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FS-8700-48 Fike Cheetah Manual Page 9 of 36
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com
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4. Configuring the FieldServer as a Cheetah Device Client
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” sample
files provided with the FieldServer)
This section documents and describes the parameters necessary for configuring the FieldServer
to communicate with a Cheetah Device Server.
The configuration file tells the FieldServer about its interfaces, and the routing of data required.
In order to enable the FieldServer for Cheetah Device communications, the driver independent
FieldServer buffers need to be declared in the “Data Arrays” section, the destination device
addresses need to be declared in the “Client Side Nodes” section, and the data required from
the Servers needs to be mapped in the “Client 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.
4.1. Data Arrays
Section Title
Data_Arrays
Column Title Function Legal Values
Data_Array_Name
Provide name for Data
Array
Up to 15 alphanumeric characters
Data_Format
Provide data format. Each
Data Array can only take
on one format.
FLOAT, BIT, UInt16, SInt16,
Packed_Bit, Byte, Packed_Byte,
Swapped_Byte
The Cheetah driver always sets Data
Array elements to a zero or one. Thus,
the use of bit arrays is suggested but is
not mandatory.
Data_Array_Length
Number of Data Objects.
Must be larger than the
data storage area required
for the data being placed in
this array.
1-10,000. If you use the 'All' keyword
when setting the parameter
Cheet_Zone/Device then the minimum
length is 128.
Example
// Data Arrays
Data_Arrays
Data_Array_Name, Data_Format, Data_Array_Length
DA_AI_01, UInt16, 200
DA_AO_01, UInt16, 200
DA_DI_01, Bit, 200
DA_DO_01, Bit, 200