Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
92 Using the High-Speed Counter and Programmable Limit Switch
High-Speed Counter
Function File
Sub-Elements Summary
The HSC is comprised of 36 sub-elements. These sub-elements are either
bit, word, or long word structures that are used to provide control over
the HSC function, or provide HSC status information for use within the
control program. Each of the sub-elements and their respective functions
are described in this chapter. A summary of the sub-elements is provided
in the following table. All examples illustrate HSC0.
High-Speed Counter Function File (HSC:0 or HSC:1)
Sub-Element Description Address Data Format HSC
Modes
(1)
Function User Program
Access
For More
Information
PFN - Program File Number HSC:0.PFN word (INT) 0 to 7 control read only 93
ER - Error Code HSC:0.ER word (INT) 0 to 7 status read only 93
UIX - User Interrupt Executing HSC:0/UIX bit 0 to 7 status read only 97
UIE - User Interrupt Enable HSC:0/UIE bit 0 to 7 control read/write 97
UIL - User Interrupt Lost HSC:0/UIL bit 0 to 7 status read/write 98
UIP - User Interrupt Pending HSC:0/UIP bit 0 to 7 status read only 98
FE - Function Enabled HSC:0/FE bit 0 to 7 control read/write 94
AS - Auto Start HSC:0/AS bit 0 to 7 control read only 94
ED - Error Detected HSC:0/ED bit 0 to 7 status read only 94
CE - Counting Enabled HSC:0/CE bit 0 to 7 control read/write 96
SP - Set Parameters HSC:0/SP bit 0 to 7 control read/write 96
LPM - Low Preset Mask HSC:0/LPM bit 2 to 7 control read/write 99
HPM - High Preset Mask HSC:0/HPM bit 0 to 7 control read/write 101
UFM - Underflow Mask HSC:0/UFM bit 2 to 7 control read/write 102
OFM - Overflow Mask HSC:0/OFM bit 0 to 7 control read/write 105
LPI - Low Preset Interrupt HSC:0/LPI bit 2 to 7 status read/write 99
HPI - High Preset Interrupt HSC:0/HPI bit 0 to 7 status read/write 101
UFI - Underflow Interrupt HSC:0/UFI bit 2 to 7 status read/write 103
OFI - Overflow Interrupt HSC:0/OFI bit 0 to 7 status read/write 105
LPR - Low Preset Reached HSC:0/LPR bit 2 to 7 status read only 100
HPR - High Preset Reached HSC:0/HPR bit 2 to 7 status read only 102
DIR - Count Direction HSC:0/DIR bit 0 to 7 status read only 106
UF - Underflow HSC:0/UF bit 0 to 7 status read/write 102
OF - Overflow HSC:0/OF bit 0 to 7 status read/write 103
MD - Mode Done HSC:0/MD bit 0 or 1 status read/write 106
CD - Count Down HSC:0/CD bit 2 to 7 status read only 106
CU - Count Up HSC:0/CU bit 0 to 7 status read only 107
MOD - HSC Mode HSC:0.MOD word (INT) 0 to 7 control read only 107
ACC - Accumulator HSC:0.ACC long word (32-bit INT) 0 to 7 control read/write 113
HIP - High Preset HSC:0.HIP long word (32-bit INT) 0 to 7 control read/write 113
LOP - Low Preset HSC:0.LOP long word (32-bit INT) 2 to 7 control read/write 113
OVF - Overflow HSC:0.OVF long word (32-bit INT) 0 to 7 control read/write 114
UNF - Underflow HSC:0.UNF long word (32-bit INT) 2 to 7 control read/write 114
OMB - Output Mask Bits HSC:0.OMB word (16-bit binary) 0 to 7 control read only 115
HPO - High Preset Output HSC:0.HPO word (16-bit binary) 0 to 7 control read/write 117
LPO - Low Preset Output HSC:0.LPO word (16-bit binary) 2 to 7 control read/write 117
(1) For Mode descriptions, see HSC Mode (MOD) on page 107.
n/a = not applicable
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Allen-Bradley MicroLogix 1100 Specifications

General

Brand	Allen-Bradley
Model	MicroLogix 1100
Category	Controller
Language	English