LSIS LSLV-G100 - Page 231

7.3.1.2 Detailed Write Protocol
Write Request
ENQ
Station
ID
CMD
Address
Number of
Addresses
Data
SUM
EOT
05h
‘01’–‘FA’
‘W’
‘XXXX’
‘1’–‘8’ = n
‘XXXX…’
‘XX’
04h
1 byte
2 bytes
1 byte
4 bytes
1 byte
n x 4
bytes
2 bytes
1 byte
Total bytes= (12 x n x 4): a maximum of 44
Write Normal Response
ACK
Station ID
CMD
Data
SUM
EOT
06h
‘01’–‘FA’
‘W’
‘XXXX…’
‘XX’
04h
1 byte
2 bytes
1 byte
n x 4 bytes
2 bytes
1 byte
Total bytes= (7 x n x 4): a maximum of 39
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
7.3.1.3 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 x 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