FieldServer FS-8700-82 Driver Limitations and Exclusions, As a client, As a server, General

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FS-8700-82 Carrier DataLink

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5.4.Driver Limitations and Exclusions

As a client:

∙The Carrier DataLink driver is not capable of polling for alarm data. (The RA and AV functions are not implemented).

∙The Carrier DataLink driver dos not validate table or variable names.

∙The Carrier DataLink driver does not support the Read Table command with the /C or /N options.

∙The Carrier DataLink driver records a timeout if the DataLink device does not provide the ‘?’ prompt within the user-configurable timeout period.

∙Write-thru’s are not supported. The reason for this is that the driver read a composite data set and the client side Map Descriptors do not contain enough information to format

awrite.

As a server:

∙The Carrier DataLink driver is not capable of serving alarm data. (RA and AV polls produce an error response)

∙The driver cannot set a discrete variable’s state unless it is set a value of one or zero.

∙The driver server does not understand write table or write variable requests where the requested state is a word like ON or OFF.

∙The Carrier DataLink driver does not validate values or states, it simply stores the values.

∙All variables are may be read and written without limitation. The driver has not implemented the Courier notion of Force Levels.

∙There is no command buffer. One command can be processed at a time.

∙The driver responds to all Read Table commands as if the /Y option was used. The driver does not support the /C or /N options.

∙The Carrier DataLink driver does not support the control character commands CTRL- C/S/Q

General

∙The Carrier DataLink driver is not capable of configuring the DataLink device. Software provided by the Carrier Corporation is required to do this. The DataLink device requires configuration, so that connects to the appropriate CCN devices on the CCN communications network.

∙The driver cannot be configured to act as what the Carrier Corporation identify as an ‘Alarm Acknowledger’.

∙If the total length of the response from a read table query is more than 3000 bytes long, the driver will produce an error.

FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldserver.com Tel: (408) 262-2299 Fax: (408) 262-9042 Toll_Free: 888-509-1970 email: support@fieldserver.com

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Contents FS-8700-82 Carrier DataLink Table of Contents Carrier DataLink Description FS-8700-82 Carrier DataLinkProvided by Suppler of 3 rd Party Equipment FieldServer TechnologiesHardware Connections Section Title Configuring the FieldServer as a Carrier DataLink ClientData Arrays/Descriptors Column Title Function Legal ValuesNone Client Side Connection DescriptionsFS-8700-82 Carrier DataLink Example SecondClient Side Node Descriptors Column Function Legal Values TitleRDBC, WRBC, Wrbx TZONE1’ Driver Related Map Descriptor ParametersTiming Parameters ‘EVERYTHING’Map Descriptor Example 1 Read a Table Map Descriptor Example 2 Read a Variable Map Descriptor Example 3 Write a VariableMap Descriptor Example 4 Write Day of Week DOW or Time Configuring the FieldServer as a Carrier DataLink Server Server Side Connection DescriptorsServer Side Nodes Driver Specific Map Descriptor Parameters Timing Parameters Map Descriptor Example As a server Driver Limitations and ExclusionsAs a client GeneralAppendix A. Advanced Topics Appendix A.1. Table Names Equipment Type Table NameFS-8700-82 Carrier DataLink Equipment Type Table Name Dadump DEV 02 Display Appendix A.3.2. Client reads a variable Appendix A.3. Map Descriptor Length ExplainedAppendix A.3.1. Client Reads a Table Appendix A.3.3. Client writes a variableAppendix A.4.2. Extending the List of Discrete State Words FS-8700-82 Carrier DataLinkPage 24Appendix A.4.5. Occupancy Strings / Values Appendix A.4.3. Time ValuesAppendix A.4.4. Numeric Values Appendix A.5. Timing ConsiderationsAppendix B. Carrier DataLink Device Error Response Message Explanation ActionNack Appendix C. Driver Notes Appendix C.1. Driver Stats DacarrierstatsOffset Description Appendix D. Driver Error Messages Error Message ExplanationEverything FS-8700-82 Carrier DataLink Error Message Explanation This page Intentionally Left Blank
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