Command Code Execution - Siemens SIMOVERT MASTERDRIVES Operating Instructions Manual

Communication via CC-Link
4.6

Command code execution

Command code
execution
4-10
With the command execution sequence you can read and change the
parameters of the converter. The CBL converts the Command code
execution into a PKW mechanism of the MASTERDRIVES converter.
This conversion needs a sequence of command code execution
which is described in next chapters.
The parameters are explained in the documentation of the converter
and the communication parameters of CBL in chapter 5 "Start-up of the
CBL".
A single command execution sequence is started by the user by writing
a command code in RWwm+2. To change, the new value of the
parameter is written into written data (RWwm+3). After that the
sequence is activated with the control bit command code execution
request . After CBL has handled the command it acknowledges by
writing a reply code (RMrm+2) and read data (RMrm+3) and then
activating command code execution complete .
Command code
execution request
Command code
Command code
execution complete
Reply code
Fig. 4-6 Command code execution sequence
The CBL handles the PKW mechanism with two 4-word-structures (16
bit words):
PKW request structure
PKE
PKW reply structure
PKE
The next chapters explains:
Chapter 4.7 "Parameter area (PKW)" explains you how the PKW
mechanism works.
Chapter 4.8 "Handling PKW via CC-Link" tells you how you can read or
change parameters.
command code
reply code
INDEX PWE1
INDEX PWE1
6SE7087-6NX84-0GB0
Operating Instructions SIMOVERT MASTERDRIVES
03.99
RYnF
RWwm+2
RXnF
RWrm+2
PWE2
PWE2
Siemens AG