C.1.5 Adding device to communication network
Before setting the parameters, it is necessary to configure the FS230 project in PDM.
1. Add the device to SIMATIC Modbus network:
– Open the project in the process device network view.
– Right click on Networks and select Insert New Object → Communication network.
The Insert Object(s) - <...> dialog box opens.
– Click on Assign Device Type.
– Select the inserted Modbus network in the right window and right-click.
– Select the Object Properties command.
– Enter the device-specific information in the Communication tab of the Properties dialog
for the Modbus network.
Modbus communication type: Serial or IrDA (infrared)
Serial The interface must be set accordingly on the PC station.
IrDA No additional setting required.
Once the device is within range, it is available for Modbus communication.
Only one infrared device can be coupled to Modbus at a given time. Several
devices can be coupled under Windows.
Response
time
General timeout within which the device is allowed to report. If the timeout is too
long, the communication is slowed. If it is too short, some devices may not be
found.
Figure C-1 Assigning Modbus device to network
– To check if the correct network and the correct port are assigned to the COM interface,
double-click the PC object in the right window. Select the COM interface object in HW
Config, and select the Object Properties menu command in the shortcut menu.
2. Set up the COM interface:
Note
The COM port is usually 1 for notebooks. Since most PCs have two COM ports, you have
to specify which port the device is connected to in this tab.
– To insert the Modbus device, select the Modbus network object in the right window and
right-click. In the displayed shortcut menu, select the Insert New Object → Object
command. In the displayed dialog box, enter the name of the Modbus device
SIMATIC PDM
C.1 Commissioning with PDM
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD 343
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