Count up (hscsts.countupflag), Count down (hscsts.countdownflag), Mode done (hscsts.mode1done) – Rockwell Automation 2080-LC50 Micro830 and Micro850 Programmable Controllers User Manual User Manual

Page 145: Overflow (hscsts.ovf)

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Rockwell Automation Publication 2080-UM002F-EN-E - December 2013

129

Use the High-Speed Counter and Programmable Limit Switch Chapter 8

Count Up (HSCSTS.CountUpFlag)

The Count Up bit is used with all of the HSCs (modes 0…9). If the
HSCSTS.CountEnable bit is set, the Count Up bit is set (1). If the
HSCSTS.CountEnable is cleared, the Count Up bit is cleared (0).

Count Down (HSCSTS.CountDownFlag)

The Count Down bit is used with the bidirectional counters (modes 2…9). If the
HSCSTS.CountEnable bit is set, the Count Down bit is set (1). If the
HSCSTS.CountEnable bit is clear, the Count Down bit is cleared (0).

Mode Done (HSCSTS.Mode1Done)

The Mode Done status flag is set (1) by the HSC sub-system when the HSC is
configured for Mode 0 or Mode 1 behavior, and the accumulator counts up to the
High Preset.

Overflow (HSCSTS.OVF)

The HSCSTS.OVF status flag is set (1) by the HSC sub-system whenever the
accumulated value (HSCSTS.Accumulator) has counted through the overflow
variable (HSCAPP.OFSetting).

This bit is transitional and is set by the HSC sub-system. It is up to the control
program to utilize, track if necessary, and clear (0) the overflow condition.

Overflow conditions do not generate a controller fault.

Description

Data Format

HSC Modes

(1)

(1) For Mode descriptions, see

HSC Mode (HSCAPP.HSCMode) on page 118

.

User Program Access

HSCSTS.CountUpFlag

bit

0…9

read only

Description

Data Format

HSC Modes

(1)

(1) For Mode descriptions, see

HSC Mode (HSCAPP.HSCMode) on page 118

.

User Program Access

SCSTS.CountDownFlag

bit

2…9

read only

Description

Data Format

HSC Modes

(1)

(1) For Mode descriptions, see

HSC Mode (HSCAPP.HSCMode) on page 118

.

User Program Access

HSCSTS.Mode1Done

bit

0 or 1

read/write

Description

Data Format

HSC Modes

(1)

(1) For Mode descriptions, see

HSC Mode (HSCAPP.HSCMode) on page 118

.

User Program Access

HSCSTS.OVF

bit

0…9

read/write

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