Allen-Bradley Micro800 General Instructions Manual page 540

Chapter 18
Process control instructions
Parameter
EN
On
Freq
DutyCycle
ChType
ChSlot
ChNum
Sts
ENO
540
PWM arguments
Parameter type Data Description
type
Input BOOL Function block enable. This level is FB triggered.
When EN = TRUE, Sts is updated. PWM is made active or inactive depending on the On input
parameter and valid configuration.
When EN = FALSE, Sts is only updated. PWM state (active or inactive) is not affected..
Input BOOL Turns the PWM output On/Active or Off/Inactive.
TRUE = PWM output is made active or continues to be active with latest valid configuration.
Output LED is ON when PWM is active, even if duty cycle is set to 0%.
FALSE = PWM output is made inactive but only if configuration is also valid.
Input UDINT Frequency in Hz
• 1 – 100000
Input UINT Duty Cycle
• 0 – 1000 (0% - 100%)
Input USINT Channel Type
• 0 – Embedded
• 1 – Plugin
• 2 – Expansion
Input UINT Channel Slot
• 0 – Embedded
Input UINT Channel Number
• 0 – PWM CH0
Output UINT Function block execution status.
00 - Function block not enabled (no operation.)
01 - PWM configuration successful.
02 - Invalid duty cycle.
03 - Invalid Frequency.
04 - Invalid Channel Type.
05 - Invalid Channel Slot.
06 - Invalid Channel Number.
07 - Invalid Catalog. PWM feature is not supported in the catalog being used.
Output BOOL Enable out.
Applies only to LD programs.
Rockwell Automation Publication 2080-RM001D-EN-E - February 2015