Preface 
 
LOGO! CMR2020 / LOGO! CMR2040  
Operating Instructions, 09/2014, C79000-G8976-C356-01 
5 
Sources of information and other documentation 
You will find an overview of further reading and references in the Documentation references 
in this manual. 
Connection of a LOGO! BM to an LTE, UMTS or GSM/GPRS mobile wireless network and a 
GPS system. 
 
Impairment of medical devices and data media 
The device contains a wireless transmitter that could, under certain circumstances, impair 
the functionality of electronic medical devices such as hearing aids or pacemakers. Do not 
use the device in places where the operation of wireless devices is prohibited. You can 
obtain advice from your physician or the manufacturer of such devices. 
To prevent data media from being demagnetized, do not keep disks, credit cards or other 
magnetic data media near the device. 
 
Note 
Open source software 
Read
 the license conditions for open source software carefully before using the product. 
The license conditions for open source software are stored on the device and can be read 
out using the WBM: 
In the header of each page there is an icon with which you can download the OSS license 
texts. 
Siemens provides products and solutions with industrial security functions that support the 
secure operation of plants, solutions, machines, equipment and/or networks. They are 
important components in a holistic industrial security concept. With this in mind, Siemens’ 
products and solutions undergo continuous development. Siemens recommends strongly 
that you regularly check for product updates. 
For the secure operation of Siemens products and solutions, it is necessary to take suitable 
preventive action (e.g. cell protection concept) and integrate each component into a holistic, 
state-of-the-art industrial security concept. Third-party products that may be in use should 
also be considered. For more information about industrial security, visit 
http://www.siemens.com/industrialsecurity. 
To stay informed about product updates as they occur, sign up for a product-specific 
newsletter. For more information, visit http://support.automation.siemens.com.