3.4.11 Parameter setting group selection
In the current IED version, parameter setting group selection and reading is defined
through regular Modbus registers. Formerly this was achieved by a special 4x register
9231. The new register has the default address 2301. The new register has the default
address 2301. See the IED documentation for the number of available setting groups.
Exception response 3 is given if the written value is out of range or the setting group
changing is blocked.
3.4.12 Time synchronization
The real-time clock inside the IED runs in UTC time. However, the local time is also
known by the IED through the time parameter settings. With Modbus the IED time can
be viewed and set either in local time or UTC time.
Two identical time structures are available in the Modbus memory map: the IED's
local time at location 49201...49208 and the internal UTC time at the location
49211...49218.
Time synchronization can be given either to the local time structure or to the UTC time
structure.
The IED accepts Modbus time synchronization only if the Synch
source setting is set to "Modbus". The parameter can be set via
Configuration/Time/Synchronization/Synch source.
3.4.12.1 Real-time clock structure
Table 37: Modbus real-time clock structure
Modbus address
Register contents Values
Local Time UTC Time
49201 49211 Control register 0...2
49202 49212 Year 2000...2099
49203 49213 Month 1...12
49204 49214 Day 1...31
49205 49215 Hour 0...23
49206 49216 Minutes 0...59
49207 49217 Seconds 0...59
49208 49218 Milliseconds 0...999
3.4.12.2 Writing to real-time structures
The Modbus time synchronization can be done in several ways. Over the serial
interface, the host's synchronization write can be given with the Modbus broadcast
Section 3 1MRS757645 B
Vendor-specific implementation
60 620 series
Communication Protocol Manual
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