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ATIM_ACW-TMxP_UG_EN_V1.0
The type of
alert field
is used to identify whether it is a breach of the high threshold, the low threshold or a return
between the thresholds.
WARNING:
A threshold alert can only be triggered by a temperature channel.
These values are defined as follows:
The measurement type field here is identical to that of the measurement frame (i.e. 0x08 in hexadecimal for the ACW-
TMxP).
The sample that caused the alert is then inserted afterwards (with
Big Endian
encoding - MSB first).
Keep-alive frame
The life frame is sent at regular intervals according to the configuration applied (by default 4 days) and contains the
battery levels of the product when empty (the product does nothing) and when charging (the product is transmitting
a frame radio).
Following this header are 4 bytes, 2 for the empty battery level and 2 for the charging battery level.
The frame is therefore split as follows: 0xAABBBBCCCC
0xAA being the frame header (always equal to 0x81), 0xBBBB the empty battery level (value in millivolts, MSB coding)
and 0xCCCC the charging battery level (value in millivolts, MSB coding)
Example : 0x81 0d24 0c68
0d24: empty battery level = 3364 mV or 3.364 V
0c68
: battery charge level = 3176 mV or 3.176 V
Error and alarm generic frame
If the Timestamp is activated, 4 bytes with the Timestamp value will be preceded by the header (byte 1).
Value
Description
0x00
Return in the comfort zone
0x01
Upper threshold crossing
0x02
Lower threshold crossing
0x03
Reserved
Byte 1 - Header
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
New
generation = 1
Timestamp
= 0
Measurem
ent frame =
0
Reserved =
0
Keep-alive frame = 0x01
Byte 1 - Header
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
New
generation= 1
Timestamp
Measuring
frame= 0
Reserved= 0
Error frame= 0x0e
