WAGO 750 series manual

Modular I/O system

INTERBUS

750-344, 750-345

Manual

Technical Description,

Installation and

Configuration

Version 1.0.0

ii • General

Copyright  2002 by WAGO Kontakttechnik GmbH

All rights reserved.

WAGO Kontakttechnik GmbH

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 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.

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 protected by trademark or patent.

INTERBUS

Table of Contents • iii

TABLE OF CONTENTS

1 Important Notes ......................................................................................... 5

1.2

Standards and Guidelines for Operating the 750 Series ........................ 7

1.3 Symbols ................................................................................................. 8

Information ................................................................................. 9

Notation ................................................................................. 10

1.7

Scope of Validity ................................................................................. 11

1.8 Abbreviations....................................................................................... 11

2 The WAGO-I/O-SYSTEM 750............................................................... 12

Description .............................................................................. 12

Number........................................................................ 19

Update .............................................................................. 20

2.5

Storage, Assembly and Transport........................................................ 20

Supply....................................................................................... 29

2.8 Grounding ............................................................................................ 40

3 Fieldbus Couplers .................................................................................... 45

3.1

Feldbus Coupler 750-344 / -345 .......................................................... 45

4 I/O Modules .............................................................................................. 76

5 INTERBUS ............................................................................................... 77

5.1 Overview.............................................................................................. 77

5.3 Configuration

WAGO-I/O-SYSTEM 750

INTERBUS

iv • Table of Contents

INTERBUS

Legal Bases

1 Important Notes

This section includes an overall summary of the most important safety requirements and notes that are mentioned in each individual section. To protect your health and prevent damage to devices as well, it is imperative to read and carefully follow the safety guidelines.

1.1 Legal Bases

1.1.1 Copyright

This Manual, including all figures and illustrations, is copyright-protected.

Any further use of this Manual by third parties that violate pertinent copyright provisions is prohibited. Reproduction, translation, electronic and phototechnical filing/archiving (e.g., photocopying) as well as any amendments require the written consent of WAGO Kontakttechnik GmbH &

Co. KG, Minden, Germany. Non-observance will involve the right to assert damage claims.

WAGO Kontakttechnik GmbH & Co. KG reserves the right to provide for any alterations or modifications that serve to increase the efficiency of technical progress. WAGO Kontakttechnik GmbH & Co. KG owns all rights arising from the granting of 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 Personnel Qualifications

The use of the product described in this Manual requires special personnel qualifications, as shown in the following table:

Activity Electrical specialist

Instructed personnel*)

Specialists**) having qualifications in PLC programming

Assembly

X X

Commissioning

X X

Programming

X

Maintenance

X X

Troubleshooting

X

Disassembly

X X

*) Instructed persons have been trained by qualified personnel or electrical specialists.

**) A specialist is a person, who – thanks to technical training – has the qualification, knowledge and expertise to meet the required specifications of this work and to identify any potential hazardous situation in the above listed fields of activity.


INTERBUS

6 • Important Notes

All responsible persons have to familiarize themselves with the underlying legal standards to be applied. WAGO Kontakttechnik GmbH & Co. KG does not assume any liability whatsoever resulting from improper handling and damage incurred to both WAGO´s own and third-party products by disregarding detailed information in this Manual.

1.1.3 Use of the 750 Series in Compliance with Underlying

Provisions

Couplers, controllers and I/O modules found in the modular WAGO-I/O-

SYSTEM 750 receive digital and analog signals from sensors and transmit them to the actuators or higher-level control systems. Using programmable controllers, the signals can also be (pre-)processed.

The components have been developed for use in an environment that meets the

IP20 protection class criteria. Protection against finger injury and solid impurities up to 12.5 mm diameter is assured; protection against water damage is not ensured. Unless otherwise specified, operation of the components in wet and dusty environments is prohibited.

1.1.4 Technical Condition of Specified Devices

The components to be supplied Ex Works, are equipped with hardware and software configurations, which meet the individual application requirements.

Changes in hardware, software and firmware are permitted exclusively within the framework of the various alternatives that are documented in the specific manuals. WAGO Kontakttechnik GmbH & Co. KG will be exempted from any liability in case of changes in hardware or software as well as to noncompliant usage of components.

Please send your request for modified and new hardware or software configurations directly to WAGO Kontakttechnik GmbH & Co. KG.

INTERBUS

Standards and Guidelines for Operating the 750 Series

1.2 Standards and Guidelines for Operating the 750 Series

Please adhere to the standards and guidelines required for the use of your system:

 The data and power lines shall be connected and installed in compliance with the standards required to avoid failures on your system and to substantially minimize any imminently hazardous situations resulting in personal injury.

 For assembly, start-up, maintenance and troubleshooting, adhere to the specific accident prevention provisions which apply to your system (e.g.

BGV A 3, "Electrical Installations and Equipment").

 Emergency stop functions and equipment shall not be made ineffective.

See relevant standards (e.g. DIN EN 418).

 The equipment of your system shall be conform to EMC guidelines so that any electromagnetic interferences will be eliminated.

 Operating 750 Series components in home applications without further measures is permitted only if they meet the emission limits (emissions of interference) in compliance with EN 61000-6-3. You will find the detailed information in section "WAGO-I/O-SYSTEM 750"  "System

Description"  "Technical Data".

 Please observe the safety precautions against electrostatic discharge in accordance with DIN EN 61340-5-1/-3. When handling the modules, please ensure that environmental factors (persons, working place and packaging) are well grounded.

 The valid standards and guidelines applicable for the installation of switch cabinets shall be adhered to.


