Compactlogix synchronized real time clock

Narlin

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[FONT=&quot]I am making use of the real time clock in a 1769-L30ER (compact logix). In being nosey, I have seen that there is a web accessible interface to the PLC which, among other things, lists “1588 PTP (Time Sync)”, “Is synchronized to a master” False, and UTC time 21 Sep 2014 12:35:00.[/FONT]
[FONT=&quot] [/FONT]
[FONT=&quot]This PLC is connected to a LAN that has internet access. Can the PLC fetch a synchronized time? If so can someone tell me how to do that? I would like my user to not have to reset the clock occasionally just to keep it synchronized.[/FONT]
 
have a look in your software for "logix5000 clock update tool". get the later version of 2.5.2 if you think that looks alright. version 2.4.2. has a controllogix bug of time setting allowing for gmt offset which doesnt help much!!

I assume this will work with compactlogix
 
IEEE 1588 Precision Time Protocol is used by ControlLogix on local networks for services like CIP Motion and CIP Safety that require precise clocks.

It's not the same as Network Time Protocol or Simple Network Time Protocol, which is how the average desktop computer gets its time settings from the Internet. Logix controllers don't support that natively.

The Logix Clock Update Tool is a different thing altogether; it grabs the time from the host computer, and sends that to the Clock object in the controller on a schedule that you define.
 

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