LSIS LSLV0055H100-4COFN, Manual

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RS-485 Communication Features
Write Error Response
NAK Station ID CMD Error Code SUM EOT
15h ‗01‘–‗FA‘ ‗W‘ ‗**‘ ‗XX‘ 04h
1 byte 2 bytes 1 byte 2 bytes 2 bytes 1 byte
Total bytes=9
7.3.6.3 Monitor Registration Detailed Protocol
Monitor registration request is made to designate the type of data that requires continuous
monitoring and periodic updating.
Monitor Registration Request : Registration requests for
n
addresses (where
n
refers to
the number of addresses. The addresses do not have to be contiguous.)
ENQ Station ID CMD
Number of
Addresses Address
SUM EOT
05h ‗01‘–‗FA‘ ‗X‘ ‗1‘–‗8‘=n ‗XXXX…‘ ‗XX‘ 04h
1 byte 2 bytes 1 byte 1 byte n x 4 bytes 2 bytes 1 byte
Total bytes= (8 + n x 4): a maximum of 40
Monitor Registration Normal Response
ACK Station ID CMD SUM EOT
06h ‗01‘–‗FA‘ ‗X‘ ‗XX‘ 04h
1 byte 2 bytes 1 byte 2 bytes 1 byte
Total bytes=7
Monitor Registration Error Response
NAK Station ID CMD Error Code SUM EOT
15h ‗01‘–‗FA‘ ‗X‘ ‗**‘ ‗XX‘ 04h
1 byte 2 bytes 1 byte 2 bytes 2 bytes 1 byte
Total bytes=9
Monitor Registration Perform Request: A data read request for a registered address,