1

In the Devices tree, double-click the protocol manager.

Result: The configuration window is displayed.

2

Select the IOScanner I/O Mapping tab:

3

Select the Bus cycle task in the list:

oUse parent bus cycle setting (by default),

oMAST

NOTE: The Bus cycle task parameter inside the I/O mapping editor of the device that contains the Modbus TCP IOScanner defines the task responsible for the refresh of the I/O images (%QW, %IW). These I/O images correspond to the Modbus request sent to the Modbus slaves and the health bits.

4

Double-click in a cell of the Variable column to open a text field.

Enter the name of a variable or click the browse button [...] and chose a variable with the Input Assistant.

1

In the Devices tree, double-click a Modbus TCP slave device.

Result: Its configuration window is displayed.

2

Select the ModbusTCPSlave I/O Mapping tab.

3

Select the Bus cycle task in the list:

oUse parent bus cycle setting (by default),

oMAST

NOTE: The Bus cycle task parameter inside the I/O mapping editor of the device that contains the Modbus TCP IOScanner defines the task responsible for the refresh of the I/O images (%QW, %IW). These I/O images correspond to the Modbus request sent to the Modbus slaves and the health bits.

4

Double-click in a cell of the Variable column to open a text field.

Enter the name of a variable or click the browse button [...] and chose a variable with the Input Assistant.