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Cinterion EHS5-E communication problem | Telit Cinterion IoT Developer Community

December 7, 2017 - 8:55pm, 5835 views

Hi!  

I'm trying to communicate with remote electric meter through GPRS-modem, based on EHS5-E chip. Sim-card installed in the modem has a static ip-adress. So,modem in TCP-server mode. I configure the modem using AT commands. The order of my actions is:

at+cgdcont=1,"IP","static.tele2.ru"

OK

at&w

OK

AT^SICS=0,CONTYPE,GPRS0

OK

at^sics=0,"apn","static.tele2.ru"

OK

AT^SISS=0,SRVTYPE,TRANSPARENT

OK

AT^SISS=0,conID,0

OK

AT^SISS=0,"address","socktcp://listener:5000;etx=26;timer=200"

OK

at^siso=0

OK

 

^SIS: 0,5

at^siso?

^SISO: 0,"TRANSPARENT",3,3,0,0,"90.150.68.193:5000","0.0.0.0:0"

^SISO: 1,""

^SISO: 2,""

^SISO: 3,""

^SISO: 4,""

^SISO: 5,""

^SISO: 6,""

^SISO: 7,""

^SISO: 8,""

^SISO: 9,""

A special configuration program of this electric meter allows to create a remote connection with it through GPRS in server and client mode.

In this program I have established a connection with the TCP port of the modem, but the electric meter does not respond. The electric meter is connected to the modem via the RS-485 interface. 

Few questions:
What am I doing wrong?

How can I save the Internet profile in the modem so that after power on it connects to GPRS and up the TCP port on the remote site?

Thanks!