User Guide

Driver Manual Page 10 of 12
FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.fieldServer.com
Tel: [phone] Fax: [phone] Toll_Free: 888-509-1970 email: [e-mail]
4.3.4. Unscheduled Map Descriptor Example
The following Map Descriptor will read data from a PLC5.
// Server Side Map Descriptors
Map Descriptors
Map_Descriptor_Name, Data_Array_Name, Data_Array_Offset, Function, Node_Name, Block_Number, PCCC_Type, Address, Length
A1, DA_AI3, 0, RDBC, PLC5, 7, SINT, 33, 5
The following Map Descriptor will send data to the card to allow other nodes to read the data contained in the FieldServer’s Data
Array.
// Server Side Map Descriptors
Map Descriptors
Map_Descriptor_Name, Data_Array_Name, Data_Array_Offset, Function, Node_Name, Block_Number, PCCC_Type, Length Address,
A1, DA_AI3, 0, WRBC, Local, 7, SINT, 5 125,
Offset into the file
Offset into the file
(
N7:33
)
(N7:125)
Active Map Descriptor
polls the PLC regularly
(change to WRBC to write)
Remote Node
name of the PLC
to poll
PLC 5 file number to
read
(
N7:33
)
PLC 5 emulated file
number (7-39)
Node name whose MacId
matches the
System_Station_Address
FS-8700-24 ControlNet
Active Map Descriptor
transfers the data to or
from the card (change to
RDBC to read data
written by other nodes)