It sure looks like log data… either from another node or from something internal in your systems.
i converted a few more lines (they are in reverse order, sorry)
200717081007 (2nd segment of first line) = 2020-07-18 08:10:07 = when we got the package. something is logging every 6 minutes and sending 2*6 values every 12 minutes.
#,PLANT1,200717080405,0000.0,000060,0000.0,0000.0,000000,000010,;#,PLANT1,200717081007,0000.0,000067,0000.0,0000.0,000000,000013,
#,PLANT1,200717075202,0000.0,000069,0000.0,0000.0,000000,000014,;#,PLANT1,200717075803,0000.0,000060,0000.0,0000.0,000000,000010,
#,PLANT1,200717073958,0000.0,000044,0000.0,0000.0,000000,000003,;#,PLANT1,200717074559,0000.0,000060,0000.0,0000.0,000000,000007,
#,PLANT1,200717072754,0000.0,000018,0000.0,0000.0,000000,-00003,;#,PLANT1,200717073356,0000.0,000025,0000.0,0000.0,000000,-00001,
#,PLANT1,200717071551,0000.0,000011,0000.0,0000.0,000000,-00005,;#,PLANT1,200717072152,0000.0,000013,0000.0,0000.0,000000,-00003,
#,PLANT1,200717070347,0000.0,000006,0000.0,0000.0,000000,-00006,;#,PLANT1,200717070950,0000.0,000009,0000.0,0000.0,000000,-00003,
#,PLANT1,200717065143,0000.0,000006,0000.0,0000.0,000000,-00006,;#,PLANT1,200717065745,0000.0,000006,0000.0,0000.0,000000,-00004,
#,PLANT1,200717063940,0000.0,000004,0000.0,0000.0,000000,-00006,;#,PLANT1,200717064542,0000.0,000004,0000.0,0000.0,000000,-00006,
#,PLANT1,200717062736,0000.0,000002,0000.0,0000.0,000000,-00008,;#,PLANT1,200717063338,0000.0,000002,0000.0,0000.0,000000,-00008,
#,PLANT1,200717061532,0000.0,000000,0000.0,0000.0,000000,-00012,;#,PLANT1,200717062134,0000.0,000002,0000.0,0000.0,000000,-00010,
#,PLANT1,200717060328,0000.0,-00000,0000.0,0000.0,000000,-00009,;#,PLANT1,200717060931,0000.0,-00000,0000.0,0000.0,000000,-00014,
#,PLANT1,200717055125,0000.0,-00000,0000.0,0000.0,000000,-00010,;#,PLANT1,200717055727,0000.0,-00000,0000.0,0000.0,000000,-00009,