Siemens LOGO! CIM Operating Manual page 89

If the all the items in cellular status are OK, but you still cannot send/receive SMS or access to
Internet, Check the following cases.
Problem Possible cause
CIM cannot The SIM card account is in arrears.
send/receive SMS
The SIM card is locked by your telecom
provider.
The SMSC (Short message service center)
number is not correct,
The cellular module doesn't support the
provider's SMS.
The message encoding format is not 7-bit
or UCS2 (16 bit).
The SIM card is not compatible with the
cellular module.
Cannot access to The advanced settings (APN, dial-number)
Internet is not correct.
• It is slow to open •
the web-based
configuration
•
pages.
• You get a load
fail when open-
ing the web-
based configura-
tion page.
LOGO! CIM
Operating Manual, 10/2021, A5E51250518-AA
You didn't install the certificate on your
operating system or browser.
There are too many cache files in the
browser.
Possible remedy
Top up the account. Then go to the Cellular status
page and press the button "Restart Cellular Module" to
register again.
Contact your provider to unlock it.
Ask your telecom provider for the SMSC number and
Enter it in the following page of web-based configura-
tion: Cellular Settings -> SMS Center Number.
Change a SIM card which is compatible with the cellu-
lar module.
Contact your telecom provide and enter the APN in
page: Cellular Settings -> Advanced Settings.
• Install the certificate on your operating system or
browser.
• Clear the cache files of the browser.
Technical support
A.2 Troubleshooting
89