Hi, I have a FMU125, I was able to send and receive data using 485 and rs232 from the device to the server using Codec12 GPRS messages.
The device will have a external sensor that sends data periodically via RS232. I am able to get the data if the TCP tunnel is UP. The problem is that this sensor will send data on point where I know the GSM signal will be lost. I would like to know if the incoming data can be stored as AVL data, so it stays on the device until I its connected to the server again.
I did try to turn on message timestamp, I do see the the timestamp, but I do not get the queue of messages , just the one I sent when the tunnel is Up