Control logix Plc Time Sync

GPS Module

Use 1756-TIME

The last reply was 2020. Oh btw, it seems AB discontinued 1756-TIME all together.

So the only option to sync directly to a real good PTP source is buy a GPS with PTP functionality like SEL 2488.

If there is one on the network a Stratix 5700 or 5400 can read a NPT server and be the time Grandmaster.

A SCADA Script should be able to read the PC (Server) time and then Write it to Tags in the PLC once every couple of hours, where you can update the wall clock. The PLC can then be a PTP time server for the network. This saves having to have RSLinx and Clock Sync Tool if you already have an OPC interface to the PLC

We just implemented the socket solution and that worked fairly well, not straightforward, but it works. I don't have tech connect so I can't search for it. But if you do:

RSLogix 5000 : AOI example for using sockets to read time from NTP or SNTP server

ID: QA49644 | Access Levels: TechConnect