Allen-Bradley Micro830, Руководство пользователя

Страница: 168 / 354

154
Rockwell Automation Publication 2080-UM002K-EN-E - March 2019
Chapter 8 Use the High-Speed Counter and Programmable Limit Switch
•
High Preset Interrupt occurs
•
Overflow Interrupt occurs
High Preset Interrupt (HSCSTS.HPCauseInter)
The High Preset Interrupt status bit is set (1) when the HSC accumulator
reaches the high preset value and the HSC interrupt is triggered. This bit can be
used in the control program to identify that the high preset condition caused the
HSC interrupt. If the control program needs to perform any specific control
action based on the high preset, this bit is used as conditional logic.
This bit can be cleared (0) by the control program and is also cleared by the HSC
sub-system whenever these conditions are detected:
•
Low Preset Interrupt occurs
•
Underflow Interrupt occurs
•
Overflow Interrupt occurs
Low Preset Interrupt (HSCSTS.LPCauseInter)
The Low Preset Interrupt status bit is set (1) when the HSC accumulator reaches
the low preset value and the HSC interrupt has been triggered. This bit can be
used in the control program to identify that the low preset condition caused the
HSC interrupt. If the control program needs to perform any specific control
action based on the low preset, this bit would be used as conditional logic.
This bit can be cleared (0) by the control program and is also be cleared by the
HSC sub-system whenever these conditions are detected:
•
High Preset Interrupt occurs
•
Underflow Interrupt occurs
•
Overflow Interrupt occurs
Programmable Limit Switch Position (HSCSTS.PLSPosition)
Description Data Format HSC Modes
(1)
(1) For Mode descriptions, see HSC Mode (HSCAPP.HSCMode) on page 140 .
User Program Access
HSCSTS.HPCauseInter bit 0…9 read/write
Description Data Format HSC Modes
(1)
(1) For Mode descriptions, see HSC Mode (HSCAPP.HSCMode) on page 140 .
User Program Access
HSCSTS.LPCauseInter bit 2…9 read/write
Description Data Format HSC Modes
(1)
(1) For Mode descriptions, see HSC Mode (HSCAPP.HSCMode) on page 140 .
User Program Access
HSCSTS.PLSPosition Word (INT) 0…9 read only