FieldServer A Sierra Monitor Company FS-8700-123 - Manual (Page 18)

FS-8700-123 MetOne Particle Counter Driver Manual Page 18 of 22
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: [email protected]
Appendix A. Useful Features
Appendix A.1. Driver Operating and Error Statistics
These notes outline driver specific use of the normal driver operating stats documented in the FieldServer
Configuration Manual.
Timeouts: During normal polling a timeout can mean that the field device did not respond to the select
message (or the sub-device select message) or did not respond to the poll for data or the command poll.
Exception Stats: If the driver selects a device, sub-device or port and the return code from the device is
unexpected the this stat is incrmented by 1.
Ignored Stats: If the current record is read and there is more data than can be stored than specified by the
Length of the Map Descritor then this stat is incremented and message MET1#05 is printed. If a poll is
received for the current record but there isn’t one available, the device sends a response which also
increments the ignored stat but in this case there is no additional message printed in the error log.
The driver does not use the normal operating stats to count message and bytes received in response to
select / sub select messages.