Hi there,

I want to access the DT800 wireless with the radio 905U-D and unload data. Therefore, I connected the Ethernet port of the DT800 to the radio and the other radio with Ethernet cable to my PC.

Then I use DeLoad to unload data. Unfortunately DT800 starts unloading data regardless of the state of the radio connection. So when I lost connection temporarily, I lost my data.

Also I think the DT800 has no handshaking with the radio, which leads to another loss in data as the DT800 sends out the data on the Ethernet port too fast for the radio to transmit.

Is there a way to make the Ethernet work with this setup without losing data? If not, is the RS232-Port on the DT800 able to do it? Means connecting RS232 to the radio still allows me to address the DT800 via DeLoad without losing data?

Thanks,
Philipp

Do you mean the 905U-E? The data won't be lost, just missing
You can unload again and it should be OK. If you are using Ethernet then you can also use FTP to get the files out. FTP will at least show errors if you have any disconnections.

Going back to the start, the first thing to do is ensure your radio modems are setup OK and have the right antennas fitted etc. Too much signal is just about as bad as no signal.

Unless you have a reliable radio connection you are going to always have dramas with failed unloads.

True, data is not lost but missing.

I was wondering if the DT80 can ensure data integrity, because all it has to do is do some handshaking and checks. Sending data with windows via a radio connection works, even if the connection is bad, whereas with DT800, it doesn't (missing data).

How can I use FTP? The following code is as far as I know not for DT800.

FUNCTION1="FTP ARCH"{ARCHIVE"LONTEK1" "ftp://Username:Password@lontek.com.au/public_html/lontek/"}
FUNCTION2="FTP CSV"{/h/R/n/c/u P22=44 P24=13 P33=0 U"LONTEK1" "ftp://Username:Password@lontek.com.au/public_html/lontek/"}
DO"Unload"{/D/T/h/R/n/c/u P22=44 P24=13 P33=0 U"LONTEK1" "ftp://Username:Password@lontek.com.au/public_html/lontek/"}

ftp(s)://<login>:<password>@<ftpserveraddress>:<port>
FUNCTION1="FTP ARCH"{ARCHIVE"LONTEK1" "ftp://User:Password@10.1.2.28/try/"}

Or can I get all data in a better way off the datataker with a RS232 connection to the radio?

Philipp

Good afternoon Philipp,

The DT80 and DT800 have the same basic communications set up.
You should be using handshaking, so you have to make sure both the radio modems and the dataTaker are set to do the same type of hand shaking (Either Xon/Xoff or Hardware).

The data will still be in the DT800 so you can down load it again or down load the missing bits.

I would concentrate on getting the communications stable. (Why is the signal dropping out??) No amount of error checking will make up for poor communications.

You can FTP to the DT800 but the DT800 does not have the FTP push capability of the DT80 series.

Cheers,
Roger

I agree with Roger.

Ensure the basic issue of reliable radio communications is sorted out before you get too concerned about the PC and DT800 ends of the communications channel. My experience of the 906 is mainly with the 905U-D, it can be a bit difficult to get it right but once it is working it just seems to work for good.

Difficulty has happened when trying to operate through wet tree branches etc or when the modems have been too close to each other.