5. Communication Programming
5.3. How to set Pnet slave I/F module parameter
Disable/Enables the parameter data as per your requirement and click OK.
For example, to enable Word Data Swap parameter data, perform the
This enables the upper byte and lower byte in a word to swap each other
when receiving and sending data.
Click OK twice.
If the parameter setting is complete, download the parameter to the Pnet
master module to apply the set parameter.
To monitor the Slave diagnostic function, in the SyCon window click Online
> Global State Field.
The Global state Field dialog box appears.
Click Devices With Diagnostic tab.
The slave station having diagnostic information appears.
Click the corresponding station.
The Diagnostic Station Address dialog box for the selected slave station
To view detailed information of the slave station, click Ext. Diagnostic.
The Extended Device Diagnostic dialog box appears.
You can review the status of the installed CPU module.
Operation of Sync, Freeze
According to Profibus-DP standard, 2MLL-PSEA supports Sync and Freeze instruction
as Global instruction. You can use Sync and Freeze function by using the master
supporting Sync and Freeze instruction.
Sync instruction: This is used to synchronize the output data of the slave station. If
slave station receives Sync instruction from the master, it keeps lastly received
output data as current output data. Slave repeats this action whenever it gets Sync
Pnet I/F Module 2MLL-PSRA, 2MLL-PSEA User's Guide
The Word Data Swap dialog box appears.
Select Enable and click OK.