FieldServer FS-8700-02 instruction manual FieldServer as a Modbus Plus Client Hardware Connections

FS-8700-02 Modbus Plus Driver Manual

2. FieldServer as a Modbus Plus Client

2.1 Hardware Connections

It is possible to connect a Modbus RTU device to any of the eight RS232 ports or two RS485 ports. These ports just need to be configured for Modbus RTU in the configuration file.

Configure the PLC according to manufacturer’s instructions.

2.2 Configuration File Structure

Refer to section 4.1 of the Instruction Manual for a description of the operation principle of the FieldServer. The following tables describe parameters that need to be filled out in the configuration file. For convenience, a few example parameters already exist in the supplied PRIMSERV.CSV and SECDSERV.CSV files.

Note that * indicates an optional parameter, with the bold legal value being the default.

2.2.1	Data Arrays
	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	INT16, INT32, BIT,
			FLOAT
	Data_Array_Length	Number of Data Objects	1-10,000
2.2.2	Client Side Connections
	Section Title
	Connections
	Column Title	Function	Legal Values
	Adapter	Adapter name	MBP
2.2.3	Client Side Nodes
	Section Title
	Nodes
	Column Title	Function	Legal Values
	Node_Name	Provide name for node	Up to 32
			alphanumeric
			characters
	Route	Modbus Plus Path	Note 1*
	Protocol	Specify protocol used	Modbus Plus

Note 1: Refer to the Modicon user guide 890 USE 102 00 for details on path establishment. In general, the first number is the Destination BM85 MAC address, the second number represents the internal path, and the third number is the destination node. This varies if the BM85 is not connected to the FieldServer.

FieldServer Technologies 1991 Tarob Court, Milpitas, California 95035 (408) 262-2299 fax: (408) 262-9042

Visit our website: www.fieldserver.com E-mail: support@fieldserver.com

Page 3