Hi! Yes, I am using the default historian.
I’m measuring data loss by exporting my data on HistorianView to a csv file. I noticed that after 600ms, it stops saving and only saves data again at the start of a new second, as seen in an example below:
08-Oct-2018 15:00:53.000,128.8942,128.8453,129.0331
08-Oct-2018 15:00:53.008,128.8853,128.8568,129.0379
08-Oct-2018 15:00:53.016,128.8782,128.8503,129.0591
08-Oct-2018 15:00:53.025,128.9199,128.8182,129.0483
08-Oct-2018 15:00:53.033,128.9242,128.8158,129.029
08-Oct-2018 15:00:53.041,128.924,128.8218,129.0215
08-Oct-2018 15:00:53.050,128.9191,128.8407,129.0215
08-Oct-2018 15:00:53.058,128.9129,128.847,129.016
08-Oct-2018 15:00:53.066,128.8969,128.8528,129.0075
08-Oct-2018 15:00:53.075,128.9134,128.8156,129.0002
08-Oct-2018 15:00:53.083,128.9127,128.8042,129.0035
08-Oct-2018 15:00:53.091,128.9182,128.7898,129.0078
08-Oct-2018 15:00:53.100,128.8956,128.7947,128.994
08-Oct-2018 15:00:53.108,128.8757,128.7943,128.9948
08-Oct-2018 15:00:53.116,128.8401,128.7671,128.9667
08-Oct-2018 15:00:53.125,128.8291,128.7343,128.9433
08-Oct-2018 15:00:53.133,128.8285,128.7304,128.9412
08-Oct-2018 15:00:53.141,128.8267,128.721,128.9515
08-Oct-2018 15:00:53.150,128.8284,128.7155,128.9371
08-Oct-2018 15:00:53.158,128.8184,128.7268,128.9386
08-Oct-2018 15:00:53.166,128.8151,128.7549,128.9575
08-Oct-2018 15:00:53.175,128.8336,128.7455,128.9597
08-Oct-2018 15:00:53.183,128.8568,128.7428,128.96
08-Oct-2018 15:00:53.191,128.8597,128.7498,128.9674
08-Oct-2018 15:00:53.200,128.8737,128.7442,128.9762
08-Oct-2018 15:00:53.208,128.8763,128.7555,128.9786
08-Oct-2018 15:00:53.216,128.8649,128.777,128.9686
08-Oct-2018 15:00:53.225,128.8671,128.7722,128.9753
08-Oct-2018 15:00:53.233,128.8741,128.7598,128.9725
08-Oct-2018 15:00:53.241,128.8541,128.7522,128.9545
08-Oct-2018 15:00:53.250,128.8414,128.734,128.9502
08-Oct-2018 15:00:53.258,128.8297,128.7335,128.9546
08-Oct-2018 15:00:53.266,128.8219,128.7473,128.9718
08-Oct-2018 15:00:53.275,128.8231,128.7401,128.9689
08-Oct-2018 15:00:53.283,128.8228,128.7338,128.9607
08-Oct-2018 15:00:53.291,128.8116,128.735,128.9527
08-Oct-2018 15:00:53.300,128.8229,128.7312,128.9612
08-Oct-2018 15:00:53.308,128.8234,128.738,128.9713
08-Oct-2018 15:00:53.316,128.8146,128.7371,128.9787
08-Oct-2018 15:00:53.325,128.8219,128.7153,128.9807
08-Oct-2018 15:00:53.333,128.8312,128.7215,128.9619
08-Oct-2018 15:00:53.341,128.8173,128.7215,128.957
08-Oct-2018 15:00:53.350,128.8144,128.7092,128.9733
08-Oct-2018 15:00:53.358,128.8213,128.708,128.96
08-Oct-2018 15:00:53.366,128.8111,128.7129,128.9596
08-Oct-2018 15:00:53.375,128.8096,128.7026,128.9577
08-Oct-2018 15:00:53.383,128.8191,128.6845,128.9464
08-Oct-2018 15:00:53.391,128.8208,128.6961,128.9542
08-Oct-2018 15:00:53.400,128.8052,128.7061,128.948
08-Oct-2018 15:00:53.408,128.8045,128.6925,128.9411
08-Oct-2018 15:00:53.416,128.8024,128.691,128.9416
08-Oct-2018 15:00:53.425,128.8065,128.6897,128.9421