INTERBUS


Symbols

1.3 Symbols

Danger

Always observe this information to protect persons from injury.

Warning

Always observe this information to prevent damage to the device.

Attention

Marginal conditions that must always be observed to ensure smooth and efficient operation.

ESD (Electrostatic Discharge)

Warning of damage to the components through electrostatic discharge.

Observe the precautionary measure for handling components at risk of electrostatic discharge.

Note

Make important notes that are to be complied with so that a trouble-free and efficient device operation can be guaranteed.

Additional Information

References to additional literature, manuals, data sheets and internet pages.

INTERBUS

1.4 Safety Information

When connecting the device to your installation and during operation, the following safety notes must be observed:

Danger

The WAGO-I/O-SYSTEM 750 and its components are an open system. It must only be assembled in housings, cabinets or in electrical operation rooms.

Access is only permitted via a key or tool to authorized qualified personnel.

Danger

All power sources to the device must always be switched off before carrying out any installation, repair or maintenance work.

Warning

Replace defective or damaged device/module (e.g. in the event of deformed contacts), as the functionality of field bus station in question can no longer be ensured on a long-term basis.

Warning

The components are not resistant against materials having seeping and insulating properties. Belonging to this group of materials is: e.g. aerosols, silicones, triglycerides (found in some hand creams). If it cannot be ruled out that these materials appear in the component environment, then the components must be installed in an enclosure that is resistant against the above mentioned materials. Clean tools and materials are generally required to operate the device/module.

Warning

Soiled contacts must be cleaned using oil-free compressed air or with ethyl alcohol and leather cloths.

Warning

Do not use contact sprays, which could possibly impair the functioning of the contact area.

Warning

Avoid reverse polarity of data and power lines, as this may damage the devices.

ESD (Electrostatic Discharge)

The devices are equipped with electronic components that may be destroyed by electrostatic discharge when touched.


INTERBUS


Warning

For components with ETHERNET/RJ-45 connectors:

Only for use in LAN, not for connection to telecommunication circuits.

1.5 Font Conventions

italic italic

Names of paths and data files are marked in italic-type. e.g.: C:\Programs\WAGO-IO-CHECK

Menu items are marked in italic-type, bold letters. e.g.: Save

\

E ND

< >

A backslash between two names characterizes the selection of a menu point from a menu. e.g.: File \ New

Pushbuttons are marked as bold with small capitals e.g.: E

NTER

Keys are marked bold within angle brackets e.g.: <F5>

Courier

The print font for program codes is Courier. e.g.: END_VAR

1.6 Number Notation

Number code Example

Decimal 100

Hexadecimal 0x64

Binary '100'

'0110.0100'

Note

In quotation marks, nibble separated with dots (.)

INTERBUS

Scope of Validity

1.7 Scope of Validity

This manual outlines all the components for the fieldbus-independent

WAGO-I/O-SYSTEM 750 with an INTERBUS-ECO fieldbus coupler.

Item no.

750-344

750-345

1.8 Abbreviations

Description

INTERBUS-ECO Fieldbus coupler, 500 kBaud

INTERBUS-ECO Fieldbus coupler, 2 MBaud

AI

AO

DI

DO

I/O

ID

HB

LB

SW

Analog Input

Analog Input Module

Analog Output

Analog Output Module

Digital Input

Digital Input Module

Digital Output

Digital Output Module

[Input/Output] Input/Output

Identifier, Identification, Unique ID Marking

High Byte

Low Byte

Software Version


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12 • The WAGO-I/O-SYSTEM 750

2 The WAGO-I/O-SYSTEM 750

2.1 System Description

The WAGO-I/O-SYSTEM 750 is a modular, field bus independent I/O system. It is comprised of a field bus coupler/controller (1) and connected field bus modules (2) for any type of signal. Together, these make up the field bus node. The end module (3) completes the node.

Fig. 2-1: Field bus node g0xxx00x

Couplers/controllers for field bus systems such as PROFIBUS, INTERBUS,

ETHERNET TCP/IP, CAN (CANopen, DeviceNet, CAL), MODBUS, LON and others are available.

The coupler/controller contains the field bus interface, electronics and a power supply terminal. The field bus interface forms the physical interface to the relevant field bus. The electronics process the data of the bus modules and make it available for the field bus communication. The 24 V system supply and the 24 V field supply are fed in via the integrated power supply terminal.

The field bus coupler communicates via the relevant field bus. The programmable field bus controller (PFC) enables the implementation of additional PLC functions. Programming is done with the WAGO I/O PRO

CAA in accordance with IEC 61131-3.

Bus modules for diverse digital and analog I/O functions as well as special functions can be connected to the coupler/controller. The communication between the coupler/controller and the bus modules is carried out via an internal bus.

The WAGO-I/O-SYSTEM 750 has a clear port level with LEDs for status indication, insertable mini WSB markers and pullout group marker carriers.

The 3-wire technology supplemented by a ground wire connection allows for direct sensor/actuator wiring.

