datafile = 'data.csv'
set datafile separator ','

set title 'Data Dump'
set key autotitle columnhead
set xlabel "Time (ms)"
set ylabel "Value"

set style line 1 linewidth 2 linecolor 1 pointtype 7 pointsize 1.5

set autoscale
set grid

set term png size 1280, 720
plot datafile using 1:2 with linespoints linestyle 1 
# plot datafile using 1:2 with linespoints linestyle 1, datafile using 1:3, etc...
replot