WAGO 750-654 Manuale utente

Fieldbus Independent

I/O Modules

Data Exchange Module

750-654, 750-654/000-001

Manual

Version 1.0.3

ii • General

WAGO-I/O-SYSTEM 750

I/O Modules

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

E-Mail: [email protected]

Web: http://www.wago.com

Technical Support

Phone: +49 (0) 571/8 87 – 5 55

Fax: +49 (0) 571/8 87 – 85 55

E-Mail: [email protected]

Every conceivable measure has been taken to ensure the correctness and com-

pleteness of this documentation. However, as errors can never be fully ex-

cluded, we would appreciate any information or ideas at any time.

E-Mail: [email protected]

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

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

generally trademark or patent protected.

Content •iii

WAGO-I/O-SYSTEM 750

I/O Modules

Content

1.1 Scope ........................................................................................................4

2I/O Modules.................................................................................................5

2.1 Special Modules ....................................................................................... 5

2.1.1 750-654, 750-654/000-001 [Data Exchange Module].........................5

2.1.1.1 Variations........................................................................................5

2.1.1.2 View................................................................................................ 5

2.1.1.3 Description......................................................................................6

2.1.1.4 Display Elements ............................................................................ 7

2.1.1.5 Schematic Diagram.........................................................................7

2.1.1.6 Technical Data ................................................................................ 8

2.1.1.7 Functional description..................................................................... 9

2.1.1.8 Process

Image ...............................................................................10

2.1.1.9 Data

Transfer ................................................................................11

3Use in Hazardous Environments.............................................................12

3.1 Marking Configuration Examples..........................................................13

3.1.1 Marking for Europe according to CENELEC and IEC .....................13

3.1.2 Marking for America according to NEC 500 ....................................16

3.2 Installation Regulations..........................................................................17

3.2.1 Special Conditions for Safe Operation of the ATEX and IEC Ex (acc.

DEMKO 08 ATEX 142851X and IECEx PTB 07.0064)..................18

3.2.2 Special conditions for safe use (ATEX Certificate TÜV 07 ATEX

554086 X) .......................................................................................... 19

3.2.3 Special conditions for safe use (IEC-Ex Certificate TUN 09.0001 X)21

3.2.4 Special conditions for safe use (ATEX Certificate DEKRA

11ATEX0203 X) ............................................................................... 23

3.2.5 ANSI/ISA 12.12.01 ........................................................................... 24

4 •0BI/O Modules

Scope

WAGO-I/O-SYSTEM 750

I/O Modules

1.1 Scope

This manual describes the Special Module 750-654, 750-654/000-001 Data

Exchange Module of the modular WAGO-I/O-SYSTEM 750.

Handling, assembly and start-up are described in the manual of the Fieldbus

Coupler. Therefore this documentation is valid only in the connection with the

appropriate manual.

750-654, 750-654/000-001 [Data Exchange Module] •5

Variations

WAGO-I/O-SYSTEM 750

I/O Modules

2 I/O Modules

2.1 Special Modules

2.1.1 750-654, 750-654/000-001 [Data Exchange Module]

2.1.1.1 Variations

Item-No. Designation Description

750-654 Data Exchange Module Baud rate: 62500 baud;

Parity: none; data bits: 8, stop bits: 1

750-654/000-001 Data Exchange Module

125 kBaud

Baud rate: 125000 baud;

Parity: none; data bits: 8, stop bits: 1

2.1.1.2 View

TxD

RxD

13 14

750-654

TxD

RxD

__ TxD

Data contacts

RxD

Common

(ground)

Shield

(screen)

TxD

Function

TxD

Shield

(screen)

RxD

Common

(ground)

___

Fig. 2.1.1-1: View g065400e

6 •750-654, 750-654/000-001 [Data Exchange Module]

Description

WAGO-I/O-SYSTEM 750

I/O Modules

2.1.1.3 Description

The data exchange module allows the exchange of data between different

fieldbus systems via multiplexing of a serial connection.

Two modules are a communication pair that is connected by means of two

twisted wire pairs. Each module is part of a fieldbus node.

The wiring to the communication partner is made by the connections TxD,

/TxD, RxD, /RxD and ground.

The screen connection is connected directly to the mounting rail.

The data exchange is done in full duplex operation, independent of the

fieldbus system used. The data of the output process image of the fieldbus

coupler/-controller is transmitted to the communication partner. This module

then transmits the data to the input process image of its fieldbus coupler/-

controller and vice versa.

Depending on the fieldbus coupler/-controller used, the data exchange module

allows for the exchange of 4 (5) bytes, one status byte and one control byte

between the fieldbus systems via multiplexing of a serial connection. The

delay which is caused by the multiplexor is ca. 5 ms with the module 750-654

and 2.5 ms with the module 750-654/000-001.

Three green LEDs signal readiness for operation and troublefree internal bus

communication as well as the condition of the signal transmission.

The interface guarantees high fail-safe characteristic by differential

transmission and electrically isolated signals.

Any configuration of the specialty modules is possible when designing the

fieldbus node. Grouping of module types is not necessary.

Attention

This module has no power contacts. For field supply to downstream I/O

modules, a supply module will be needed.

The data exchange module 750-654 and its variations can be used with all

couplers/controllers of the WAGO-I/O-SYSTEM 750 (except for the economy

types 750-320, -323, -324 and -327).

This description is valid for hardware and software version XXXX3A05.....

The version is specified in the manufacturing number, which is part of the

lateral marking of the module.

