Sontex 878 - Communication and Measuring Indicator; Real Time Clock and Calendar

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Instruction for Use | HCA 56x and 8x8
6.4 Communication indicator
The communication indicator shows whether the heat cost allocator is performing
a calculation and/or whether it is communicating via the optical interface or via the
Supercom or LoRaWAN® radio interfaces.
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If the frame of the communication indicator appears the heat
cost allocator has detected a wake-up signal (optical or radio
Supercom)
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If the arrow of the communication indicator points inwardly in-
ternal communication takes place over the optical or wireless
interface (only radio Supercom).
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If the arrow of the communication indicator points outwards
external communication takes place over the optical or wire-
less interface (only radio Supercom).
LoRaWAN®: When the outgoing arrow appears a JOIN request
has been transmitted to the LoRaWAN® network, but no res-
ponse from the network has been received. If the connection
could not be established, the JOIN process repeats once a day.
LoRaWAN®: Incoming and outgoing arrow visible
The connection with the network is functional.
LoRaWAN®: When the communication frame and arrows ap-
pear, radio data transmission is in progress.
6.5 Real Time Clock and Calendar
The device has a 24 h real time clock and a calendar. However, the change from summer to
winter time is not taken into account. The calendar is programmed until December 31 2099,
including all leap years. The real time clock as well as the date of the heat cost allocator can be
readout over the optical interface or via radio and if necessary be updated.
If the current date and time have to be updated over the optical interface or via
radio, it is necessary to check the date of the computer first. Date and time of the
device aim at those of the computer. If the reading/programming device (computer/
Tablet/ Smart Phone) has a wrong time, this time will be programmed into the heat
cost allocator and suddenly no longer be reached at the usual time, because the time
of the heat cost allocator possibly is shifted by several hours.
Important : The time on your readout / programming interface must always be set to
winter time