INTERBUS

30BTechnical Condition of Specified Devices • 13

2.2 Technical Data

Mechanic

Material

Dimensions W x H* x L

* from upper edge of DIN 35 rail

- Coupler/Controller (Standard)

- Coupler/Controller (ECO)

- Coupler/Controller (FireWire)

- I/O module, single

- I/O module, double

- I/O module, fourfold

Installation

Modular by

Mounting position

Marking

Polycarbonate, Polyamide 6.6

- 51 mm x 65 mm x 100 mm

- 50 mm x 65 mm x 100 mm

- 62 mm x 65 mm x 100 mm

- 12 mm x 64 mm x 100 mm

- 24 mm x 64 mm x 100 mm

- 48 mm x 64 mm x 100 mm on DIN 35 with interlock double feather key dovetail any position standard marking label type group marking label 8 x 47 mm

Connection

Connection type

Wire range

Stripped length

CAGE CLAMP®

0.08 mm² ... 2.5 mm², AWG 28-14

8 … 9 mm,

9 … 10 mm for components with pluggable wiring

(753-xxx)

Contacts

Power jumpers contacts

Current via power contacts

Voltage drop at I

Data contacts max max blade/spring contact self-cleaning

10 A

< 1 V/64 modules slide contact, hard gold plated

1.5 µm, self-cleaning

Climatic environmental conditions

Operating temperature 0 °C ... 55 °C,

-20 °C … +60 °C for components with extended temperature range (750-xxx/025-xxx)

Storage temperature

Relative humidity

-20 °C ... +85 °C

5 % … 95 % without condensation

Resistance to harmful substances

Maximum pollutant concentration at relative humidity < 75%

Special conditions acc. to IEC 60068-2-42 and IEC 60068-2-43

SO

H

2

2

 25 ppm

S  10 ppm

Ensure that additional measures for components are taken, which are used in an environment involving:

– dust, caustic vapors or gases

– ionization radiation


INTERBUS


Safe electrical isolation

Air and creepage distance

Degree of pollution acc. To IEC 61131-2

Degree of protection

Degree of protection acc. to IEC 60664-1

2

IP 20

Electromagnetic compatibility

Immunity to interference for industrial areas acc. to EN 61000-6-2 (2001)

Test specification

EN 61000-4-2 ESD

EN 61000-4-3 electromagnetic fields

EN 61000-4-4 burst

EN 61000-4-5 surge

Test values

4 kV/8 kV (contact/air)

10 V/m 80 MHz ... 1 GHz

1 kV/2 kV (data/supply)

Data: -/- (line/line)

Strength class

2/3

3

2/3

EN 61000-4-6

RF disturbances

Emission of interference for industrial areas acc. to EN 61000-6-4 (2001)

Evaluation criteria

B

A

B

B

DC supply:

1 kV (line/earth)

0.5 kV (line/line)

2

1

AC supply:

0.5 kV (line/earth) 1

1 kV (line/line)

2 kV (line/earth)

10 V/m 80 % AM

(0.15 ... 80 MHz)

2

B

B

3

3 A


EN 55011 (AC supply, conducted)

EN 55011 (radiated)

Limit values/[QP]*) Frequency range

79 dB (μV)

73 dB (μV)

40 dB (μV/m)

47 dB (μV/m)

150 kHz ... 500 kHz

500 kHz ... 30 MHz

30 MHz ... 230 MHz

230 MHz ... 1 GHz

Distance

10 m

10 m

Emission of interference for residential areas acc. to EN 61000-6-3 (2001)


EN 55022 (AC supply, conducted)

EN 55022 (DC supply/data, conducted)

EN 55022 (radiated)

Limit values/[QP]*) Frequency range

66 ... 56 dB (μV) 150 kHz ... 500 kHz

56 dB (μV)

60 dB (μV)

40 ... 30 dB (μA)

30 dB (μA)

30 dB (μV/m)

37 dB (μV/m)

500 kHz ... 5 MHz

5 MHz ... 30 MHz

150 kHz ... 500 kHz

500 kHz ... 30 MHz

30 MHz ... 230 MHz

230 MHz ... 1 GHz

Distance

10 m

10 m

INTERBUS


Mechanical strength acc. to IEC 61131-2


IEC 60068-2-6 vibration

Frequency range

5 Hz  f < 9 Hz

Limit value

1.75 mm amplitude (permanent)

3.5 mm amplitude (short term)

9 Hz  f < 150 Hz 0.5 g (permanent)

1 g (short term)

Note on vibration test: a) Frequency change: max. 1 octave/minute b) Vibration direction: 3 axes

IEC 60068-2-27 shock

IEC 60068-2-32 free fall

Note on shock test: a) Type of shock: half sine b) Shock duration: 11 ms c) Shock direction: 3x in positive and 3x in negative direction for each of the three mutually perpendicular axes of the test specimen

1 m

(module in original packing)

*) QP: Quasi Peak

Note

If the technical data of components differ from the values described here, the technical data shown in the manuals of the respective components shall be valid.


INTERBUS


For Products of the WAGO-I/O-SYSTEM 750 with ship specific approvals supplementary guidelines are valid:

Electromagnetic compatibility

Immunity to interference acc. to Germanischer Lloyd (2003)


IEC 61000-4-2 ESD

IEC 61000-4-3 electromagnetic fields

IEC 61000-4-4 burst

IEC 61000-4-5 surge

Test values

6 kV/8 kV (contact/air)

10 V/m 80 MHz ... 2 GHz

1 kV/2 kV (data/supply)

AC/DC

Supply:

0.5 kV (line/line)

1 kV (line/earth)

IEC 61000-4-6

RF disturbances

Type test AF disturbances

(harmonic waves)

3 V, 2 W

Type test high voltage

10 V/m 80 % AM

(0.15 ... 80 MHz)

755 V DC

1500 V AC

Strength class

3/3

3

2/3

1

2

A

A

3 A

-

Evaluation criteria

B

A

A

- -

Emission of interference acc. to Germanischer Lloyd (2003)


Type test

(EMC1, conducted) allows for ship bridge control applications

Limit values

96 ... 50 dB (μV)

60 ... 50 dB (μV)

50 dB (μV)

