User Manual
M3x5/EN M/B
iSTAT M3x5
Page 119
17.4.2
Response Frame
The normal response returns the slave address, function code, starting address, and
quantity of registers pre-set. Here is an example of a response to the query shown above.
Starting Register
Register Count
CRC
Slave
Address
Function
Code
HI LO
HI LO
LO HI
21
16
00 00
00 02
If the password is not correct (L1 or L2 or BP), the response to the query is:
Starting Register
Register Count
CRC
Slave
Address
Function
Code
HI LO
HI LO
LO HI
21
16
00 00
00 02
17.5 17 (11HEX) report slave id
Returns a description of the type of controller present at the slave address.
17.5.1
Request Frame
Here is an example of a request to report the ID of slave device 33:
CRC
Slave Address
Function Code
LO HI
21 11
17.5.2
Response Frame
The format of a normal response is shown below:
Register Data
CRC
Slave Address Function Code
Byte Count
HI LO HI LO HI LO
LO HI
21
11
06
20 4D 30 32 32 30
Summary of Contents for iSTAT M355
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