Skip to content

Commit

Permalink
Merge pull request #54 from wthomson/patch-1
Browse files Browse the repository at this point in the history
Update decompose_requests.rst
  • Loading branch information
OrangeTux committed May 11, 2018
2 parents 70fe4ae + 50325f7 commit f1683a9
Showing 1 changed file with 5 additions and 5 deletions.
10 changes: 5 additions & 5 deletions docs/source/decompose_requests.rst
Original file line number Diff line number Diff line change
@@ -1,11 +1,11 @@
Decompose requests
------------------

A Modbus requests and responses contains a Application Data Unit (ADU) which
contains a Protocol Data Unit (PDU). The ADU is the enveloppe containing a
message, the PDU is the message itself. Modbus requests can be send
communication layers layers, like RTU or TCP/IP. The ADU for these layers
differs. But the PDU, the message, has always the same strcuture, independent
Modbus requests and responses contain an Application Data Unit (ADU) which
contains a Protocol Data Unit (PDU). The ADU is an envelope containing a
message, the PDU is the message itself. Modbus requests can be sent via
two communication layers, RTU or TCP/IP. The ADU for these layers
differs. But the PDU, the message, always has the same strcuture, regardless
of the way it's transported.

PDU
Expand Down

0 comments on commit f1683a9

Please sign in to comment.