BGS2T - EHS5T AT command difference | Telit Cinterion IoT Developer Community
February 7, 2021 - 4:17pm, 8130 views
Hi,
For a long time I have been using a device (Natural Gas Volume Corrector) that manages the BGS2T device with AT commands.
I am communicating with my Natural gas volume corrector device (ModBus protocol) via BGS2T.
I want to switch to 3G or 4G due to the problems experienced in GPRS.
bought the EHS5T terminally PLS62T. But I could not communicate with both.
When I watched the communication between the Natural Gas volume correction device and EHS5T over RS485 communication, I noticed that there was an error in the AT+GMR command in the figure below.
AT+GMR function is valid for BGS2T but not for EHS5T and PLS62T. I found that AT+CMGR for EHS5T and PLS62T have the same function, but I do not have the opportunity to change the commands of the Natural gas volume corrector.
How can I resolve this situation?
Hello,
If your device can't show you the PPP communication in a readable form you would probably need some additional hardware and software to sniff on the port and decode PPP.
It seems that something fails in connection establishment. it might be related to authentication - if your provider requires authentication you may need to set the PAP or CHAP with AT^SGAUTH command. You may also set user and password. Please check PS attach state with AT+CGATT? You may also try to activate PDP context with AT+CGACT command before the connection.
Regards,
Bartłomiej