Rockwell-automation 1503VC IntelliVAC Plus Contactor Control Module Manual de usuario descargar pdf (Pagina 41)

4-14 Description of Features

1503-UM054C-EN-P – June 2013

The ‘I Bx Line Undervoltage’ and ‘I Bx Line Undervoltage’ values

are included to allow a distinction for Undervoltage conditions

during different intervals of the contactor coil operation.

Real-Time Clock (RTC) The IntelliVAC Plus Unit contains an RTC with an external 3V

lithium battery (see Appendix D for battery replacement type) which

will maintain the correct time for a period of at least 20 years when

no external power is provided. The RTC will be set-up at the

factory, and provision shall be made to adjust the setting via the

DeviceNet interface (Time Zone Selection in Chapter 4).

The RTC will be used to support several features associated with the

IntelliVAC Plus as well as to provide the date and time information

over the DeviceNet interface. Time stamping of events will be

stored in the Event Log which resides in non-volatile memory. The

RTC is capable of a resolution as low as 10mS which will allow

more precise stamping of the events for better knowledge of when

events occurred, thus helping to define which event occurred first.

The time format that should be used is the 24 hour mode.

The RTC data will be settable on DeviceNet in the following

manner:

Valid Data Range

‘Year = ‘ ‘2000’ to ‘2099’

‘Month = ‘ ‘01’ to ‘12’

‘Date = ‘ ‘01’ to ‘31’

‘Hour = ‘ ‘01’ to ‘24’ (uses 24 hour time)

‘Minute = ‘ ‘00’ to ‘59’

‘Second = ‘ ‘00’ to ‘59’

’10milliSecond=‘‘00’to‘99’

The RTC data will be viewable on DeviceNet in the following

manner:

RTC Date: Month/Day/Year

RTC Time: Hour/Minute/Second/Millisecond

The ’10 millisecond’ parameter will only be used to time stamp

events and will not be viewable in the RTC data viewing mode.

Various operating transactions will be time stamped using the RTC

values in the following format: Year, Month, Date, Hour, Minute,

Second and 0.01 Second.

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Rockwell-automation 1503VC IntelliVAC Plus Contactor Control Module Manual de usuario Pagina 41