Skip to main content
TT_143969215-Regular Member
5-Regular Member
February 17, 2026
Solved

Logging DTL with OPC UA

Hello,
I have a PLC program which send the DTL from the PLC, although I can log the timestamp based on the SQL side, is there anyway to log DTL directly from PLC to Kepware with the new/upcomming updates ?

MRohillaAnswer
Support
March 16, 2026

Greetings,

Sounds like Siemens.  DT (Date and Time) is supported, but I believe DTL (Date and Time Long) is still not.  I also believe this is true for Siemens TCP as well as Siemens S7 Plus. The workaround would be to switch the data type in the PLC to DT.

Regards,

Mohit 

View in thread

3 replies

MRohillaCommunity Manager
Support
March 6, 2026

Greetings,

Could you please share the PLC model details with us?

Regards,

Mohit

Translate
TT_143969215-Regular MemberAuthor
5-Regular Member
March 6, 2026

I have problem when try to log the DTL data from PLC 1211DC and also 1511PN, both with the newest firmware

Translate
MRohillaCommunity ManagerAnswer
Support
March 16, 2026

Greetings,

Sounds like Siemens.  DT (Date and Time) is supported, but I believe DTL (Date and Time Long) is still not.  I also believe this is true for Siemens TCP as well as Siemens S7 Plus. The workaround would be to switch the data type in the PLC to DT.

Regards,

Mohit 

Translate
Terms & ConditionsAccessibility statement