An S7-1500 an Hour Out After the Clocks Change: RD_SYS_T, RD_LOC_T and the Time Zone
The batch record says the mixer started at 06:14 and the operator watched it start at 07:14, on the Sunday the clocks moved. The CPU 1516-3 PN/DP is keeping perfect time. What is wrong is that somebody wired RD_SYS_T into the timestamp and RD_SYS_T hands back the module time, which on this family is always … Read more