 or 1 status read only 153
AS - Accelerating Status PWM:0/AS bit 0 or 1 status read only 153
PP - Profile Parameter Select PWM:0/PP bit 0 or 1 control read/write 154
IS - PWM Idle Status PWM:0/IS bit 0 or 1 status read only 154
ED - PWM Error Detection PWM:0/ED bit 0 or 1 status read only 155
NS - PWM Normal Operation PWM:0/NS bit 0 or 1 status read only 155
EH - PWM Enable Hard Stop PWM:0/EH bit 0 or 1 control read/write 155
ES - PWM Enable Status PWM:0/ES bit 0 or 1 status read only 156
OF
(1)
(2)
- PWM Output Frequency
PWM:0.OF
word (INT)
(3)
0 to 20,000
(3)
control read/write 156
word (UINT)
(4)
0 to 40,000
(4)
OFS
(1)
- PWM Operating Frequency Status
PWM:0.OFS
word (INT)
(3)
0 to 20,000
(3)
status read only 157
word (UINT)
(4)
0 to 40,000
(4)
DC - PWM Duty Cycle PWM:0.DC word (INT) 1 to 1000 control read/write 157
DCS - PWM Duty Cycle Status PWM:0.DCS word (INT) 1 to 1000 status read only 157
ADD - Accel/Decel Delay PWM:0.ADD word (INT) 0 to 32,767 control read/write 158
ER - PWM Error Codes PWM:0.ER word (INT) -2 to 5 status read only 158
(1) OF and OFS are signed 16-bit (-32768~32768) variables in MicroLogix 1100 Series A controller, but they are unsigned 16-bit (0~65535) variables in MicroLogix 1100 Series
B controller.
(2) The variable range of OF, OFS, and JF is 0~20000 in MicroLogix 1100 Series A controller and it is 0~40000 in MicroLogix 1100 Series B controller.
(3) Applies only to MicroLogix 1100 Series A Controller
(4) Applies only to MicroLogix 1100 Series B Controller
Element
Description
Address Data
Format
Range Type User Program Access
OUT - PWM Output PWM:0.OUT word (INT) 2 or 3 status read only
efesotomasyon.com - Allen Bradley,Rockwell,plc,servo,drive
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