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Appendix C.4. “Illegal” Characters in Network Variable Names
Spaces Spaces may not be used in Network Variable Names. The driver automatically replaces all spaces with underscores at
Brackets Lonmaker truncates a name from where a bracket is used. e.g. a name like nviTest[1]Input shows as nviTest . Brackets are therefore not able to be used in Network Variable Names.
Appendix C.5. Circon_SI Limitations
Circon_SI does not recognize whitespace; %; -
The maximum number of Network Variables under Circon_SI is limited to 255 per node.
Set the Connection_Type parameter in the configuration file per the following example. This will ensure that all illegal characters are replaced with underscores, and that the number of Network Variables per Node is limited to 255 in the configuration.
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// | Client Side Connections |
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Connections |
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Adapter | ,Protocol | ,Connection_Type | |
LonWorks | ,LonWorks | ,Circon_SI | |
Appendix C.6. Service types currently supported for network variable messages
Currently the service type for network variable update messages is fixed to acknowledged service. Request- response service is used for network variable poll and network management fetch messages.
Appendix C.7. Combining Explicit and Implicit
To ensure undisturbed communication between the network management tool and the FieldServer during the commissioning, binding or monitoring processes, the timeouts of the explicitly addressed variables (Map Descriptors) might need to be set to values lower than the message timeouts used by the network management tool (LonMaker for Windows).
LonWorks FieldServer Performance
No |
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| Max |
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1 |
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| FieldServer startup time with 4096 network variables |
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| 6.5 |
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2 |
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| Time to commission FieldServer with 4096 network variables |
| - |
| - |
| 40 |
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| Minutes |
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3 |
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| Time | to | complete | a | network variable updFieldServersbetween | two | - |
| 40 |
| - |
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| FieldServers (acknowledged service) |
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4 |
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| Time | to | complete | a | networFieldServersoll message between | two | - |
| 125 |
| - |
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| FieldServers (request/response service) |
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5 |
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| Time to complete a network manageFieldServers variable fetch message | - |
| 125 |
| - |
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| between two FieldServers (request/response service) |
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FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web: www.fieldserver.com Tel: (408) 262 2299 Fax: (408) 262 2269 Toll Free: (888) 509 1970 email: support@fieldserver.com