LOGO! CMR2020 / LOGO! CMR2040  
Operating Instructions, 09/2014, C79000-G8976-C356-01 
47 
 
Permitted characters and character lengths 
When entering user names, login data, passwords etc. the following characters and 
character lengths are permitted. 
 
Note 
Leading and following spaces  
Leading and following spaces are not permitted in names. These result in an error message 
in the WBM indicating an incorrect entry. Exception: Descriptions and SMS message texts.
 
Use of special characters 
When using special characters, the maximum character length cannot be guaranteed.
 
 
Table 6- 1 
Characters/character lengths permitted and not permitted
 
Input box
Minimum 
character 
Maximum 
character 
Permitted characters
Non 
permitted 
•  Names 
(except for modules and 
NTP server name) 
1  20  All characters 
 
 
•  Description 
(except for plant descrip-
tion) 
0  50 
•  Module name 
•  NTP server name 
1 
1 
20 
63 
0 ... 9, a ... z, A ... Z -. 
(DNS name according to RFC 1035 and 
 
•  Plant description 
0  20  All characters   
•  SIM PIN
1)
 
4  8  0 ... 9  a ... z, A ... Z 
•  APN 
1  63  0 ... 9, a ... z, A ... Z -. 
(DNS name according to RFC 1035 and 
 
•  User name 
•  Password 
0 
0 
20 
20 
0 ... 9, a ... z, A ... Z ! “#$%&'()*+,-
./:;<=>?@[\]^_`{|}~ 
 
•  SMS password 
1  8  0 ... 9, a ... z, A ... Z!“#$%&'()*+,-./:<=>?@_  ; [\]^`{|}~°´€