FieldServer Metasys N2 FS-8700-19 User Manual
Page 16
FS-8700-19_Metasys_N2 Driver Manual
Page 16 of 51
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5.
Configuring the FieldServer as a Metasys N2 Server
For a detailed discussion on FieldServer configuration, please refer to the FieldServer
Configuration Manual. The information that follows describes how to expand upon the factory
defaults provided in the configuration files included with the FieldServer (See “.csv” files on the
driver diskette).
This section documents and describes the parameters necessary for configuring the FieldServer
to communicate with a Metasys N2Open Client. Note that only the N2Open variation of the
N2 protocol may be used when configuring the FieldServer as a Server.
The configuration file tells the FieldServer about its interfaces, and the routing of data required.
In order to enable the FieldServer for Metasys N2 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
Connections
Column Title
Function
Legal Values
Port
Specify which port the device is
connected to the FieldServer
P1-P8, R1-R2
4
Protocol
Specify protocol used
Metasys_N2
Baud*
Specify baud rate
9600
Parity*
Specify parity
None
Data_Bits*
Specify data bits
8
Stop_Bits*
Specify stop bits
1
Handshaking*
Specify hardware handshaking
None
Poll _Delay*
Time between internal polls
0
Line_Drive_On*
Duration of RTS assert before
start of transmission
0.001s
Line_Drive_Off*
Duration of RTS assert after
end of transmission
0.000s
Example
//
Server Side Connections
Connections
Port,
Protocol
P8,
Metasys_N2
4
Not all ports shown are necessarily supported by the hardware. Consult the appropriate Instruction
manual for details of the ports available on specific hardware.