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FieldServer FS-8700-82 Appendix A.2. Using the Carrier Datalink Driver to Obtain Field Names

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FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com

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Appendix A.2. Using the Carrier Datalink Driver to Obtain Field Names

The Carrier Datalink driver can be used to obtain a list of variable names for a given table using the following Map Descriptors. It

is recommended that these Map Descriptors are removed from the configuration after the variable names h ave been obtained as

they will consume resource and processing time.

The following example illustrates a Map Descriptor which reads a table and dumps the response in ASCII format to a Data Array

which can be browsed using RUINET (Refer to RuiNet Manual)

Data_Arrays

Data_Array_Name,

Data_Format,

Data_Array_Length

DA_DUMP , BYTE , 2000

Map Descriptors

Map_Descriptor_Name,

Data_Array_Name,

Data_Array_Offset,

Function,

Node_Name, Length,

Scan_Interval,

Table_Name

Field_Name, Storet_As

Md1 , DA_DUMP , 0 , rdbc , FAN01 , 1000 ,

5.0s, DISPLAY , EVERYTHING, Ascii

This is what tells the driver to dump the

table, its variables names and variable

descriptions in ASCII format.

The s=data array DA_DUMP has been

defined with format BYTE. When viewing this

table with RUINET display the array in

‘STRING’ format so that you can read it.

Contents

Main Driver Manual (Supplement to the FieldServer Instruction Manual) FS-8700-82 Carrier DataLink TABLE OF CONTENTS 1. Carrier DataLink Description 2. Driver Scope of Supply 2.1. Supplied by FieldServer Technologies for this driver 2.2. Provided by Suppler of 3rd Party Equipment 3. Hardware Connections 4. Configuring the FieldServer as a Carrier DataLink Client 4.1. Data Arrays/Descriptors 4.2. Client Side Connection Descriptions 4.3. Client Side Node Descriptors 4.4. Client Side Map Descriptors 4.4.1. FieldServer Related Map Descriptor Parameters 4.4.2. Driver Related Map Descriptor Parameters 4.4.3. Timing Parameters 4.4.4. Map Descriptor Example 1 Read a Table 4.4.5. Map Descriptor Example 2 Read a Variable 4.4.6. Map Descriptor Example 3 Write A Variable 4.4.7. Map Descriptor Example 4 Write Day of Week (DOW) or Time 5. Configuring the FieldServer as a Carrier DataLink Server 5.1. Server Side Connection Descriptors 5.2. Server Side Nodes 5.3. Server Side Map Descriptors 5.3.1. FieldServer Specific Map Descriptor Parameters 5.3.2. Driver Specific Map Descriptor Parameters 5.3.3. Timing Parameters FS-8700-82 Carrier DataLink Page 17 of 31 5.3.4. Map Descriptor Example. nodes match). 5.4. Driver Limitations and Exclusions FS 8700 82 Carrier DataLink Appendix A. Advanced Topics Appendix A.1. Table Names Equipment Type Table Name FS 8700 82 Carrier DataLink Page Appendix A.2. Using the Carrier Datalink Driver to Obtain Field Names Page Appendix A.3. Map Descriptor Length Explained Appendix A.3.1. Client Reads a Table: Appendix A.3.2. Client reads a variable: Appendix A.3.3. Client writes a variable: Appendix A.3.4. Server: State Word Value State Word Value Appendix A.4.2. Extending the List of Discrete State Words Appendix A.4.3. Time Values Appendix A.4.4. Numeric Values Appendix A.4.5. Occupancy Strings / Values Appendix A.5. Timing Considerations Appendix B. Carrier DataLink Device Error Response Appendix C. Driver Notes Appendix C.1. Driver Stats Page Appendix D. Driver Error Messages