Operation
7.4 Disruptions and their possible causes
LOGO! CMR2020 / LOGO! CMR2040
Operating Instructions, 09/2014, C79000-G8976-C356-01
133
Bad or no time-of-day synchronization
using NTP
• Bad mobile wireless reception
• Wrong configuration in the WBM
• Mobile wireless interface deactivat-
ed
• Incorrect NTP server name or incor-
rect IP address
• Correct the alignment of the anten-
na
• Activate the mobile wireless inter-
face in the WBM
• Check the configuration of the mo-
bile data connection in the WBM
No SMS reception
• SMS reception deactivated
• Bad mobile wireless reception
• User not registered or authorized
• Activate SMS reception in the WBM
•
Check user rights in the WBM and if
necessary correct
• Check the antenna position of the
mobile wireless antenna
No dial-in to the mobile wireless net-
work
• PIN entered incorrectly three times
• Mobile wireless interface deactivat-
ed in the WBM
• See section Insert the SIM card and
enter the PIN (Page 33), unlocking
the SIM card
• Activate the mobile wireless inter-
face in the WBM
Monitoring not working
• Expected SMS messages config-
ured in the WBM are not received
Check in the WBM:
• Are the assignments active?
• Are the inputs/outputs connected
correctly?
• Only if objects of the BM are moni-
tored:
SMS message received in which there
are placeholders between 2 exclama-
tion points
•
A signal name specified in the WBM
does not exist or has been written
incorrectly. The incorrect or non-
existent signal name is then shown
in the message texts as follows:
[CMR_I1] becomes !CMR_I1!
• Correct placeholders in the WBM