High-Speed Counter (HSC) instructions Chapter 14
Rockwell Automation Publication 2080-RM001D-EN-E - February 2015 339
User Interrupt Pending (HSC0.PE)
Parameter Data format HSC modes User program access
HSCO.PE bit 0...9 read only
The PE (User Interrupt Pending) status flag indicates an interrupt is pending. The
PE status bit can be monitored or used for logic purposes in the control program if
you need to determine when a subroutine cannot be immediately executed. The
PE bit is maintained by the controller and is set and cleared automatically.
User Interrupt Lost (HSC0.LS)
Parameter Data format HSC modes User program access
HSCO.LS bit 0...9 read only
The LS (User Interrupt Lost) is a status flag that indicates an interrupt has been
lost. The controller can process 1 active user interrupt condition and maintain 1
pending user interrupt condition before it sets the lost bit.
The LS bit is set by the controller. It is up to the control program to use and
monitor a lost condition.
HSC Interrupt parameters
The HSC interrupt parameters are used to configure the start and mask options.
Auto Start (HSC0.AS)
Parameter Data format HSC modes User program access
HSCO.AS bit 0...9 read only
Auto Start is configured with the programming device and stored as part of the
user program. The auto start bit defines if the HSC interrupt function
automatically starts whenever the controller enters any run or test mode.
Overflow Mask (HSC0.MV)
Parameter Data format HSC modes User program access
HSCO.MV bit 0...9 read only
The MV (Overflow Mask) control bit is used to enable (allow) or disable (not
allow) an overflow interrupt from occurring. If the bit is clear (0), and an
Overflow Reached condition is detected by the HSC, the HSC user interrupt is
not executed.
To Next Page
Loading...
