Elvaco CMi4130, Руководство пользователя

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CMi413
0 User’s Manual English
CMi413
0 User’s Manual English
page | 15 (25) [2020-06]
V1.1
0 Message
format
identifier 1 byte - 0x10 (= Compact)
1 Energy 6 bytes INT32 Energy consumption (Wh, J)
0403xxxxxxxx = xxxxxxxx Wh
0404xxxxxxxx = xxxxxxxx * 10 Wh
0405xxxxxxxx = xxxxxxxx * 100 Wh
0406xxxxxxxx = xxxxxxxx kWh
0407xxxxxxxx = xxxxxxxx * 10 kWh
040Exxxxxxxx = xxxxxxxx MJ
040Fxxxxxxxx = xxxxxxxx * 10 MJ
2 Meter ID 6 bytes According to M-Bus
EN13757-3 identification field Meter ID
0C78xxxxxxxx
3 Alarm
codes 5 bytes INT16 Alarm codes
02FD17xxxx
For further information about Alarm
codes
please refer to the meter’s manual
Table 6: Payload, message format Compact
JSON
For message format JSON , the data is presented in a plain text format. Table 7 provides a description of
all fields included in the telegram.
Field Description
Message format
identifier 11 (Message format JSON )
Energy Energy consumption
Unit Unit of energy consumption (Wh, kWh, MWh,
GWh, J, kJ, MJ or GJ)
Meter ID Identification number of the meter in which the
module is mounted.
Table 7: Fields, message format JSON
An example of a telegram for message format
JSON is presented below:
Figure 7: JSON message example
Scheduled mode
For message formats of type
“Scheduled” (Scheduled – Daily redundant and Scheduled – Extended), two
types of messages will be transmitted from the module - a clock message and a data message. The
difference between the two is described in Table 8. A detailed description of the payload of the clock
message is provided in Table 9.
Message Time interval Description
Clock
message Once per day The clock message presents the current time of the
meter. It can be used to verify that the clock is
correct and has not drifted more than accepted.
Data message Determined by Transmit
interval parameter. The actual meter data collected from the meter. For
more information, see Table 11 and Table 12.
{"E":12345678,"U":"kWh","ID":87654321}