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McQuay Micro Tech Open Protocol Driver Manual Page 31 of 35
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
Appendix A.8. Statistics
The driver reports statistics according to the FieldServer standards. The following notes describe
some aspects of standard statistic reporting which are peculiar to this driver.
NAK Each time a negative acknowledgement message is received.
CHECKSUM Each time that a message is received that contains a non-ASCII character.
NOISE An acknowledgement message contains an unrecognized code.
NO START Each time a message is received that doesn’t begin with a space.
PROTOCOL All other errors are reported as protocol errors
In addition to the standard FieldServer communication statistics described above and in the
FieldServer User’s Manual, this driver can also expose some driver statistics by writing data to a Data
Array. A special Map Descriptor is required. The driver recognizes the Map Descriptor by its name
which must be "McQuay-stats”.
The driver stores the following data. The location in the Data Array is obtained by multiplying the
port number by 50 and then using the location offset indicated in the table below.
Location Statistic
0 MCQ_STAT_PASSWORD
10 MCQ_STAT_NAK
11 MCQ_STAT_NOISE
12 MCQ_STAT_NOISE_CODE
13 MCQ_STAT_NON_ASCII_CHARS
14 MCQ_STAT_BAD_START_BYTE
15 MCQ_STAT_OTHER_CMPLT_ERR
16 MCQ_STAT_CLIENT_BYTES_RCVD
17 MCQ_STAT_CLIENT_FRAGS_RCVD
18 MCQ_STAT_CLIENT_MSGSS_RCVD
19 MCQ_STAT_CLIENT_BYTES_SENT
20 MCQ_STAT_CLIENT_FRAGS_SENT
21 MCQ_STAT_CLIENT_MSGSS_SENT
22 MCQ_STAT_SERVER_BYTES_SENT
23 MCQ_STAT_SERVER_MSGSS_SENT
24 MCQ_STAT_SERVER_NAKS_SENT
The following example shows how this special Map Descriptor can be configured. You can copy this
section of text directly into your CSV file.