General configuration bits, Oclo - overcurrent latch off (overcurrentlatchoff) – Rockwell Automation 1769-HSC Compact High Speed Counter Module User Manual

Page 72

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72

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013

Chapter 4

Module Configuration, Output, and Input Data

General Configuration Bits

These configuration bits apply to the 1769-HSC/B module and the CMX 5370
L2 packaged controller embedded HSC.

OCLO - Overcurrent Latch Off (OverCurrentLatchOff)

When set, this bit causes the module to make any overcurrent activity latch the
corresponding output off, simulating a physical fuse. When OCLO = 0, it
automatically resets. The rising edge of RBF resets the output.

36

Ctr3MaxCount

Counter 3 Maximum
Count

37

38

Ctr3MinCount

Counter 3 Minimum
Count

39

40

Ctr3Preset

Counter 3 Preset

41

42

Not used

Not used

43

Not used

Not used

44

Not used

Not used

45

Not used

Lin-
ear

Not used

Counter 3
Configuration Flags

Table 13 - Configuration Array - L23E Packaged Controller Embedded HSC (Continued)

Word

Bit

Function

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

Configuration Array Word 0

15

14

13

12

11

10

09

08

07

06

05

04

03

02

01

00

General Configuration Bits

Individual Counter
Reset Disable

(1)

Number of counters

Not used

PFE

Not used

Ctr
Reset

OCL
O

(1) For the 1769-HSC/B module only. Bit 12 is Counter 0 reset disable; Bit 13, Counter 1 reset disable; Bit 14, Counter 2 reset disable; Bit 15, Counter 3 reset disable.

Counter reset function = 0: reset enable (default), 1: reset disable. The 1769-HSC/A module does not use bits 12…15 in the configuration array. See

page 73

for details.

IMPORTANT

Do not set this bit while a counter or range is enabled (Ctr0En, Ctr1En,
Ctr2En, Ctr3En, or RangeEn set to 1). Attempting to do so will result in a
BadModConfigUpdate error.

See

page 120

for a list of prohibited settings.

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