Filter
Top Products
FS
-
8700
-
82 Carrier DataLink
Page
24
of
31
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
State Word Value State Word Value
OFF 0 OFF-CCN 2
OPEN 1 OFF-time 3
CLOSE 0 Emergency 4
CLOSED 0 ON-local 5
ABNORMAL 1 ON-CCN 6
NORMAL 0 ON-time 7
ALARM 1 Redline 1
STOP 0 Shed 2
START 1 DSABLE 0
YES 1 LOCAL 0
NO 0 REMOTE 1
If the driver doesn’t recognize the state word it stores the characters of the state word as
decimal values based on their ASCII value. The number of characters stored is
dependent on the length parameter.
For example, say the driver responds, reporting a variable to be a state ‘INCREDIBLE’.
If the length parameter of the polling map descriptor is 1 then the driver stores a value of
73 (An uppercase ‘I’ is the seventy third character in the ASCII alphabet.). If the length
was 2 then the driver would also store the value 78 in the next array. The driver will store
a maximum of 100 characters. The driver recognizes discrete state words by checking
the 1
st
character of the value field. If it is a non-digit then it is regarded as a state word.
Appendix A.4.2. Extending the List of Discrete State Words
You can extend the list of state words the driver recognizes by modifying the
configuration file.
The following example adds three state words. If a device reports the state of the
variable as LIGHT then the driver will store the value of 1, if on the other hand the
state is reported as DARK then the driver will store the value zero.
Driver_Table
Carrier_Attr_State_Name, Carrier_Attr_State_Value, Protocol
LIGHT , 1 , CarrierDL
DARK , 0 , CarrierDL
You can use this method to change the values of any of the driver’s default state words
by duplicating the word and specifying a new value in the configuration file.
Protocol must be
defined on every
line.
Keyword
starts a new
section of
the CSV file.
State Words. The
name will be
stripped of all
spaces between
the last character
and the comma.
Normally the values
will be 1 or zero for
the on/off states but
the driver does not
restrict the value.