CMi6160
User’s Manual English
CMi6160
User’s Manual English
page | 21 (38)
[2022-10]
v1.4
Example 2
A device is configured the following way:
•
Message encoding: SenML/CBOR/M-Bus
•
Auto upload order: FIFO
•
Measurement interval: 60 minutes
•
Transmit interval: 60 minutes
•
Transmit offset: 15 minutes
•
Transmit delay: 30 minutes
•
Maximum uploads per transmission: 4
•
Upload maximum age 72h
•
Device max payload size: 12 (readouts per telegram)
A network issue caused the module to be offline for 5 days, while still reading and storing measurement
data. When the device manages to go online the following scenario takes place.
•
The device will start by transmitting measurement data that is 3 days old (FIFO order)
•
The device will send 4 measurement telegrams per hour, at a randomly chosen time between
minute 15 and 45
•
Each telegram contains 12 meter readouts, totaling 4 x 12 = 48 readouts per transmission
•
The device will take approximately 2 hours to “catch up” and start sending one measurement per
hour
7.4
Meter data transmissions
CMi6160 sends meter data messages according to it’s transmit interval settings. Meter read out is always
related to meter’s clock at time 00:00:00. Transmission time is randomized between read outs.
The user can customize the data sent from the module by configuring
message format
and
encoding
of
the telegram.
7.4.1 Message formats
CMi6160 has three different message formats: Standard, Extended and Tariff.
By selecting a message format, the user can configure the meter registers that will be included in the
telegram. In message format Standard, all meter registers in is included in the telegram.
In message format Extended, all meter registers of and will be included in the message. By selecting
message format
Tariff,
all meter registers in Table 7 will be included in the message. See below tables for
included data in the different formats.
Field
Description
Date and Time
(see Note 1)
6
INT32
Date and Time (Type F),
e.g. 046Dxxxxxxxx
M-Bus Format F for Date & Time
Meter ID
(see Note 1)
10
INT64
(Enhanced) Identification
e.g. 0779xxxxxxxxxxxxxxxx
Enhanced Meter Address for Diehl Sharky
Energy
6--7
INT32
Energy consumption (Wh, J)
e.g. 0406xxxxxxxx = xxxxxxxx
* 0.001 MWh (kWh)
