CAI 700M - Page 183

700M HFID 6-2-15
183
Here is an example of a request to read Register 0:
Request
Response
Field Name
(Hex)
Field Name
(Hex)
Function
03
Function
03
Starting Address Hi
00
Byte Count
04
Starting Address Lo
00
Register Value Hi (1)
52
Number of Registers Hi
00
Register Value Lo (1)
2C
Number of Registers Lo
02
Register Value Hi (0)
Register Value Lo (0)
44
9A
The contents of Register 0 are shown as the four byte values of 44 9A, 52 2C hex, or 1234.56789
decimal.
Here is an example of a request to read Register 40201:
Request
Response
Field Name
(Hex)
Field Name
(Hex)
Function
03
Function
03
Starting Address Hi
9D
Byte Count
04
Starting Address Lo
09
Register Value Hi (40202)
33
Number of Registers Hi
00
Register Value Lo (40201)
33
Number of Registers Lo
02
Register Value Hi (40201)
Register Value Lo (40201)
41
8F
The contents of register 40201 are shown as the four byte values of 41 8F 33 33 hex, or 17.9
decimal.