08-Oct-2018 15:00:53.433,128.82,128.6818,128.9294
08-Oct-2018 15:00:53.441,128.8154,128.6815,128.9392
08-Oct-2018 15:00:53.450,128.7981,128.6962,128.9416
08-Oct-2018 15:00:53.458,128.8015,128.6961,128.9426
08-Oct-2018 15:00:53.466,128.8082,128.6904,128.9382
08-Oct-2018 15:00:53.475,128.8031,128.6975,128.9332
08-Oct-2018 15:00:53.483,128.7902,128.6888,128.9229
08-Oct-2018 15:00:53.491,128.786,128.6875,128.9265
08-Oct-2018 15:00:53.500,128.7823,128.6899,128.9271
08-Oct-2018 15:00:53.508,128.802,128.6911,128.9343
08-Oct-2018 15:00:53.516,128.8071,128.687,128.9331
08-Oct-2018 15:00:53.525,128.7997,128.6761,128.9436
08-Oct-2018 15:00:53.533,128.8177,128.659,128.9522
08-Oct-2018 15:00:53.541,128.8192,128.6648,128.9555
08-Oct-2018 15:00:53.550,128.8058,128.6945,128.9676
08-Oct-2018 15:00:53.558,128.8095,128.6886,128.977
08-Oct-2018 15:00:53.566,128.8238,128.6768,128.9692
08-Oct-2018 15:00:53.575,128.8308,128.6784,128.9529
08-Oct-2018 15:00:53.583,128.8327,128.6637,128.9546
08-Oct-2018 15:00:53.591,128.8368,128.6644,128.9563
08-Oct-2018 15:00:53.600,NaN,NaN,NaN
08-Oct-2018 15:00:53.608,NaN,NaN,NaN
08-Oct-2018 15:00:53.616,NaN,NaN,NaN
08-Oct-2018 15:00:53.625,NaN,NaN,NaN
08-Oct-2018 15:00:53.633,NaN,NaN,NaN
08-Oct-2018 15:00:53.641,NaN,NaN,NaN
08-Oct-2018 15:00:53.650,NaN,NaN,NaN
08-Oct-2018 15:00:53.658,NaN,NaN,NaN
08-Oct-2018 15:00:53.666,NaN,NaN,NaN
08-Oct-2018 15:00:53.675,NaN,NaN,NaN
08-Oct-2018 15:00:53.683,NaN,NaN,NaN
08-Oct-2018 15:00:53.691,NaN,NaN,NaN
08-Oct-2018 15:00:53.700,NaN,NaN,NaN
08-Oct-2018 15:00:53.708,NaN,NaN,NaN
08-Oct-2018 15:00:53.716,NaN,NaN,NaN
08-Oct-2018 15:00:53.725,NaN,NaN,NaN
08-Oct-2018 15:00:53.733,NaN,NaN,NaN
08-Oct-2018 15:00:53.741,NaN,NaN,NaN
08-Oct-2018 15:00:53.750,NaN,NaN,NaN
08-Oct-2018 15:00:53.758,NaN,NaN,NaN
08-Oct-2018 15:00:53.766,NaN,NaN,NaN
08-Oct-2018 15:00:53.775,NaN,NaN,NaN
08-Oct-2018 15:00:53.783,NaN,NaN,NaN
08-Oct-2018 15:00:53.791,NaN,NaN,NaN
08-Oct-2018 15:00:53.800,NaN,NaN,NaN
08-Oct-2018 15:00:53.808,NaN,NaN,NaN
08-Oct-2018 15:00:53.816,NaN,NaN,NaN
08-Oct-2018 15:00:53.825,NaN,NaN,NaN
08-Oct-2018 15:00:53.833,NaN,NaN,NaN
08-Oct-2018 15:00:53.841,NaN,NaN,NaN
08-Oct-2018 15:00:53.850,NaN,NaN,NaN
08-Oct-2018 15:00:53.858,NaN,NaN,NaN
08-Oct-2018 15:00:53.866,NaN,NaN,NaN
08-Oct-2018 15:00:53.875,NaN,NaN,NaN
08-Oct-2018 15:00:53.883,NaN,NaN,NaN
08-Oct-2018 15:00:53.891,NaN,NaN,NaN
08-Oct-2018 15:00:53.900,NaN,NaN,NaN
08-Oct-2018 15:00:53.908,NaN,NaN,NaN
08-Oct-2018 15:00:53.916,NaN,NaN,NaN
08-Oct-2018 15:00:53.925,NaN,NaN,NaN
08-Oct-2018 15:00:53.933,NaN,NaN,NaN
08-Oct-2018 15:00:53.941,NaN,NaN,NaN
08-Oct-2018 15:00:53.950,NaN,NaN,NaN
08-Oct-2018 15:00:53.958,NaN,NaN,NaN
08-Oct-2018 15:00:53.966,NaN,NaN,NaN
08-Oct-2018 15:00:53.975,NaN,NaN,NaN
08-Oct-2018 15:00:53.983,NaN,NaN,NaN
08-Oct-2018 15:00:53.991,NaN,NaN,NaN
08-Oct-2018 15:00:54.000,128.8329,128.7114,128.9592
08-Oct-2018 15:00:54.008,128.823,128.7217,128.9579
08-Oct-2018 15:00:54.016,128.8222,128.708,128.9691
Juliana.