ProSoft Technology PS-QS-1x10-0781 - Manual (Page 44)

FieldServer Configuration Manual Page 44 of 90
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]
6 NODE MANAGEMENT
6.1 Data Array Functions
6.1.1 Node Status Function
The Node Status Function is a Data Array function which provides the communication status between the
FieldServer and the actively mapped Nodes. The online status of a particular Node is indicated in the Node Status
Data Array. If the communication status is good then the Node Status is set to 1. The communication status goes
bad if it does not receive a response to a poll. The offset number in the Data Array is equivalent to the station
address of the Node. Refer also to Section 9, Appendix B.2 and Appendix B.4.5.
Example:
If seven Nodes are connected to the FieldServer, when the Node with ID 5 is online, the sixth bit of the Data Array
configured for the function Node Status will be set to 1. (zero bit is unused)
Typical Data Array Parameters are:
Section Title
Data_Arrays
Column Title
Function Legal Values
Data_Array_Name Provide name for Data Array Up to 15 alphanumeric characters
Data_Format Provides Data format Bit
Data_Array_Length Number of Data Objects 1 to 256
Data_Array_Function Special function for Data Array Node_Status
Data Arrays
Data_Array_Name , Data_Format , Data_Array_Length , Data_Array_Function
DA_Comm_OK
, Bit , 256 , Node_Status