FieldServer Modbus Plus FS-8700-02 Versionshinweis

A Sierra Monitor Company

APPLICABILITY & EFFECTIVITY

Effective for all systems manufactured after May 1, 2001

Instruction Manual Part Number FS-8700-02

Version 1.00

Revision 1a

5/24/2002

Driver Manual

(Supplement to the FieldServer Instruction Manual)

FS-8700-02 Modbus Plus

FS-8700-02 Modbus Plus Driver Manual

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

Visit our website: www.fieldserver.com E-mail: [email protected]

Page Index

Table of Contents

1. Modbus Plus Description.............................................................................................................1

1.1 Hardware/Software...............................................................................................................1

2. FieldServer as a Modbus Plus Client ............................................................................................3

2.1 Hardware Connections ..........................................................................................................3

2.2 Configuration File Structure...................................................................................................3

2.2.1 Data Arrays.......................................................................................................................3

2.2.2 Client Side Connections .....................................................................................................3

2.2.3 Client Side Nodes..............................................................................................................3

2.2.4 Client Side Map Descriptors...............................................................................................4

3. FieldServer as a Modbus Plus Server............................................................................................5

3.1 Hardware Connections ..........................................................................................................5

3.2 Configuration File Structure...................................................................................................5

3.2.1 Data Arrays.......................................................................................................................5

3.2.2 Server Side Connections ....................................................................................................5

3.2.3 Server Side Nodes.............................................................................................................5

3.2.4 Server Side Map Descriptors..............................................................................................6

3.3 Examples of FieldServer setup for typical clients ....................................................................6

FS-8700-02 Modbus Plus Driver Manual

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

Visit our website: www.fieldserver.com E-mail: [email protected]

Page 1

1. Modbus Plus Description

The Modbus Plus driver allows the FieldServer to transfer data to and from devices using

Modbus Plus protocol. The FieldServer can emulate either a Server or Client.

The information that follows describes how to expand upon the factory defaults provided in the

configuration files included with the FieldServer.

The FieldServer is shipped with the switches set of a default address of 11.

Set the Modbus Plus address switches 1--6 to the address in your application. Switches 7 and 8

are not used.

Switch 1 is the least significant bit of the address. Switch 6 is the most significant bit. The address

will be one higher than the binary value you set into the switches.

1.1 Hardware/Software

Supplied by FieldServer

FieldServer

Technologies PART # DESCRIPTION

FS-8915-01 Adapter Card, Modbus Plus, Single Port. User must supply

Modbus Plus cables and connectors, including termination

connectors as documented by Group Schneider/Modicon

Provided by user

PART # DESCRIPTION

Refer to the Drawings in section 3 1

Modbus Plus Client, e.g. Wonderware, Intellution FIX, GE

Cimplicity, etc.2

1 If FieldServer used as Modbus Plus Client.

2 If FieldServer used as Modbus Plus Server.

Table 1: Modbus Plus Addresses and Switch Settings

Address

Switches 6--1 Address

Switches 6--1

10 0 0 0 0 0 23 0 1 0 1 1 0 45 1 0 1 1 0 0

20 0 0 0 0 1 24 0 1 0 1 1 1 46 1 0 1 1 0 1

30 0 0 0 1 0 25 0 1 1 0 0 0 47 1 0 1 1 1 0

40 0 0 0 1 1 26 0 1 1 0 0 1 48 1 0 1 1 1 1

50 0 0 1 0 0 27 0 1 1 0 1 0 49 1 1 0 0 0 0

60 0 0 1 0 1 28 0 1 1 0 1 1 50 1 1 0 0 0 1

70 0 0 1 1 0 29 0 1 1 1 0 0 51 1 1 0 0 1 0

80 0 0 1 1 1 30 0 1 1 1 0 1 52 1 1 0 0 1 1

90 0 1 0 0 0 31 0 1 1 1 1 0 53 1 1 0 1 0 0

10 0 0 1 0 0 1 32 0 1 1 1 1 1 54 1 1 0 1 0 1

11* 0 0 1 0 1 0 33 1 0 0 0 0 0 55 1 1 0 1 1 0

12 0 0 1 0 1 1 34 1 0 0 0 0 1 56 1 1 0 1 1 1

13 0 0 1 1 0 0 35 1 0 0 0 1 0 57 1 1 1 0 0 0

FS-8700-02 Modbus Plus Driver Manual

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

Visit our website: www.fieldserver.com E-mail: [email protected]

Page 2

Address

Switches 6--1 Address

Switches 6--1

14 0 0 1 1 0 1 36 1 0 0 0 1 1 58 1 1 1 0 0 1

15 0 0 1 1 1 0 37 1 0 0 1 0 0 59 1 1 1 0 1 0

16 0 0 1 1 1 1 38 1 0 0 1 0 1 60 1 1 1 0 1 1

17 0 1 0 0 0 0 39 1 0 0 1 1 0 61 1 1 1 1 0 0

18 0 1 0 0 0 1 40 1 0 0 1 1 1 62 1 1 1 1 0 1

19 0 1 0 0 1 0 41 1 0 1 0 0 0 63 1 1 1 1 1 0

20 0 1 0 0 1 1 42 1 0 1 0 0 1 64 1 1 1 1 1 1

21 0 1 0 1 0 0 43 1 0 1 0 1 0

22 0 1 0 1 0 1 44 1 0 1 0 1 1 * = default

Table 2: Summary of Modbus Data Access Commands

Function Code (Decimal) Command Name

1Read Discrete Output Status (0xxxx)

2Read Discrete Input Status (1xxxx)

3Read Output Register (4xxxx)

4Read Input Register (3xxxx)

5Force Single Coil (0xxxx)

6Preset Single Register (4xxxx)

15 Force Multiple Coils (0xxxx)

16 Preset Multiple Registers (4xxxx)

Modbus Plus Card Indicators

The Modbus Plus card has an indicator that flashes a repetitive pattern to show its network

communication status, plus two indicators which identify communication errors on the two

Modbus Plus cable paths. Note that one error indicator will be lit normally in single-cable

installations, showing that a second cable does not exist.

