Parameterizing the Mobile Panel 
  5.11 Enabling NTP 
Mobile Panels 2nd Generation 
Operating Instructions, 09/2018, A5E33876626-AC 
127 
The device name must be unique and satisfy the DNS conventions within the local 
network. These include: 
–  Restriction to 127 characters (letters, digits, hyphen or point) 
–  A name component within the device name, for example, a string between two points, 
may not exceed 63 characters. 
–  Special characters such as umlauts, brackets, underscores, slashes, spaces, etc. are 
not permitted. 
–  The device name must not start or end with the "-" character. 
–  The device name must not take the form n.n.n.n (n = 0 to 999). 
–  The device name must not start with the character string "port-xyz-" (x, y, z = 0 to 9). 
4.  Confirm your entries. 
The dialog closes. 
5.  Restart the HMI device, see section "Restarting the HMI device (Page 101)". 
 
To obtain the time of the HMI device from a time server, you can specify up to four different 
time servers. The time is synchronized using the "Network Time Protocol". The 
synchronization cycle applies to all configured time servers. 
●  The HMI device and time server are located in the same network. 
●  The Control Panel is open.