ProSoft Technology PLX3 Series User Manual page 146

MBS Protocol
User Manual
Example and State Diagram
Here is an example of a request to remote device to Return Query Data. This
uses a sub-function code of zero (00 00 hex in the two-byte field). The data to be
returned is sent in the two-byte data field (A5 37 hex).
Request
Field Name
Function
Sub-function Hi
Sub-function Lo
Data Hi
Data Lo
The data fields in responses to other kinds of queries could contain error counts
or other data requested by the sub-function code.
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Response
(Hex) Field Name
08 Function
00 Sub-function Hi
00 Sub-function Lo
A5 Data Hi
37 Data Lo
PLX3x Series
Ethernet and Serial Gateways
(Hex)
08
00
00
A5
27
ProSoft Technology, Inc.
May 26, 2016