Rockwell-automation 1769-HSC Compact High Speed Counter Module Manual de usuario descargar pdf (Pagina 107)

Rockwell Automation Publication 1769-UM006E-EN-P - July 2013 107

Module Configuration, Output, and Input Data Chapter 4

IDW - Invalid Direct Write (Ctr[0].InvalidDirectWrite to

Ctr[3].InvalidDirectWrite)

This bit is set when the Range12To15[n].HiLimOrDirWr is invalid. (For

example, if CtrnMaxCount < Range12To15[n].HiLimOrDirWr or

Range12To15[n].HiLimOrDirWr < CtrnMinCount.)

When this error occurs, the entire output array is rejected until a valid

configuration is detected.

IC - Invalid Counter (Ctr[1].InvalidCounter to Ctr[3].Invalid Counter)

When set (1) this bit indicates that an invalid control bit is set for the counter.

Depending on the value of NumberOfCounters, the following errors will occur:

• If NumberOfCounters < 1, then setting one of the control bits for

Counter 1 will result in input error flag Ctr[1].InvalidCounter.

• If NumberOfCounters <2, then setting one of the control bits for

Counter 2 will result in input error flag Ctr[2].InvalidCounter.

• If NumberOfCounters <3, then setting one of the control bits for

Counter 3 will result in input error flag Ctr[3].InvalidCounter.

When this error occurs, the entire output array is rejected until an output array

that does not have this error is sent.

The control bits are shown on page 92.

RV - Rate Valid (Ctr[0].RateValid to Ctr[3].RateValid)

This bit is set (1) when the rate value indicated in Ctr[n].CurrentRate is current.

When this bit is reset (0), Ctr[n].CurrentRate is frozen at the last known good

value.

This bit is reset when the Ctr[n].Overflow or Ctr[n].Underflow bits have been

set during the last CtrnCyclicRateUpdateTime period.

See

page 34 for more Rate Valid reset conditions.

IMPORTANT

For the L23E packaged controllers Embedded HSC, the ranges referred to

in this section are numbered 0…3 instead of 12…15. The ranges in this

section apply to only the 1769-HSC module and the CMX 5370 L2

packaged controllers Embedded HSC.

IMPORTANT

For the L23E packaged controllers Embedded HSC, the RV value does not

apply; they are not used and are always set to 0. The RV values in this

section apply to the 1769-HSC module and the CMX 5370 L2 packaged

controllers Embedded HSC.

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Rockwell-automation 1769-HSC Compact High Speed Counter Module Manual de usuario Pagina 107