Frequency range

10 kHz ... 150 kHz

150 kHz ... 350 kHz

350 kHz ... 30 MHz

Distance

Type test

(EMC1, radiated) allows for ship bridge control applications

80 ... 52 dB (μV/m) 150 kHz ... 300 kHz

52 ... 34 dB (μV/m) 300 kHz ... 30 MHz

54 dB (μV/m) except: 24 dB (μV/m)

30 MHz ... 2 GHz

3 m

3 m

3 m

156 MHz ... 165 MHz 3 m

Mechanical strength acc. to Germanischer Lloyd (2003)


IEC 60068-2-6 vibration

(category A – D)

Frequency range Limit value

2 Hz  f < 25 Hz ± 1.6 mm amplitude (permanent)

25 Hz  f < 100 Hz 4 g (permanent)

Note on vibration test: a) Frequency change: max. 1 octave/minute b) Vibration direction: 3 axes

INTERBUS


Range of application

Industrial areas

Required specification emission of interference

EN 61000-6-4 (2001)

Required specification immunity to interference

EN 61000-6-2 (2001)

Residential areas EN 61000-6-3 (2001)*) EN 61000-6-1 (2001)

*)

The system meets the requirements on emission of interference in residential areas with the field bus coupler/controller for:

ETHERNET 750-342/-841/-842/-860

MODBUS

750-812/-814/ -815/ -816

KNX 750-849

With a special permit, the system can also be implemented with other field bus couplers/controllers in residential areas (housing, commercial and business areas, smallscale enterprises). The special permit can be obtained from an authority or inspection office. In Germany, the Federal Office for Post and Telecommunications and its branch offices issues the permit.

It is possible to use other field bus couplers/controllers under certain boundary conditions.

Please contact WAGO Kontakttechnik GmbH & Co. KG.

Maximum power dissipation of the components

Bus modules 0.8 W / bus terminal (total power dissipation, system/field)

Field bus coupler/controller 2.0 W / coupler/controller

Warning

The power dissipation of all installed components must not exceed the maximum conductible power of the housing (cabinet).

When dimensioning the housing, care is to be taken that even under high external temperatures, the temperature inside the housing does not exceed the permissible ambient temperature of 55 °C.


INTERBUS


Dimensions

01 02

A

B

24V 0V

C

D

A

B

C

D

A

B

C

B

D

A

C

D

A

B

C

D

+ +

-

51 12 24

Side view

Fig. 2-2: Dimensions

Dimensions in mm g01xx05e

Note

The illustration shows a standard coupler. For detailed dimensions, please refer to the technical data of the respective coupler/controller.

INTERBUS


2.3 Manufacturing Number

The manufacturing number indicates the delivery status directly after production.

This number is part of the lateral marking on the component.

In addition, starting from calendar week 43/2000 the manufacturing number is also printed on the cover of the configuration and programming interface of the field bus coupler or controller.

PROFIBUS

GL

-

Power Supply

Field

+

24 V

0 V

Manufacturing Number

01030002

03-B

060606

72072

0 1 0 3 0 0 0 2 0 3 - B 0 6 0 6 0 6

Calendar week

Year Software version

Hardware version

Firmware Loader version

Internal

Number

Fig. 2-3: Example: Manufacturing Number of a PROFIBUS field bus coupler 750-333 g01xx15e

The manufacturing number consists of the production week and year, the software version (if available), the hardware version of the component, the firmware loader (if available) and further internal information for

WAGO Kontakttechnik GmbH & Co. KG.


INTERBUS


2.4 Component Update

For the case of an Update of one component, the lateral marking on each component contains a prepared matrix.

This matrix makes columns available for altogether three updates to the entry of the current update data, like production order number (NO; starting from calendar week 13/2004), update date (DS), software version (SW), hardware version (HW) and the firmware loader version (FWL, if available).

Update Matrix

Current Version data for: 1. Update 2. Update 3. Update

Production Order

Number

Datestamp

NO

DS

Software index SW

Hardware index HW

Firmware loader index

FWL

 only starting from calendar week 13/2004

 only for coupler/controller

If the update of a component took place, the current version data are registered into the columns of the matrix.

Additionally with the update of a field bus coupler or controller also the cover of the configuration and programming interface of the coupler or controller is printed on with the current manufacturing and production order number.

The original manufacturing data on the housing of the component remain thereby.

Wherever possible, the components are to be stored in their original packaging. Likewise, the original packaging provides optimal protection during transport.

When assembling or repacking the components, the contacts must not be soiled or damaged. The components must be stored and transported in appropriate containers/packaging. Thereby, the ESD information is to be regarded.

Statically shielded transport bags with metal coatings are to be used for the transport of open components for which soiling with amine, amide and silicone has been ruled out, e.g. 3M 1900E.

INTERBUS

2.6 Mechanical Setup

Along with horizontal and vertical installation, all other installation positions are allowed.

Attention

In the case of vertical assembly, an end stop has to be mounted as an additional safeguard against slipping.

WAGO item 249-116 End stop for DIN 35 rail, 6 mm wide

WAGO item 249-117 End stop for DIN 35 rail, 10 mm wide

The length of the module assembly (including one end module of 12mm width) that can be connected to the coupler/controller is 780 mm. When assembled, the I/O modules have a maximum length of 768 mm.

