Pulse Width Modulated Function File Elements Summary - Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

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152 Using High-Speed Outputs
Pulse Width Modulated
Function File Elements
Summary
Pulse Width Modulated Function File (PWM:0)
Element Description
OUT - PWM Output
DS - Decelerating Status
RS - PWM Run Status
AS - Accelerating Status
PP - Profile Parameter Select
IS - PWM Idle Status
ED - PWM Error Detection
NS - PWM Normal Operation
EH - PWM Enable Hard Stop
ES - PWM Enable Status
(1) (2)
OF - PWM Output Frequency
(1)
OFS - PWM Operating Frequency Status
DC - PWM Duty Cycle
DCS - PWM Duty Cycle Status
ADD - Accel/Decel Delay
ER - PWM Error Codes
(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
Publication 1763-RM001C-EN-P - October 2009
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.
Address Data Format Range
PWM:0.OUT word (INT)
PWM:0/DS bit
PWM:0/RS bit
PWM:0/AS bit
PWM:0/PP bit
PWM:0/IS bit
PWM:0/ED bit
PWM:0/NS bit
PWM:0/EH bit
PWM:0/ES bit
PWM:0.OF
word (INT)
word (UINT)
PWM:0.OFS
word (INT)
word (UINT)
PWM:0.DC word (INT)
PWM:0.DCS word (INT)
PWM:0.ADD word (INT)
PWM:0.ER word (INT)
PWM Output (OUT)
Element Address
Description
OUT - PWM Output PWM:0.OUT word (INT)
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.
Type User Program
Access
2 or 3 status read only
0 or 1 status read only
0 or 1 status read only
0 or 1 status read only
0 or 1 control read/write
0 or 1 status read only
0 or 1 status read only
0 or 1 status read only
0 or 1 control read/write
0 or 1 status read only
(3) (3) control read/write
0 to 20,000
(4) (4)
0 to 40,000
status read only
(3) (3)
0 to 20,000
(4) (4)
0 to 40,000
1 to 1000 control read/write
1 to 1000 status read only
0 to 32,767 control read/write
-2 to 5 status read only
Data Range Type
Format
2 or 3 status
For More
Information
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User Program Access
read only