WAGO 750-8 Series Manual de usuario

Anwendungshinweis

WAGO-I/O-SYSTEM 750

ETHERNET Controller 750-8xx

Connecting Multiple WRF06LCD RS-485 Multifunction

Room Operating Units

Modbus®from Thermokon

to the WAGO-I/O-SYSTEM

Version: 10.04.2019

2 Imprint

Anwendungshinweis

WAGO Kontakttechnik GmbH & Co. KG

Hansastraße 27

D-32423 Minden

Phone: +49 (0) 571/8 87 –0

Fax: +49 (0) 571/8 87 –1 69

Email: [email protected]

Web: http://www.wago.com

Technical Support

Phone: +49 (0) 571/8 87 –4 45 55

Fax: +49 (0) 571/8 87 –84 45 55

Email: [email protected]

Every conceivable measure has been taken to ensure the accuracy and

completeness of this documentation. However, as errors can never be fully

excluded, we always appreciate any information or suggestions for improving the

documentation.

We wish to point out that the software and hardware names, as well as the

trademarks of companies used and/or mentioned in the present manual, are

generally protected by trademark or patent.

Table of Contents 3

Anwendungshinweis

Table of Contents

1Important Notes........................................................................................... 4

1.1 Legal Principles ............................................................................................. 4

1.1.1 Subject to Change.......................................................................................... 4

1.1.2 Copyright ....................................................................................................... 4

1.1.3 Personnel Qualification.................................................................................. 4

1.1.4 Intended Use .................................................................................................. 4

1.2 Scope of Applicability ................................................................................... 5

1.3 Symbols.......................................................................................................... 5

1.4 Number Notation ........................................................................................... 6

1.5 Font Conventions........................................................................................... 6

2Description.................................................................................................... 7

3Material......................................................................................................... 7

4Setup.............................................................................................................. 8

5Sample Program........................................................................................... 9

5.1 Tasks.............................................................................................................. 9

5.2 Programming.................................................................................................. 9

5.3 Visualization Interface................................................................................. 12

6Configuration Interface............................................................................. 13

Required Libraries.............................................................................................. 20

List of Figures...................................................................................................... 20

List of Tables........................................................................................................ 20

4 Table of Contents

Anwendungshinweis

1 Important Notes

To ensure fast installation and start-up of the units, we strongly recommend that

the following information and explanations be carefully read and adhered to.

1.1 Legal Principles

1.1.1 Subject to Change

WAGO Kontakttechnik GmbH & Co. KG reserves the right to make any

alterations or modifications that serve the purpose of technical progress. WAGO

Kontakttechnik GmbH & Co. KG owns all rights arising from granting patents or

from the legal protection of utility patents. Third-party products are always

mentioned without any reference to patent rights. Thus, the existence of such

rights cannot be excluded.

1.1.2 Copyright

This documentation, including all figures and illustrations contained therein, is

subject to copyright protection. Any use of this documentation that infringes upon

the copyright provisions stipulated herein is prohibited. Reproduction, translation,

electronic and phototechnical filing/archiving (e.g., photocopying) and changes

require the written consent of WAGO Kontakttechnik GmbH & Co. KG, Minden,

Germany. Non-observance will entail the right of claims for damages.

1.1.3 Personnel Qualification

The use of the product described in this document is exclusively geared to

specialists having qualifications in PLC programming, electrical specialists or

persons instructed by electrical specialists who are also familiar with the

appropriate current standards. WAGO Kontakttechnik GmbH & Co. KG assumes

no liability resulting from improper action and damage to WAGO products and

third-party products due to non-observance of the information contained in this

document.

1.1.4 Intended Use

For each individual application, the components are supplied from the factory

with a dedicated hardware and software configuration. Modifications are only

permitted within the framework of the possibilities documented in this document.

All other changes to the hardware and/or software and the non-conforming use of

the components entail the exclusion of liability on part of WAGO Kontakttechnik

GmbH & Co. KG.

Please send your requests for modified and new hardware or software

configurations directly to WAGO Kontakttechnik GmbH & Co. KG.

Important Notes 5

Anwendungshinweis

1.2 Scope of Applicability

This application note is based on the stated hardware and software from the

specific manufacturer, as well as the associated documentation. This application

note is therefore only valid for the described installation.

New hardware and software versions may need to be handled differently.

Please note the detailed description in the specific manuals.

1.3 Symbols

Attention

Attention!

Boundary conditions that must always be observed to ensure smooth

operation.

Note

Important note!

Routines or advice for efficient use of a device and software optimization.

