Description
2.8 Communication and system connection
3WA1 air circuit breaker
170 Equipment Manual, 02/2023, 92310000002-06
Setting the system time via the COM190 communication module
The system time can be set as a data point via the Modbus TCP and PROFINET
protocols.
Automatic daylight savings switchover
The 3WA circuit breaker operates with a system time generated in the ETU600 electronic
trip unit. The system time can be set using the operating keys on the display of the
ETU600, via the USB and Bluetooth interfaces, PROFINET IO and Modbus TCP, and it
can be automatically synchronized via SNTP.
In order to synchronize the local system time via SNTP, the addition to or subtraction
from the UTC time must be set.
As an option it is possible to set up an automatic daylight savings switchover.
Requirement
• ETU600
• Optional COM190
• Optional NTP time server
• Optional SENTRON powerconfig configuration software version 3.17 or higher for
commissioning
Note
Deactivating the parameter write protection
system time parameters, the parameter write protection of the
COM190 communication module must be deactivated.
The system time itself can be changed even if COM190 parameter write protection is
active.
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