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FS-8700-01 Modbus RTU/ASCIIFS-8700-01_Modbus_RTU.doc Driver Manual Page 7 of 21

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5.2 Client Side Node Parameters

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

Protocol

Specify protocol used

Modbus RTU

Modbus_RTU

Modbus ASCII

MB_ASCII

Port

Specify which port the device is connected to the FieldServer

P1-P8, R1-R2

Address_Type

Specify Register Mapping Model

ADU,PDU, -,

Modicon_5digit

Write_Fnc*

Set to Multiple if Remote Server Node only supports Write Multiple

function code 15 & 16

Multiple, -,

Write_Length*

Set to Map Descriptor Length if write-thru operation should write

all registers as specified by Map Descriptor length.

By default write-thru writes a single register.

If Write_Length also specified on Map Descriptor, Map Descriptor’s

parameter will be used.

Map Descriptor Length, -,

Example:

// 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

, P1

,ADU

Modbus device 2

, 2

, Modbus_RTU

, P1

,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

, P1

Optional for Modicon 5 digit devices

Change protocol to MB_ASCII to use Modbus ASCII protocol

1 2 3 4 5 6 7 8 9 10 11 12 ... 20 21

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