Users Guide Owner manual

Extended Modbus OPC Server
Operation and Reference
Having a .MIF file is very handy. Connecting the MIF file to a device in the OPC tag
database will create the groups and signals automatically. This will save a tremendous
amount of time compared to creating them manually.
In the case of generic Modbus devices such as ABB Commander series instruments, you
have to create the groups and tags manually and should define their properties. Refer to
the Standard Modbus section of this chapter.
4.1.2 Extended Modbus Device Properties
Configure the properties of the MODCELL or MOD 30ML device in this dialog.
Figure 4 .2.
Extended Modbus
Device Properties
Name: Type a name for the device – you can type any name in the Name field.
Port: Select the serial communication port of the computer to which the device is
connected to in the Port field. Click on the down arrow in this field to show the drop-
down menu and then select the port (For example, COM1).
Timeout: Timeout value in ms is the time for which the OPC server tries to reestablish
communication with the device in the case of a communication failure. The default value
of 1000 ms should not need to be changed.
Address: Type the instrument’s Modbus address in the address field.
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