Examples:

 64 I/O modules of 12 mm width can be connected to one coupler/controller.

 32 I/O modules of 24 mm width can be connected to one coupler/controller.

Exception:

The number of connected I/O modules also depends on which type of coupler/controller is used. For example, the maximum number of I/O modules that can be connected to a PROFIBUS coupler/controller is 63 without end module. The maximum total expansion of a node is calculated as follows:

Warning

The maximum total length of a node without coupler/controller must not exceed 780 mm. Furthermore, restrictions made on certain types of couplers/controllers must be observed (e.g. for PROFIBUS).


INTERBUS


2.6.3 Assembly onto Carrier Rail

2.6.3.1 Carrier Rail Properties

All system components can be snapped directly onto a carrier rail in accordance with the European standard EN 50022 (DIN 35).

Warning

WAGO Kontakttechnik GmbH & Co. KG supplies standardized carrier rails that are optimal for use with the I/O system. If other carrier rails are used, then a technical inspection and approval of the rail by WAGO Kontakttechnik

GmbH & Co. KG should take place.

Carrier rails have different mechanical and electrical properties. For the optimal system setup on a carrier rail, certain guidelines must be observed:

 The material must be non-corrosive.

 Most components have a contact to the carrier rail to ground electromagnetic disturbances. In order to avoid corrosion, this tin-plated carrier rail contact must not form a galvanic cell with the material of the carrier rail which generates a differential voltage above 0.5 V (saline solution of

0.3% at 20°C) .

 The carrier rail must optimally support the EMC measures integrated into the system and the shielding of the bus module connections.

 A sufficiently stable carrier rail should be selected and, if necessary, several mounting points (every 20 cm) should be used in order to prevent bending and twisting (torsion).

 The geometry of the carrier rail must not be altered in order to secure the safe hold of the components. In particular, when shortening or mounting the carrier rail, it must not be crushed or bent.

 The base of the I/O components extends into the profile of the carrier rail.

For carrier rails with a height of 7.5 mm, mounting points are to be riveted under the node in the carrier rail (slotted head captive screws or blind rivets).

INTERBUS

Spacing • 23

WAGO DIN Rail

2.6.3.2 WAGO DIN Rail

WAGO carrier rails meet the electrical and mechanical requirements.

Item Number Description

210-113 /-112 35 x 7.5; 1 mm; steel yellow chromated; slotted/unslotted

210-114 /-197 35 x 15; 1.5 mm; steel yellow chromated; slotted/unslotted

210-118 35 x 15; 2.3 mm; steel yellow chromated; unslotted

210-198

210-196

35 x 15; 2.3 mm; copper; unslotted

35 x 7.5; 1 mm; aluminum; unslotted

2.6.4 Spacing

The spacing between adjacent components, cable conduits, casing and frame sides must be maintained for the complete field bus node.

Fig. 2-4: Spacing g01xx13x

The spacing creates room for heat transfer, installation or wiring. The spacing to cable conduits also prevents conducted electromagnetic interferences from influencing the operation.


INTERBUS


2.6.5 Plugging and Removal of the Components

Warning

Before work is done on the components, the voltage supply must be turned off.

In order to safeguard the coupler/controller from jamming, it should be fixed onto the carrier rail with the locking disc To do so, push on the upper groove of the locking disc using a screwdriver.

To pull out the field bus coupler/controller, release the locking disc by pressing on the bottom groove with a screwdriver and then pulling the orange colored unlocking lug .

Fig. 2-5: Coupler/Controller and unlocking lug g01xx12e

It is also possible to release an individual I/O module from the unit by pulling an unlocking lug.

Fig. 2-6: removing bus terminal p0xxx01x

Danger

Ensure that an interruption of the PE will not result in a condition which could endanger a person or equipment!

For planning the ring feeding of the ground wire, please see chapter 2.6.3.

INTERBUS

WAGO DIN Rail

All system components can be snapped directly on a carrier rail in accordance with the European standard EN 50022 (DIN 35).

The reliable positioning and connection is made using a tongue and groove system. Due to the automatic locking, the individual components are securely seated on the rail after installing.

Starting with the coupler/controller, the bus modules are assembled adjacent to each other according to the project planning. Errors in the planning of the node in terms of the potential groups (connection via the power contacts) are recognized, as the bus modules with power contacts (male contacts) cannot be linked to bus modules with fewer power contacts.

Attention

Always link the bus modules with the coupler/controller, and always plug from above.

Warning

Never plug bus modules from the direction of the end terminal. A ground wire power contact, which is inserted into a terminal without contacts, e.g. a

4-channel digital input module, has a decreased air and creepage distance to the neighboring contact in the example DI4.

Always terminate the field bus node with an end module (750-600).


INTERBUS


2.6.7 Internal Bus/Data Contacts

Communication between the coupler/controller and the bus modules as well as the system supply of the bus modules is carried out via the internal bus. It is comprised of 6 data contacts, which are available as self-cleaning gold spring contacts.

Fig. 2-7: Data contacts p0xxx07x

Warning

Do not touch the gold spring contacts on the I/O modules in order to avoid soiling or scratching!

ESD (Electrostatic Discharge)

The modules are equipped with electronic components that may be destroyed by electrostatic discharge. When handling the modules, ensure that the environment (persons, workplace and packing) is well grounded. Avoid touching conductive components, e.g. data contacts.

INTERBUS

WAGO DIN Rail

Self-cleaning power contacts , are situated on the side of the components which further conduct the supply voltage for the field side. These contacts come as touchproof spring contacts on the right side of the coupler/controller and the bus module. As fitting counterparts the module has male contacts on the left side.

Danger

The male contacts are sharp-edged. Handle the module carefully to prevent injury.

Attention

Please take into consideration that some bus modules have no or only a few power jumper contacts. The design of some modules does not allow them to be physically assembled in rows, as the grooves for the male contacts are closed at the top.

