Rockwell-automation T8110B/T8110 Trusted TMR Processor Uživatelský manuál stáhnout pdf (Strana 19)

Trusted

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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