Table 3: Modbus Plus Active Indicator Patterns

Indicator Pattern (Green) Status

Six flashes/second Normal operating state. All nodes on a healthy

network flash this pattern

One flash/second The node is off-line. After being in this state for 5

seconds, the node attempts to go to its normal

operating state.

Two flashes, then OFF for 2

seconds The node detects the network token being passed

among other nodes, but it never receives the

token.

Three flashes, then OFF for

1.7 seconds The node does not detect any token passing on the

network.

Four flashes, then OFF for

1.4 seconds The node has detected another node using the

same address.

FS-8700-02 Modbus Plus Driver Manual

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

Visit our website: www.fieldserver.com E-mail: [email protected]

Page 3

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.

FS-8700-02 Modbus Plus Driver Manual

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

Visit our website: www.fieldserver.com E-mail: [email protected]

Page 4

2.2.4 Client Side Map Descriptors

Section Title

Map_Descriptors

Column Title Function Legal Values

Map_Descriptor_Name Name of this Map Descriptor Up to 32

alphanumeric

characters

Data_Array_Name Name of Data Array where

data is to be stored in the

FieldServer

One of the Data Array

names from “Data

Array” section above

Data_Array_Offset Starting location in Data

Array 0 to maximum

specified in “Data

Array” section above

Function Function of Client Map

Descriptor RDBC

Node_Name Name of Node to fetch data

from One of the node

names specified in

“Client Node

Descriptor” above

Address Starting address of read block 40001, 30001, etc

Length Number of items to read 1 -125

Data_Array_Low_Scale* Scaling zero in Data Array -32767 to 32767,

default 0

Data_Array_High_Scale* Scaling max in Data Array -32767 to 32767,

default 100

Node_Low_Scale* Scaling zero in Connected

Node -32767 to 32767,

default 0

Node_High_Scale* Scaling max in Connected

Node -32767 to 32767,

default 100

FS-8700-02 Modbus Plus Driver Manual

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

Visit our website: www.fieldserver.com E-mail: [email protected]

Page 5

3. FieldServer as a Modbus Plus Server

3.1 Hardware Connections

Refer to the Drawings in section 4

Configure the Modbus Plus client according to manufacturer’s instructions (refer to

section below on examples of FieldServer setup for typical clients

3.2 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.

3.2.1 Data Arrays

SectionTitle

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

3.2.2 Server Side Connections

Section Title

Connections

Column Title Function Legal Values

Adapter Adapter name MBP

Internal Path Modbus Plus data path 1 -8

3.2.3 Server Side Nodes

Section Title

Nodes

Column Title Function Legal Values

Node_Name Provide name for node Up to 32

alphanumeric

characters

Node_ID Node ID of virtual server node 1 –255

Protocol Specify protocol used Modbus Plus

FS-8700-02 Modbus Plus Driver Manual

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

Visit our website: www.fieldserver.com E-mail: [email protected]

Page 6

3.2.4 Server Side Map Descriptors

Section Title

Map_Descriptors

Column Title Function Legal Values

Map_Descriptor_Name Name of this Map Descriptor Up to 32

alphanumeric

characters

Data_Array_Name Name of Data Array where

data is to be stored in the

FieldServer

One of the Data Array

names from “Data

Array” section above

Data_Array_Offset Starting location in Data

Array 0 to maximum

specified in “Data

Array” section above

Function Function of Client Map

Descriptor Server

Node_Name Name of Node to fetch data

from One of the node

names specified in

“Client Node

Descriptor” above

Address Starting address of read block 40001, 30001, etc

Length Number of items to read 1 -125

Data_Array_Low_Scale* Scaling zero in Data Array -32767 to 32767,

default 0

Data_Array_High_Scale* Scaling max in Data Array -32767 to 32767,

default 100

Node_Low_Scale* Scaling zero in Connected

Node -32767 to 32767,

default 0

Node_High_Scale* Scaling max in Connected

Node -32767 to 32767,

default 100

3.3 Examples of FieldServer setup for typical clients

MSTR Example: Modbus Plus Node

This example shows a Modicon Modsoft screen for an MSTR function in a Modbus Plus

node. It writes one register of data to a virtual node in the FieldServer.

HThe MSTR Function Code specifies a Write operation

HOne register of data is to be transferred

HThe destination register is 40000 (addressed as register 1).

HThe FieldServer’s node address is 1. Note that the decimal value 1025

equals 0401 hexadecimal, addressing a Modbus Plus Network Option

Module (NOM) in backplane slot 04 and a node at address 01.

HThe destination index is 28. The FieldServer will forward the message to

the TCP node whose IP address is in this location in the FieldServer’s TCP

Mapping table.

FS-8700-02 Modbus Plus Driver Manual

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

Visit our website: www.fieldserver.com E-mail: [email protected]

Page 7

MSTR in Modbus Plus Node

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