750-654, 750-654/000-001 [Data Exchange Module] •7

Display Elements

WAGO-I/O-SYSTEM 750

I/O Modules

2.1.1.4 Display Elements

LED Channel State Function

off No operational readiness or the

internal data bus communication is

interrupted

A Function

green Operational readiness and trouble-

free internal data bus

communication

off signal transfer TxDB TxD

green no signal transfer TxD

off signal transfer RxDD RxD

green no signal transfer RxD

Fig. 2.1.1-2: Display

Elements g065002x

1) The pulses are so short that the off status cannot or only hardly be

recognized with the eyes.

2.1.1.5 Schematic Diagram

Shield

(screen)

TxD TxD

RxD RxD

TxD

RxD

Function

Logic

RS 485

Shield

(screen)

0V 0V

___

750-654

Fig. 2.1.1-3: Schematic Diagram g065401e

8 •750-654, 750-654/000-001 [Data Exchange Module]

Technical Data

WAGO-I/O-SYSTEM 750

I/O Modules

2.1.1.6 Technical Data

Module Specific Data

Transmission channel 1 TxD / 1 RxD, full duplex

Baud rate 62500 baud (8 N 1) (750-654)

125000 baud (8 N 1) (750-654/000-001)

Bit transfer over 2 x twisted pair with differential signals

Line impedance 120 Ω

Transmission length max. 100 m twisted pair

Current consumption (internal) 65 mA

Voltage supply via system voltage DC /DC

Isolation 500 V (System/Supply)

Bit width 1 x 40 bits data

1 x 8 bits control/status

Dimensions (mm) W x H x L 12 x 64* x 100

* from upper edge of 35 DIN rail

Weight ca. 55 g

Standards and Regulations

EMC CE-Emission of interference acc. to EN 61000-6-4: 2007

EMC CE-Emission of interference acc. to EN 61000-6-2: 2005

EMC marine applications-Immunity to

interference

acc. to Germanischer Lloyd (2003)

EMC marine applications-Emission

of interference

acc. to Germanischer Lloyd (2003)

ATEX guideline Acc. to EN 60079-0:2006 and

acc. to EN 60079-15:2005

Approvals

CULUS (UL508)

ABS (American Bureau of Shipping) Only for 750-654

BV (Bureau Veritas)

DNV (Det Norske Veritas) Cl. B

GL (Germanischer Lloyd) (applied for) Cat. A, B, C, D

KR (Korean Register of Shipping)

LR (Lloyd's Register) Env. 1, 2, 3, 4

NKK (Nippon Kaiji Kyokai)

PRS (Polski Rejestr Statków)

RINA (Registro Italiano Navale) Only for 750-654

750-654, 750-654/000-001 [Data Exchange Module] •9

Functional description

WAGO-I/O-SYSTEM 750

I/O Modules

Approvals

DEKRA II 3 G Ex nA II T4

Conformity Marking

More Information

Detailed references to the approvals are listed in the document "Overview

Approvals WAGO-I/O-SYSTEM 750", which you can find on the CD ROM

"AUTOMATION Tools and Docs" (Item-No.: 0888-0412)

or in the internet under: http://www.wago.com Documentation WAGO-

I/O-SYSTEM 750 System Description

2.1.1.7 Functional description

The integrated watchdog function switches all outputs to zero if there is no

valid information for more than 200 ms via the multiplex connection.

The 128 bytes input buffer provides for high rates of data transmission. When

using slower speeds, you can collect the received data with lower priority

without loosing data.

The 16 byte output buffer provides for faster transmission of larger data

strings.

The data exchange module is connected peer-to-peer. For the wiring of the

serial multiplex connection the RxD and TxD cables are crossed. The

following illustrations show the peer-to-peer connection and the internal

structure of the data exchange module.

TxD TxD

RxD RxD

13 13

14 14

750-654 750-654

TxD TxD

RxD RxD

__ __

Fig. 2.1.1-4: Point-to-Point connection g065402d

10 •750-654, 750-654/000-001 [Data Exchange Module]

Process Image

WAGO-I/O-SYSTEM 750

I/O Modules

RxD+

RxD-

7 6 5 4 3 2 1 0

TxD+

TxD-

76543210 76543210

+5V

10k

Internal

Output byte 0

Output byte 1

Output byte 2

Output byte 3

Output byte 4

Input byte 0

Input byte 1

Input byte 2

Input byte 3

Input byte 4

Control byte Status byte

control unit

Fig. 2.1.1-5: Internal Structure g065403e

2.1.1.8 Process Image

Using the module 750-654, a 6 byte input and output process image can be

transferred to the fieldbus coupler / controller via one logical channel. The

data sent and received are stored in up to 5 output and input bytes (D0 ... D4).

One control byte (C) and one status byte (S) are used to control the data flow.

Attention

The representation of the process data of some I/O modules or their variations

in the process image depends on the fieldbus coupler/-controller used. Please

take this information as well as the particular design of the respective

control/status bytes from the section "Fieldbus Specific Design of the Process

Data" included in the description concerning the process image of the

corresponding coupler/controller.

Input data Output data

S Status byte C Control byte

D0 Input byte 0 D0 Output byte 0

D1 Input byte 1 D1 Output byte 1

D2 Input byte 2 D2 Output byte 2

D3 Input byte 3 D3 Output byte 3

D4 Input byte 4 D4 Output byte 4

Control byte

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

0 X X X X X X X

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