Rockwell Automation 1746-HSCE,D17466.5 High-Speed Counter Module - Manual (Page 37)

Publication 1746-UM006B-EN-P - August 2005
Module Operation 2-19
In the Range Mode, you use the counter ranges to specify the outputs
to be active within each range. Ranges may overlap. The ranges are
defined using the Starting and Ending Values (M0:e.10-33).
The Range Outputs fields (M0:e.3-8) contain the output patterns that
specify which outputs are active. Output patterns are applied to the
Output Status field (I:e.4/8-15) and output terminals when the count is
within the associated range (e.g., while in Range 2, the Range 2
Outputs are applied). When the count is within more than one range,
the output patterns of those ranges are combined (logically ORed).
Ranges are enabled using the Valid Ranges field (M0:e.2).
The ranges that are currently active are shown in the Ranges Active
word (I:e.6). Each range has a corresponding bit location. A 1
indicates the Accumulated Count is within the range.
Rate Mode
The Rate Mode operates much the same as the Range Mode except
the ranges are defined by the Rate Measurement value instead of the
Accumulated Count value. Ranges may overlap.
The 12 ranges are defined using the Starting and Ending Values
(M0:e.10-33). The Range Outputs fields (M0:e.3-8) contain the output
patterns that specify which outputs are active. Output patterns are
applied to the Output Status field (I:e.4/8-15) and output terminals
when the rate is within the associated range. When the rate is within
more than one range, the output patterns are combined (logically
ORed). Ranges are enabled using the Valid Ranges field (M0:e.2). The
ranges that are currently active are shown in the Ranges Active word
(I:e.6). Each range has a corresponding bit location. A 1 indicates the
Rate Measurement is within the range.