LSIS G100, Operation Manual

Page: 231 / 343

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