Hello,
I think there is bug in the implementation of system.historian.storeDataPoints.
My setup is basically Ignition Edge 8.3.4, using Internal Historian.
If i use storeDataPoints to write a value into the historian with timestamp A for the first time (no existing real tag) and then write another value for the same tag with timestamp B (where timestamp B is earlier than timestamp A) I see the following in the logs:
This appears to be an unhandled exception.
I running the following script inside script console:
GOOD_QUALITY = 192
path_flow = "Type3/008/Flow"
sample_rows = [
("2026-03-20 09:17:16", 44),
("2026-03-20 09:29:15", 55)
]
paths = []
values = []
timestamps = []
qualities = []
for ts_text, flow in sample_rows:
ts = system.date.parse(ts_text, "yyyy-MM-dd HH:mm:ss")
paths.append(path_flow)
values.append(flow)
timestamps.append(ts)
qualities.append(GOOD_QUALITY)
qc = system.historian.storeDataPoints(
paths=paths,
values=values,
timestamps=timestamps,
qualities=qualities
)
print "QC:", qc
print "Code:", qc.getCode()
Could please confirm if this is indeed a bug?
Thanks