Rockwell Automation 1769-L23E-QB1B_L23E-QBFC1B_L23-QBFC1B CompactLogix Packaged Controllers Quick Start and User Manual User Manual
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Publication IASIMP-QS010B-EN-P - October 2009
Chapter 3 Embedded I/O
Local:4:O.Range0To3[X].ToThisCounter_1
Use this tag value (along with the tag above - this is two-bit control field) to
indicate the counter to be used by range X in its range comparison.
Local:4:O.Range0To3[X].LoadDirectWrite
When this tag value is 0, the value in the Range0To3[X].HiLimOrDirWr tag is used
as the high limit for range X.
When this tag value transitions from 0 to 1, the value in the
Range0To3[X].HiLimOrDirWr tag is used as the value to load to counter X.
When this tag value is 1, the range high limit, low limit, and output control tag
values are not used and the range is essentially disabled.
Local:4:O.Range0To3[X].Invert
This tag value defines when range X is considered active.
When this tag value is at 0, the range is active when the selected counter's value
(that is, the ToThisCounter tag value) is at or between the range's high limit and low
limit.
When this tag value is at 0, the range is active when the selected counter's value
(indicated by the ToThisCounter tag value) is at or outside the range's high limit and
low limit.
(1)
This tag is applicable only to counters 1…3. It is not available for counter 0.
(2)
For example, this data might be at 1 (ON) if an internal error occurs in the HSC while the controller is in Run mode.
(3)
For more information about the range features of the HSC counter outputs, see the section titled
.
(4)
IMPORTANT: Because each output is available for use with each range, each output shared by one or more ranges is controlled through the use of a logical OR function in
HSC hardware to process the range results of the ranges that have designated the output to be under HSC range control. Any range result in the active state turns ON the
shared output. The shared output is turned OFF only when all range results that use the output are inactive.
HSC Tag Descriptions
Tag Name
Description