Adleepower BL2-104 - Page 47

Ex. To read two parameter data address
28(1CH)=1500(05DCH) and address
29(1DH)=2000(07D0H) from drive address 52(34H).
1.RTU
45
(1) 03H : Read drive's setting
Computer command message
D1 : Communication address
D2 : Function code
D3 : Parameter number (H)
D4 : Parameter number (L)
D5 : Quantity of parameter (H) (word count)
D6 : Quantity of parameter (L) (word count)
D7 : CRCL or LRC (H)
D8 : CRCH or LRC (L)
(00~FFh)
(03h)
(00h)
(0~67h)
(00h)
(00~10h)
(0~FFh)
(0~FFh)
Drive response message
D1 : Communication address
D2 : Function code
D3 : Quantity of parameter (byte count)
D4 : Content of data (H)
D5 : Content of data (L)
D6 : Content of data (H)
D7 : Content of data (L)
Dn-1 : CRCL or LRC(H)
Dn : CRCH or LRC(L)
(01~FFh)
(03h)
(0~FFh)
(0~FFh)
(0~FFh)
(0~FFh)
(0~FFh)
(0~FFh)
Computer command message Drive response message
D1 Address 34H D1 Address 34H
D2 Function code 03H D2 Function code 03H
D3 Start address (H) 00H D3
Quantity of data
(count by byte)
04H
D4 Start address (L) 1CH D4 CD99 content (H) 05H
D5 # of data (H) 00H D5 CD99 content (L) DCH
D6 # of data (L) 02H D6 CD100 content (H) 07H
D7 CRCL CRCL D7 CD100 content (L) D0H
D8 CRCH CRCH D8 CRCL CRCL
D9 CRCH CRCH