FieldServer FS-8700-101 Manuale Utente

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FS-8700-101_Setra Model 370 Digital Pressure Gage Manual   
 
Page 22 of 23 
 
 
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 
Appendix C.2.  Standard Driver Stats 
Driver Statistics Recorded 
Explanation 
PLC Read Messages sent 
Number of message sent to the Gage 
PLC Write Messages sent 
Should be zero 
PLC Bytes sent 
Total number of bytes sent by the Client side driver 
PLC Message received 
Total number of messages of all types received (ACK, 
NAK, error response, normal response) on the Client side 
driver. 
PLC Bytes received 
Total number of bytes received by all message types on 
the Client side driver. 
Protocol 
Protocol errors are incremented when the Client side 
cannot correctly parse a response message from the 
Gage.  This includes responses that are formatted 
differently from what the driver expects, or messages that 
report the Gage is ‘unable’ or in setup mode. 
IC_Timeout 
Incoming message buffer experiences an excessive 
delay between incoming bytes 
Timeout 
Client side messages that were not responded to by a 
Server.  Possibly a communications error or a command 
was made to a unit that does not exist. 
Streaming 
Message size was too large for the input buffer.  This 
should never occur.  
Exception 
Increments when a ‘status’ response contains a line with 
insufficient information for storage but which may be a 
heading.