Spectrum Controls 1746sc-CTR4 - Manual (Page 36)

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SLC 500 ™ 50 KHz Counter / Flowmeter Module
Rate Limit / R Factor:
The rate limit function is used in the Normal operation mode. The Rate
Limit represents a target maximum value for rate. When the rate value is
greater then or equal to the rate limit value the Rate Limit flag bit will be
set.
In program scale factor mode an R Factor is stored in the module’s non-
volatile memory. If an R Factor is defined (not zero) then the data value
output for the counter value will be Rate / R Factor. A zero value must
be written to the R Factor to disable this feature.
Figure 4.8 - Rate Limit / R Factor Word
15 0 Address
Rate Limit / R Factor O:e.z
Refer to the applications section of the manual for limit and scale
examples.
Floating Point Rate Mode is activated by setting the Rate Factor to -1.
See Applendix A for information about the floating point mode.