Rockwell Automation 2080-LC50 Micro830 and Micro850 Programmable Controllers User Manual - Manual (Page 159)

Rockwell Automation Publication 2080-UM002F-EN-E - December 2013 143
Use the High-Speed Counter and Programmable Limit Switch Chapter 8
Mask for IH (HSC0.MH)
The MH (High Preset Mask) control bit is used to enable (allow) or disable (not
allow) a high preset interrupt from occurring. If this bit is clear (0), and a High
Preset Reached condition is detected by the HSC, the HSC user interrupt is not
executed.
This bit is controlled by the user program and retains its value through a power
cycle. It is up to the user program to set and clear this bit.
Mask for IL (HSC0.ML)
The ML (Low Preset Mask) control bit is used to enable (allow) or disable (not
allow) a low preset interrupt from occurring. If this bit is clear (0), and a Low
Preset Reached condition is detected by the HSC, the HSC user interrupt is not
executed.
This bit is controlled by the user program and retains its value through a power
cycle. It is up to the user program to set and clear this bit.
HSC Interrupt Status
Information User Interrupt Enable (HSC0.Enabled)
The Enabled bit is used to indicate HSC interrupt enable or disable status.
User Interrupt Executing (HSC0.EX)
The EX (User Interrupt Executing) bit is set (1) whenever the HSC sub-system
begins processing the HSC subroutine due to any of the following conditions:
Description Data Format HSC Modes (1)
(1) For Mode descriptions, see Count Down (HSCSTS.CountDownFlag) on page 129.
User Program Access
MH - High Preset Mask bit 0…9 read only
Description Data Format HSC Modes (1)
(1) For Mode descriptions, see Count Down (HSCSTS.CountDownFlag) on page 129.
User Program Access
ML - Low Preset Mask bit 2…9 read only
Description Data
Format HSC
Modes
(1)
(1) For Mode descriptions, see Count Down (HSCSTS.CountDownFlag) on page 129.
User Program
Access
HSC0.Enabled bit 0…9 read only
Description Data
Format HSC Modes (1)
(1) For Mode descriptions, see Count Down (HSCSTS.CountDownFlag) on page 129.
User Program
Access
HSC0.EX bit 0…9 read only