Fig. 2-8: Example for the arrangement of power contacts g0xxx05e

Recommendation

With the WAGO ProServe® Software smartDESIGNER, the structure of a field bus node can be configured. The configuration can be tested via the integrated accuracy check.


INTERBUS


All components have CAGE CLAMP® connections.

The WAGO CAGE CLAMP® connection is appropriate for solid, stranded and finely stranded conductors. Each clamping unit accommodates one conductor.

Fig. 2-9: CAGE CLAMP® Connection g0xxx08x

The operating tool is inserted into the opening above the connection. This opens the CAGE CLAMP ® . Subsequently the conductor can be inserted into the opening. After removing the operating tool, the conductor is safely clamped.

More than one conductor per connection is not permissible. If several conductors have to be made at one connection point, then they should be made away from the connection point using WAGO Terminal Blocks. The terminal blocks may be jumpered together and a single wire brought back to the I/O module connection point.

Attention

If it is unavoidable to jointly connect 2 conductors, then a ferrule must be used to join the wires together.

Ferrule:

Length

Nominal cross section

WAGO Product max.

8 mm

1 mm 2 for 2 conductors with 0.5 mm 2 each

216-103 or products with comparable properties

INTERBUS

Isolation • 29

WAGO DIN Rail

2.7 Power Supply

2.7.1 Isolation

Within the field bus node, there are three electrically isolated potentials.

 Operational voltage for the field bus interface.

 Electronics of the couplers/controllers and the bus modules (internal bus).

 All bus modules have an electrical isolation between the electronics

(internal bus, logic) and the field electronics. Some digital and analog input modules have each channel electrically isolated, please see catalog.

Fig. 2-10: Isolation g0xxx01e

Attention

The ground wire connection must be present in each group. In order that all protective conductor functions are maintained under all circumstances, it is recommended that a ground wire be connected at the beginning and end of a

potential group. (ring format, please see chapter 2.8.3). Thus, if a bus module

comes loose from a composite during servicing, then the protective conductor connection is still guaranteed for all connected field devices.

When using a joint power supply unit for the 24 V system supply and the

24 V field supply, the electrical isolation between the internal bus and the field level is eliminated for the potential group.


INTERBUS


2.7.2.1 Connection

The WAGO-I/O-SYSTEM 750 requires a 24 V direct current system supply

(-15 % or +20 %). The power supply is provided via the coupler/controller and, if necessary, in addition via the internal system supply modules

(750-613). The voltage supply is reverse voltage protected.

Attention

The use of an incorrect supply voltage or frequency can cause severe damage to the component.

Fig. 2-11: System Supply

The direct current supplies all internal system components, e.g. coupler/controller electronics, field bus interface and bus modules via the internal bus (5 V system voltage). The 5 V system voltage is electrically connected to the 24 V system supply. g0xxx02e

Fig. 2-12: System Voltage g0xxx06e

INTERBUS

System Supply • 31

Alignment

Attention

Resetting the system by switching on and off the system supply, must take place simultaneously for all supply modules (coupler/controller and 750-613).

2.7.2.2 Alignment

Recommendation

A stable network supply cannot be taken for granted always and everywhere.

Therefore, regulated power supply units should be used in order to guarantee the quality of the supply voltage.

The supply capacity of the coupler/controller or the internal system supply module (750-613) can be taken from the technical data of the components.

Internal current consumption

*) Current consumption via system voltage:

5 V for electronics of the bus modules and coupler/controller

Residual current for bus terminals

*)

Available current for the bus modules. Provided by the bus power supply unit. See coupler/controller and internal system supply module (750-613)

*) cf. catalogue W4 Volume 3, manuals or internet

750-301: internal current consumption:350 mA at 5 V residual current for bus modules : sum I

(5V) total

:

1650 mA at 5 V

2000 mA at 5 V

The internal current consumption is indicated in the technical data for each bus terminal. In order to determine the overall requirement, add together the values of all bus modules in the node.

Attention

If the sum of the internal current consumption exceeds the residual current

for bus modules, then an internal system supply module (750-613) must be placed before the module where the permissible residual current was exceeded.


INTERBUS


Example: A node with a PROFIBUS Coupler 750-333 consists of 20 relay modules (750-517) and 10 digital input modules (750-405).

Current consumption:

20* 90 mA = 1800 mA

10* 2 mA = 20 mA

Sum 1820 mA

The coupler can provide 1650 mA for the bus modules. Consequently, an internal system supply module (750-613), e.g. in the middle of the node, should be added.

Recommendation

With the WAGO ProServe® Software smartDESIGNER, the assembly of a field bus node can be configured. The configuration can be tested via the integrated accuracy check.

The maximum input current of the 24 V system supply is 500 mA. The exact electrical consumption (I

(24 V)

) can be determined with the following formulas:

Coupler/Controller

I

(5 V) total

= Sum of all the internal current consumption of the connected bus modules

+ internal current consumption coupler/controller

750-613

I

(5 V) total

= Sum of all the internal current consumption of the connected bus modules

Input current I

(24 V)

= 5 V / 24 V * I

(5 V) total

/ 

 = 0.87 (at nominal load)

Attention

If the electrical consumption of the power supply point for the 24 V-system supply exceeds 500 mA, then the cause may be an improperly aligned node or a defect.

During the test, all outputs, in particular those of the relay modules, must be active.

INTERBUS

Field Supply • 33

Connection

2.7.3.1 Connection

Sensors and actuators can be directly connected to the relevant channel of the bus module in 1/4 conductor connection technology. The bus module supplies power to the sensors and actuators. The input and output drivers of some bus modules require the field side supply voltage.

