CMi414
0 User’s Manual English
CMi414
0 User’s Manual English
page | 18 (26)
[2020-06]
V1.1
3
Power / Flow
/ Fw temp /
Rt temp
12 bytes
INT64
Byte 0-2 = DIF/VIF codes, 0x07FFA0
Byte 3 = Scaling of Power/Flow
-Bit 6.4 (n), 10
n-3
W, n = 0..7
-Bit 2..0 (m), 10
m-3
m
3
/h, m = 0..7
Byte 4-5 = Fw temp (lsByte -> msByte), °C, 2 decimals
Byte 6-7 = Rt temp (lsByte -> msByte), °C, 2 decimals
Byte 8-9 = Flow (lsByte -> msByte), 10
m-6
m
3
/h
Byte 10-11 = Power (lsByte -> msByte), 10
n-3
W
4
Meter ID /
Info bits
16 bytes
INT96
Byte 0-2 = DIF/VIF codes, 0x07FF21
Byte 3-6 = Info bits (lsByte -> msByte)
Byte 7-10 = Meter ID (lsByte -> msByte)*
*Sent in binary format
5
Meter
date/time
6 bytes
INT32
Meter date and time (YY-MM-DD HH:MM)
046Dxxxxxxxx
Bit 31-28 = Year-high*
Bit 27-24 = Month
Bit 23-21 = Year-low*
Bit 20-16 = Day
Bit 15 = Summertime flag**
Bit 12-8 = Hour
Bit 7 = Error flag***
Bit 6 = Reserved for future use***
Bit 5-0 = Minute
*The year is read by combining the year-high and year-
low field. For example, year-high = 0010 and year-low =
010 => year = 0010010
**0 = standard time, 1= daylight-saving time
***0 = timestamp is valid, 1 = timestamp is
not
valid
Table 13: Payload, message format Scheduled - Extended
Combined heat/cooling
Message format
Combined heat/cooling
is made to be used in meters that measures both heating and
cooling energy. Table 14 describes the telegram of the meter.
Message format
Combined heat/cooling
is only meant to be used in combined heat/cooling
meters.
DIB
Field
Size
Data type
Description
0
Message
format
identifier
1 byte
-
0x1A (Combined heat/cooling)
1
Heat
energy E1
6-7 bytes
INT32
Energy consumption (Wh, J, Cal)
0403xxxxxxxx = xxxxxxxx Wh
0404xxxxxxxx = xxxxxxxx * 10 Wh
0405xxxxxxxx = xxxxxxxx * 100 Wh
0406xxxxxxxx = xxxxxxxx kWh
