ATIM Cloud Wireless ACW/LW8-MR4, User Manual, Page: 25 / 36

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ATIM_ACW-MR4_UG_EN_V1.5
Different type of frames:
Frame type Size of data Descriptions
0x00 -- Reserved
0x01 5 bytes Keep alive frame
0x02 0 byte Downlink request for network testing (Only Sigfox)
0x03 8 bytes Reserved
0x04 -- Reserved
0x05 1 byte Test frame with counter
0x06 Variable (Cfg box) Response to a setup frame.
0x07 Variable (Cfg box) Response to a command frame.
0x08 Variable (Cfg box) Response to an incorrect frame.
0x09 -- Reserved
0x0a -- Reserved
0x0b -- Reserved
0x0c -- Reserved
0x0d Variable Alert measurement frame (threshold crossing or back to normality),
sampling follow up of each channel in alert
0x0e Variable General error - (see page 23)
0x0f Variable ... Subframe for ACW. Depending on the ACW
Measurement frame
If the Timestamp is enabled, 4 bytes with the Timestamp value will be preceded by the header (byte 1).
WARNING
If depth of history or Number of samplings is greater than 1, the frame emission period (in minutes) will be added after header
(byte 1) on two bytes (Little Endian encoding, LSB first).
Byte 1 - Header
Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
New
generation
= 1
Timestamp Measurement
frame
= 1
History depth (-1)
Max: 4
Number of samplings (-1)
Max: 8