Siemens SIMATIC LOGO! CMR2020 Operating Instructions Manual page 24

Requirements for use
SIM card
You require a SIM card of your mobile wireless provider with the corresponding PIN
(Personal Identification Number).
Exception: SIM cards that are only used for the data service can be used without a PIN.
Only necessary if NTP is used:
● Activation for packet-oriented data services
The SIM card must be activated for the packet-oriented data services in the mobile
wireless network by your mobile wireless provider:
– LOGO! CMR2020: GPRS
– LOGO! CMR2040: LTE
– The following access data for the mobile wireless network must be present: Access
For more information, refer to the section Mobile wireless settings (Page 77).
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As the preferred connection, LOGO! CMR2040 first attempts to establish a connection
to the LTE mobile wireless network.
If the connection to the LTE mobile wireless network fails, the CMR attempts to
establish a connection to the UMTS mobile wireless network.
If the connection to the UMTS mobile wireless network fails, the CMR attempts to
establish a connection to the GSM/GPRS mobile wireless network.
Point Name (APN), user name and password.
LOGO! CMR2020 / LOGO! CMR2040
Operating Instructions, 09/2014, C79000-G8976-C356-01