Technical Annex

AM Type

The AM Type (Application Message Type) is an 8-bit identifier present in the message header that uniquely identifies the message format.

Uplink messages (output): Sent from the node to the gateway. The header (ls_header) contains uplink_version, node_id, product_code, sequence_number, and am_type.
Downlink messages (input): Sent from the gateway to the node. The header (ls_header_down) contains only am_type.

DIG Gen Payloads

DIG Generic messages (DigGenDataStrMsg) carry integration-specific payloads identified by a combination of integration_id and message_version. Each payload type is documented as a separate message page.

Field Types

Type	Description
UInt	Unsigned integer
Int	Signed integer
Bool	Boolean (1 bit)
Enum	Enumerated value — possible values listed in Description
Struct	Container grouping sub-fields
Switch	Conditional container — only one branch is active
Seq	Variable-length sequence of repeated elements
Bytes	Raw byte payload
TimestampField	Unix timestamp
Fragment	Part of a larger field reassembled from fragments
Reserved	Reserved for future use
Bitmap	Bit-level flags