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How do I get time stamped data from a logger/RTU into my trends on an Intouch or similar SCADA?

Depends entirely on the RTU or protocol used. If your HMI does not directly support the RTU or device, you can use an OPC Server to access your data. Note that some protocols or devices cannot provide a timestamp, so the timestamp may come from the PC that the OPC Server sits on. Ask your OPC vendor.

MatrikonOPC has a wide variety of OPC Servers here: http://matrikonopc.com/opc-drivers/index.aspx

Adriel Michaud
MatrikonOPC

Hi Mutttt,

I'd go along with the same philosophy that Adriel suggested. In the past I've used the same approach for getting data out of Chessel chart recorders and Eurotherm RTUs. On these occasions I needed to get the data from the instrument using a plug in expansion card that allowed connection between the device and a PC using a MODBUS protocol. On the PC I installed an OPC Server which then allowed me take the data into other applications (in my case an AspenTech IP.21 historian).

In my case the timestamp could be extracted as part of the data transferred from the recorder/RTU, however as Adriel states it is dependant upon what the device allows, and if it doesn't support timestamp then the OPC server can append a timestamp.

Regards,

Burnikell