Information

Additional information

Refers to additional information which is not an integral part of this

documentation (e.g., the Internet).

6 Table of Contents

Anwendungshinweis

1.4 Number Notation

Table 1: Number Notation

Number System

Example

Comment

Decimal

100

Normal notation

Hexadecimal

0x64

C notation

Binary

'100'

'0110.0100'

In quotation marks,

nibble separated with dots

1.5 Font Conventions

Table 2: Font Conventions

Font Type

Explanation

italic

Names of paths and files are shown in italics, e.g.:

C:\Programs\WAGO-I/O-CHECK

Menu options are shown in bold, e.g.:

Save

A “greater than” between two names characterizes the selection of a

menu option from a menu, e.g.:

File > New

Input

Names of input or selection fields are shown in bold, e.g.:

Start of measurement range

“Value”

Input or selection values are shown in quotation marks, e.g.:

Enter the value “4 mA” under Start of measurement range.

[Button]

Button labels in the dialogs are displayed in bold and enclosed in

square brackets, e.g.:

[Input]

[Key]

Key labels on the keyboard are displayed in bold and enclosed in

square brackets, e.g.:

[F5]

Description 7

Anwendungshinweis

2 Description

The fundamental way of carrying out the communication between the WAGO I/O

System and the WRF06 RS-485 Modbus®multifunction room operating unit from

Thermokon is described in this application note. In addition, this application note

describes how the visualization interface in the library can be used to configure

the room operating unit.

3 Material

Table 3: Components

Supplier

Qty.

Name

Item No.

WAGO

Fieldbus Controller

750-871

WAGO

4-Channel Digital Input Module, 24 VDC

750-402

WAGO

4-Channel Digital Output Module, 24 VDC

750-504

WAGO

RS-232-/RS-485 module (configurable)

750-652

WAGO

Bus end module

750-600

WAGO

WAGO-I/O-PRO CAA

759-333

Thermokon

WRF06LCD DO2R

WRF06LCD

RS-485

Modbus®

DO2R

Optional components:

Table 4: Optional Components

Supplier

Qty.

Name

Item No.

WAGO

USB communication cable

750-923

Note

Node structure

The node structure described is only an example for the possible control of

WRF06LCD multifunction room operating units. The modules may be

exchanged as required by the respective application.

8 Table of Contents

Anwendungshinweis

4 Setup

Figure 1: Connection Diagram WAGO-IO-SYSTEM/Thermokon WRF06LCD

Communication Cable 750-923

Slave 2

Slave 1

A B +

24 VDC

A B +

24 VDC

Sample Program 9

Anwendungshinweis

Note

Access options

For the visualization of the WAGO-I/O-PRO CAA, it is essential to

establish a connection between the PC and the WAGO fieldbus controller.

Depending on the fieldbus controller used, two options are available. The

first option is available for all types of fieldbus controllers. Connection to

the fieldbus controller's service interface is established via 750-923 USB

communication cable. For the ETHERNET fieldbus controllers (e.g. KNX

IP and BACnet/IP), there is the option of connecting via the ETHERNET

interface.

5 Sample Program

5.1 Tasks

The WAGO-I/O-SYSTEM is to read and configure two Thermokon WRF06LCD

multifunction room operating units WRF06LCD RS-485 Modbus®. The available

ThermokonWRF06_01.lib library is used for this purpose.

5.2 Programming

The FbWRF06Master function block is used to establish a connection between

the controller and room operating units. This connection is implemented using an

RS-485 module. The individual room operating units are addressed cyclically

using the FbWRF06Master.

The data to be received or sent is exchanged between the FbWRF06Master and

all other WRF06-function blocks via the “typWRF06” input/output variable.

The multifunction room operating units can be configured via the

FbWRF06Config function block in conjunction with the associated

ConfigWRF06 visualization.

Note

Function Blocks

Both “FbWRF06Master” and “FbWRF06Config” function blocks are only

allowed to be requested once per bus segment.

10 Table of Contents

Anwendungshinweis

Figure 2: WRF06 Master and Configuration Module

One instance of the FbWRF06 function block is required for each room operating

unit to be addressed. The Modbus®address of the required slave is set at the

“bSlaveNo” input. “1” for Modbus®slave one.

The data of the room operating unit to be addressed is read via this function block

and the input values of the unit can be changed from the controller.

Among other things, the data read includes the current temperature, room

occupancy and set points. The possible inputs in the room operating unit include

the information saved in the input register of the device.

Note

Input and output values

More information about the input and output registers is available in the

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