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FS-8700-01_Modbus_RTU_(T28700-01) Driver Manual Page 8 of 21
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
4.3. Client Side Node Descriptors
Section Title
Nodes
Column Title Function Legal Values
Node_Name Provide name for Node
Up to 32 alphanumeric
characters
Node_ID
Modbus station address of physical
Server Node
1-255
Modbus RTU
Modbus_RTU
Modbus ASCII
Protocol Specify protocol used
MB_ASCII
Port
Specify which port the device is
connected to the FieldServer
P1-P8, R1-R2
2
Node_Type
3
Set to Block_Mode if Remote Server
Node (RSN) only supports Write
Multiple – FC16 & FC15, and does
not support FC05 or FC06
Block_Mode
Address_Type
4
Specify Register Mapping Model
ADU,PDU, -, Modicon_5digit
Example:
Change protocol to MB_ASCII to use Modbus ASCII protocol
// Client Side Nodes
// For devices where 65536 addresses are available in each memory area.
Nodes
Node_Name, Node_ID, Protocol, Port Address_Type
Modbus device 1, 1, Modbus_RTU, P8 ADU
Modbus device 2, 2, Modbus_RTU, P8 PDU
// For devices where only 9999 registers are available in each memory area.
Nodes
Node_Name, Node_ID, Protocol, Port
Modbus device 3, 3, Modbus_RTU, P8
3
If this parameter is not specified the default function codes will be FC 05 (Single_Coil) and FC 06
(Single_Register). Refer to Appendix A.3 for more information.
4
Optional for Modicon 5 digit devices