The NETx BMS Core Server provides a Modbus interface which can be used to integrate Modbus devices.NETx BMS Core Server supports the handling of Modbus discrete inputs, coils, holding registers, and input registers.
To define a Modbus device, first select "Device definitions " in Modbus menu within the NETx BMS Core Server.
Here you set up driver settings so that the NETx BMS Core Server is found as a Modbus device:
More information about Modbus device definitions fields can be found here.
Then, select "Modbus datapoint definitions " in Modbus menu, here the datapoint definitions can be added for each one of defined Modbus devices.
The structure of the Modbus datapoint definition can be found here.
To use an addressing scheme different to the standard Modbus memory addresses that start with address 0, an address mapping is possible.Select "Modbus mapping definitions " in Modbus menu . For each Modbus device, an individual address mapping can be specified.
The structure of the Modbus address mapping definition can be found here.
Afterwards,save all changes in Modbus tabs, NETx BMS Core Server will display a reinitialization message.Restart the NETx BMS Core Server again and open an Item Tree. All Modbus devices and objects are found under the sub tree "NETx\XIO\Modbus". Each device has one entry within the Item Tree. Below this entry, you will find a GATEWAY item which shows the connection state to the Modbus device. In addition, all selected objects are listed. As defined by the Modbus standard each folder represents the Modbus Datapoint type.
