User's Manual

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7~4
TYPE
0x6
Message type, CS can use it to identify different
uplink messages.
3~0
ALARM
0
Not used
MSGID field
Bit
Name
Value
Description
7~0
MSGID
0~255
Device generated sequence number of this uplink
message that need MSGID, CS should respond ACK
with this number, otherwise Device will resend the
message.
4.3.9 Acknowledge
Bytes
1
1
Item
TYPE
MSGID
TYPE field
Bit
Name
Value
Description
7~4
TYPE
0xF
Message type, CS can use it to identify different
uplink messages.
3~0
RESULT
0: success
1: failure
Process result of any downlink message that need
acknowledge.
MSGID field
Bit
Name
Value
Description
7~0
MSGID
0~255
The MSGID field of corresponding downlink
message.
4.4 Downlink Message
4.4.1 Register acceptance
Bytes
1
Item
TYPE
TYPE field
Bit
Name
Value
Description
7~4
TYPE
0x1
Message type, Device can use it to
identify different downlink messages.
3~0
RESULT
0: success
1: illegal Device
2: server busy
Register result.
In current Device, if the result is not 0,
Device will go on sending Register
C256U-PQ User Manual