5.2Configuring the Project File
Once you have created or opened the project file, select Edit from the main menu. When the Device Pro- tocol for port 2 is set to SEAbus (see Section 5.4), the following menu items appear:
•Port 1 (Modbus Master)—allows you to select the protocol (RTU or ASCII) and configure the com- munications settings for the Modbus Master device connected to port 1.
•Port 2 (Devices)—allows you to configure commu- nications settings for SEAbus devices or Siemens Protective relays connected to port 2.
•Port 3 (Modbus/Passthrough)—allows you to select whether port 3 is used as a passthrough to the devices on port 2, or used for connection to a second Modbus Master device.
Note: If the Device Protocol for port 2 is set to VDEW (see Section 5.4), then two addi- tional menu items are available: Global Command Registers and Device Text to Values Table. See Section 5.8 and Section for instructions on using these menu items. In addition, the port 3 menu item is changed to Port 3 (Modbus Master) because the passthrough feature is not sup- ported with VDEW devices. The instructions in Section 5.3 are applicable to port 1 and to port 3 for VDEW devices.
•Diagnostics—allows you to indicate if you want the DTU3005 to write communications diagnostic information to the Modbus Master.
•Device Command Registers—allows you to indi- cate which PLC registers will be used for device commands.
•Device Defaults—allows you to set the default data registers for more than one device of a cer- tain type, e.g., set the defaults for all 4720 power meters or all S7-I/O units. The data registers can still be customized for each device, as required. See Section 5.7.2 for more information.
•Device List—allows you to indicate which SEAbus devices or Siemens protective relays are con- nected to port 2 and which PLC registers they are communicating with.
