Posted 18 Apr 2017 Hi All, On our plant, we are using one Rockwell PLC model 5573 with HMI(Allen Bradley 1500P). I am automation engineer but I did not work on the Rockwell PLC. Now I am planning to install the GPS clock on our plant. And I want clock will synchronize our Rockwell plc as well. Could someone advice what is the best option for this model to do the time synchronization. Thanks in Advance, Warm Regards/Waqar Share this post Link to post Share on other sites
Posted 18 Apr 2017 In order to modify the PLC program, you will need Studio5000 software with RSLinx setup on your development PC. No PLC programming software, no PLC program changes. PLC master date/time registers can be manipulated (to synchronize to an external clock) via use of the SSV (Set System Variable) function block. Attached is a similar example in which the HMI was used as the master time clock, but the PLC modifications will be the same. Work Instruction - Allen-Bradley Synchronize PLC date-time with PanelViewPlus.doc Share this post Link to post Share on other sites
Posted 19 Apr 2017 I'd suggest you just use the "Logix 5000 Clock Update Tool" to set a schedule, and sync the PLC's to a computer that updates from the GPS. Much simpler, and no program changes required. 1 person likes this Share this post Link to post Share on other sites
