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5.Configuring the FieldServer as a Carrier DataLink Server
For a detailed discussion on FieldServer configuration, please refer to the FieldServer Instruction Manual. The information that follows describes how to expand upon the factory defaults provided in the configuration files included with the FieldServer (See “.csv” sample files provided with the FieldServer).
This section documents and describes the parameters necessary for configuring the FieldServer to communicate with a Carrier DataLink Client.
The FieldServer can be configured to emulate a Carrier DataLink Device. The use is able to define a variable number of data tables, allocating a table name a variable number of variables. The FieldServer may be polled and will respond like a DataLink device. Remote clients can force variable states by ending write variable commands.
The FieldServer does not emulate any of the alarm buffer/history features of the DataLink Device.
All variables may be read or written without restriction.
The configuration file tells the FieldServer about its interfaces, and the routing of data required. In order to enable the FieldServer for Carrier DataLink communications, the driver independent FieldServer buffers need to be declared in the “Data Arrays” section, the FieldServer virtual node(s) needs to be declared in the “Server Side Nodes” section, and the data to be provided to the clients needs to be mapped in the “Server Side Map Descriptors” section. Details on how to do this can be found below.
Note that in the tables, * indicates an optional parameter, with the bold legal value being the default.
5.1.Server Side Connection Descriptors
Section Title |
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Connections |
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Column Title | Function | Legal Values | |
Port | Specify which port the device is | ||
| connected to the FieldServer |
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Baud* | Specify baud rate | 300, 600 , 1200, 2400, 9600 | |
(Vendor limitation) | |||
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Parity* | Specify parity | None (Vendor limitation) | |
Data_Bits* | Specify data bits | 8 (Vendor limitation) | |
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Stop_Bits* | Specify stop bits | 1 (Vendor limitation) | |
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Protocol | Specify protocol used | CarrrierDL | |
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Handshaking* | Specify hardware handshaking | None |
3Not all ports shown are necessarily supported by the hardware. Consult the appropriate Instruction manual for details of the ports available on specific hardware.
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