Rockwell-automation T8110B/T8110 Trusted TMR Processor Manual de usuario Pagina 19

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Trusted
TM
TMR Processor T8110B/T8110
Issue 18 Feb 08 PD-T8110B/T8110 19
RACK 4: [TTMRP_3 – Real time clock input rack]
6 ANALOGUE inputs
Cha
nnel 1
Year
Channel 2
Month
Channel 3
Day of month
Channel 4
Hours
Channel 5
Minutes
Channel 6
Seconds
If the RTC read channel, Channel 2, of TTMRP_5 is set to TRUE, this input rack is refreshed every cycle to hold
the current date and time.
RACK 5: [TTMRP_4 – Real time clock program rack]
6 ANALOGUE outputs
Channel 1
Year
Channel 2
Month
Channel 3
Day of month
Channel 4
Hours
Channel 5
Minutes
Channel 6
Seconds
This output rack (above) allows the application writer to specify a new time and date to be written to the RTC by
the RTC control rack described below. It does not perform the write itself.
RACK 6 [TTMRP_5 – Real time clock control rack]
7 BOOLEAN outputs
Channel 1 RTC Write
TRUE = Set RTC if previously FALSE
FALSE = no associated action
Channel 2 RTC Read
TRUE = Refresh RTC on every subsequent cycle
False = Stop RTC input rack refreshes for every subsequent cycle.
Channel 3
Set year
Channel 4
Set month
Channel 5
Set day of month
Channel 6
Set hours
Chann
el 7
Set minutes
Channel 8
Set seconds
This output rack physically writes the date and time components assigned to the RTC program rack to the RTC.
The write operation is performed in the event of a rising edge on the RTC write channel, Channel 1. The set
channels, Channels 3 – 8, determine which date and time values to write, i.e. only date/time components that
have a corresponding TRUE set channel are written to the RTC. Other date/time components remain
unchanged. The date/time is only written to the RTC if the resulting date/time is valid, otherwise a run-time error
is generated. The RTC read channel, Channel 2, enables/disables refreshes of the RTC input rack on every
subsequent cycle.
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