The coupler/controller provides field side power (DC 24V). In this case it is a passive power supply without protection equipment.

Power supply modules are available for other potentials, e. g. AC 230 V.

Likewise, with the aid of the power supply modules, various potentials can be set up. The connections are linked in pairs with a power contact.

Fig. 2-13: Field Supply (Sensor/Actuator)

The supply voltage for the field side is automatically passed to the next module via the power jumper contacts when assembling the bus modules . g0xxx03e

The current load of the power contacts must not exceed 10 A on a continual basis. The current load capacity between two connection terminals is identical to the load capacity of the connection wires.

By inserting an additional power supply module, the field supply via the power contacts is disrupted. From there a new power supply occurs which may also contain a new voltage potential.


INTERBUS


Attention

Some bus modules have no or very few power contacts (depending on the I/O function). Due to this, the passing through of the relevant potential is disrupted. If a field supply is required for subsequent bus modules, then a power supply module must be used.

Note the data sheets of the bus modules.

In the case of a node setup with different potentials, e.g. the alteration from

DC 24 V to AC 230V, a spacer module should be used. The optical separation of the potentials acts as a warning to heed caution in the case of wiring and maintenance works. Thus, the results of wiring errors can be prevented.

2.7.3.2 Fusing

Internal fusing of the field supply is possible for various field voltages via an appropriate power supply module.

750-601

750-609

750-615

750-610

750-611

24 V DC, Supply/Fuse

230 V AC, Supply/Fuse

120 V AC, Supply/Fuse

24 V DC, Supply/Fuse/Diagnosis

230 V AC, Supply/Fuse/Diagnosis

Fig. 2-14: Supply module with fuse carrier (Example 750-610) g0xxx09x

INTERBUS

Field Supply • 35

Fusing

Warning

In the case of power supply modules with fuse holders, only fuses with a maximum dissipation of 1.6 W (IEC 127) must be used.

For UL approved systems only use UL approved fuses.

In order to insert or change a fuse, or to switch off the voltage in succeeding bus modules, the fuse holder may be pulled out. In order to do this, use a screwdriver for example, to reach into one of the slits (one on both sides) and pull out the holder.

Fig. 2-15: Removing the fuse carrier

Lifting the cover to the side opens the fuse carrier. p0xxx05x

Fig. 2-16: Opening the fuse carrier p0xxx03x

Fig. 2-17: Change fuse

After changing the fuse, the fuse carrier is pushed back into its original position. p0xxx04x


INTERBUS


Alternatively, fusing can be done externally. The fuse modules of the WAGO series 281 and 282 are suitable for this purpose.

Fig. 2-18: Fuse modules for automotive fuses, series 282

Abb. 2-19: Fuse modules for automotive fuses, series 2006 pf66800x p0xxx13x

Fig. 2-20: Fuse modules with pivotable fuse carrier, series 281 pe61100x

Abb. 2-21: Fuse modules with pivotable fuse carrier, series 2002 p0xxx12x

INTERBUS

Supplementary Power Supply Regulations • 37

Fusing

2.7.4 Supplementary Power Supply Regulations

The WAGO-I/O-SYSTEM 750 can also be used in shipbuilding or offshore and onshore areas of work (e. g. working platforms, loading plants). This is demonstrated by complying with the standards of influential classification companies such as Germanischer Lloyd and Lloyds Register.

Filter modules for 24-volt supply are required for the certified operation of the system.

Item No. Name Description

750-626 Supply filter Filter module for system supply and field supply (24 V, 0 V), i.e. for field bus coupler/controller and bus power supply (750-613)

(750-602, 750-601, 750-610)

Therefore, the following power supply concept must be absolutely complied with.

Fig. 2-22: Power supply concept g01xx11e

Note

Another potential power terminal 750-601/602/610 must only be used behind the filter terminal 750-626 if the protective earth conductor is needed on the lower power contact or if a fuse protection is required.


INTERBUS


L1

L2

L3

N

PE

Attention

The system supply and the field supply should be separated in order to ensure bus operation in the event of a short-circuit on the actuator side. a) b)

1) c)

1) d)

System

Supply

230V

24V

Field

Supply

230V

24V

Field

Supply

10 A

750-400 750-410 750-401 750-613 750-616 750-612 750-512 750-512 750-513 750-616 750-610 750-552 750-630 750-600

2) 2)

Shield (screen) bus

Main ground bus

Fig. 2-23: Supply example

1) Separation module recommended

2) Ring-feeding recommended a) Power Supply on coupler / controller via external Supply

Module b) Internal System

Supply Module c) Supply Module passive d) Supply Module with fuse carrier/ d iagnostics g0xxx04e

INTERBUS

Power Supply Unit • 39

Fusing

2.7.6 Power Supply Unit

The WAGO-I/O-SYSTEM 750 requires a 24 V direct current system supply with a maximum deviation of -15 % or +20 %.

Recommendation

A stable network supply cannot be taken for granted always and everywhere.

Therefore, regulated power supply units should be used in order to guarantee the quality of the supply voltage.

A buffer (200 µF per 1 A current load) should be provided for brief voltage dips. The I/O system buffers for approx 1 ms.

The electrical requirement for the field supply is to be determined individually for each power supply point. Thereby all loads through the field devices and bus modules should be considered. The field supply as well influences the bus modules, as the inputs and outputs of some bus modules require the voltage of the field supply.

Attention

The system supply and the field supply should be isolated from the power supplies in order to ensure bus operation in the event of short circuits on the actuator side.

