30
HARTING Electric GmbH
31
Management Software Ha-VIS mCon Series / Edition 2.4
System Settings
User Manual Ha-VIS mCon Switch Management Software
Manual Time settings
Function
Description
Current Time Source
RTC/PTP/NTP
Time
Specify the system time manually. The current system time is
displayed below
Current Value
in the format hours:minutes:seconds
(24-hour format). The time can be specified manually in the
New
Value
column.
Date
Specify the date manually. The currently set date is displayed
below
Current Value
in the format day-month-year. The date can be
specified manually in the
New Value
column.
Get Time
Click on this button to enter the computer system’s time and date
into the fields above. The time information will be taken from the
computer on which the web browser is running.
Automatic Time settings
Function
Description
Auto Update
Check this box in order to receive the system time automatically with
the support of a SNTP server.
Status
Shows the current synchronization status
Interval
Specify the period of time in minutes. The system time is then
updated periodically at this interval.
Range of value:
64 - 16284
Default value:
64
Time Zone
Specify the Time Zone
-12:00
...
+ 12:00
SNTP Servers
Specify the address of the SNTP servers that will supply the system
time. The address can be that of either a publicly-accessible PC or a
specified PC in the network that serves as a time generator. The IP
address must be specified. More than one server may be specified
to provide redundancy.
Note
The Ethernet switch stores time and date up to 72 hours after power off. By default, the switch
starts with the following system settings after booting up:
Time 00:00:01
Date 01-01-1970
The Ethernet switch does not automatically adjust to summer and winter time. This should be
taken into account when evaluating log files or alarm-generated e-mails in which the time is
logged.
8.6.2 Precision Time Protocol (PTP)
PTP, in accordance with standard 1588v2, is a network protocol to synchronize the time of multiple
participants in a network. A PTP network consists of a hierarchical structure made up of clocks
which are synchronized with each other. One of the clocks is the “grandmaster clock” with which
all the other clocks are synchronized. Which participant is considered the “grandmaster clock” is
determined using the “best master clock” algorithm.
8.5.3 Advanced LLDP Settings
Figure 8-10
Advanced LLDP Settings (Network Discovery section)
In this menu, you can make more extensive settings for LLDP. You can enable or disable LLDP
for a specific port. Select Tx only if you want to transmit LLDP-frames but don’t want to receive
LLDP-frames. Choosing Rx only causes that LLDP-frames can be received but not be transmitted.
By default, both options are activated.
Function
Description
Port Config
Select this function if you want to send and/or receive LLDP frames
on a specific port.
Range of value:
Tx only
/
Rx only
/
Tx and Rx
/
Disable
Default value:
Tx and Rx
8.6 Time Settings
This section allows you to set the system time for the switch. The time can be specified manually
or automatically via an SNTP (Simple Network Time Protocol) server.
The Simple Network Time Protocol is a subset of the Network Time Protocol used to synchronize
computer clocks in the Internet. HARTING switches implement the client portion of the SNTP protocol
and do not implement the server portion. The administrator has the choice whether to set the system
clock manually or to enable SNTP. If SNTP is enabled, the SNTP client gets the time from the server.
The SNTP client also has callouts to set the system time based on the time received from the SNTP
server.
8.6.1 Time Settings
Figure 8-11
Time Settings window