Parameterization and commissioning
CXxxxx-M930/B930
27
Version: 1.1
5.4
'Turning' process data
The process data are transferred in Intel format as standard. If the data are required in Motorola format, they
have to be 'turned' accordingly. This step illustrates how to 'turn' the data in TwinCAT.
If the standard format is required, you can skip this step.
Prerequisites for this step:
• A parameterized slave.
'Turn' the process data as follows:
1. In the tree view, right-click on a variable containing data to be 'turned'.
2. Click on the
Flags
tab.
3. Click on the required option. For WORD variables, only LOBYTE and HIBYTE can be swapped. With
DWORD variables you can additionally swap the WORD.
ð
In this way you can 'turn' process data. Use the following example to see how the data change for the
individual options.
Example for DWORD.
Data of the slave
Data which the master receives
Original data
No option
selected
Swap Byte (blue)
Swap Word (green)
Swap both (blue and
green)
0x01020304
0x01020304
0x02010403
0x03040102
0x04030201
The data can also be 'turned' in the PLC project, using the command ROR.
Example for ST: VarProfinet:=ROR(VarAnalog.8); (*both variables of type WORD*)
