Spectrum-controls 1746sc-CTR4 Manuel d'utilisateur télécharger pdf (Page 36)

36 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

Address

Rate Limit / R FactorO: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.

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Spectrum-controls 1746sc-CTR4 Manuel d'utilisateur Page 36