C
I'm looking for a stand-alone data logger that will log the values of 7 Modbus registers every 15 minutes.
We use Koyo DL06 PLCs and all data is logged to a PC running DAQFactory. If the PC goes down the process cannot continue since a subset of the data is required for regulatory compliance.
With a simple logger reading the required registers continuously we could continue to run on an emergency basis without the functions of the PC.
Serial or Ethernet would be OK, logging to a card or USB stick or, if equipped with TCP/IP we could use FTP to retrieve data.
I am a bit surprised I've not been able to find something like this. We use HOBO dataloggers for temporary process monitoring and they cost about $200 (but won't handle Modbus). The devices I have found that will do what we need have so many other functions and capabilities on board that they are more costly than I would like. Just logging and a way to retrieve it is all we need.
Thanks for any advice you can offer.
Charlie Judson
Weeks Drilling & Pump Co.
We use Koyo DL06 PLCs and all data is logged to a PC running DAQFactory. If the PC goes down the process cannot continue since a subset of the data is required for regulatory compliance.
With a simple logger reading the required registers continuously we could continue to run on an emergency basis without the functions of the PC.
Serial or Ethernet would be OK, logging to a card or USB stick or, if equipped with TCP/IP we could use FTP to retrieve data.
I am a bit surprised I've not been able to find something like this. We use HOBO dataloggers for temporary process monitoring and they cost about $200 (but won't handle Modbus). The devices I have found that will do what we need have so many other functions and capabilities on board that they are more costly than I would like. Just logging and a way to retrieve it is all we need.
Thanks for any advice you can offer.
Charlie Judson
Weeks Drilling & Pump Co.