WAGO products

Item No.

787-612

Description

787-622

787-632

288-809

288-810

288-812

288-813

Primary switched mode; DC 24 V; 2,5 A

Input nominal voltage AC 230 V

Primary switched mode; DC 24 V; 5 A

Input nominal voltage AC 230 V

Primary switched mode; DC 24 V; 10 A

Input nominal voltage AC 230/115 V

Rail-mounted modules with universal mounting carrier

AC 115 V / DC 24 V; 0,5 A

AC 230 V / DC 24 V; 0,5 A

AC 230 V / DC 24 V; 2 A

AC 115 V / DC 24 V; 2 A


INTERBUS


Grounding

2.8 Grounding

2.8.1 Grounding the DIN Rail

2.8.1.1 Framework Assembly

When setting up the framework, the carrier rail must be screwed together with the electrically conducting cabinet or housing frame. The framework or the housing must be grounded. The electronic connection is established via the screw. Thus, the carrier rail is grounded.

Attention

Care must be taken to ensure the flawless electrical connection between the carrier rail and the frame or housing in order to guarantee sufficient grounding.

Insulated assembly has been achieved when there is constructively no direct conduction connection between the cabinet frame or machine parts and the carrier rail. Here the earth must be set up via an electrical conductor.

The connected grounding conductor should have a cross section of at least

4 mm 2 .

Recommendation

The optimal insulated setup is a metallic assembly plate with grounding connection with an electrical conductive link with the carrier rail.

The separate grounding of the carrier rail can be easily set up with the aid of the WAGO ground wire terminals.

Item No.

283-609

Description

1-conductor ground (earth) terminal block make an automatic contact to the carrier rail; conductor cross section: 0.2 -16 mm

2

Note: Also order the end and intermediate plate (283-320).

INTERBUS

The grounding function increases the resistance against disturbances from electro-magnetic interferences. Some components in the I/O system have a carrier rail contact that dissipates electro-magnetic disturbances to the carrier rail.

Fig. 2-24: Carrier rail contact

Attention

Care must be taken to ensure the direct electrical connection between the carrier rail contact and the carrier rail.

The carrier rail must be grounded.

For information on carrier rail properties, please see chapter 2.6.3.1.

g0xxx10e


INTERBUS


Grounding

For the field side, the ground wire is connected to the lowest connection terminals of the power supply module. The ground connection is then connected to the next module via the Power Jumper Contact (PJC). If the bus module has the lower power jumper contact, then the ground wire connection of the field devices can be directly connected to the lower connection terminals of the bus module.

Attention

Should the ground conductor connection of the power jumper contacts within the node become disrupted, e. g. due to a 4-channel bus terminal, the ground connection will need to be re-established.

The ring feeding of the grounding potential will increase the system safety.

When one bus module is removed from the group, the grounding connection will remain intact.

The ring feeding method has the grounding conductor connected to the beginning and end of each potential group.

Fig. 2-25: Ring-feeding g0xxx07e

Attention

The regulations relating to the place of assembly as well as the national regulations for maintenance and inspection of the grounding protection must be observed.

INTERBUS

General • 43

2.9 Shielding (Screening)

2.9.1 General

The shielding of the data and signal conductors reduces electromagnetic interferences thereby increasing the signal quality. Measurement errors, data transmission errors and even disturbances caused by overvoltage can be avoided.

Attention

Constant shielding is absolutely required in order to ensure the technical specifications in terms of the measurement accuracy.

The data and signal conductors should be separated from all high-voltage cables.

The cable shield should be potential. With this, incoming disturbances can be easily diverted.

The shielding should be placed over the entrance of the cabinet or housing in order to already repel disturbances at the entrance.

2.9.2 Bus Conductors

The shielding of the bus conductor is described in the relevant assembly guidelines and standards of the bus system.

Bus modules for most analog signals along with many of the interface bus modules include a connection for the shield.

Note

For a better shield performance, the shield should have previously been placed over a large area. The WAGO shield connection system is suggested for such an application.

This suggestion is especially applicable if the equipment can have even current or high impulse formed currents running through (for example initiated by atmospheric discharge).


INTERBUS


2.9.4 WAGO Shield (Screen) Connecting System

The WAGO Shield Connecting system includes a shield clamping saddle, a collection of rails and a variety of mounting feet. Together these allow many different possibilities. See catalog W4 volume 3 chapter 10.

Fig. 2-26: WAGO Shield (Screen) Connecting System p0xxx08x, p0xxx09x, and p0xxx10x

Fig. 2-27: Application of the WAGO Shield (Screen) Connecting System

2.10 Assembly Guidelines/Standards

DIN 60204,

DIN EN 50178 p0xxx11x

Electrical equipping of machines

Equipping of high-voltage systems with electronic components (replacement for VDE 0160)

INTERBUS

Feldbus Coupler 750-344 / -345 • 45

WAGO Shield (Screen) Connecting System

3 Fieldbus Couplers

3.1 Feldbus Coupler 750-344 / -345

This chapter includes:

3.1.1 Description...................................................................................... 47

3.1.2 Hardware ........................................................................................ 48

3.1.2.1 View......................................................................................... 48

Connection ................................................................ 50

3.1.2.4 Indicators ................................................................................. 51

3.1.4 Process

3.1.4.1

Local Process Image ................................................................ 53

3.1.4.2

3.1.4.3

3.1.4.3.1

3.1.4.3.2

Allocation of the Input and Output Data ................................. 53

Bus Modules Process Images on the Interbus ......................... 54

2 DI Modules ........................................................................... 54

2 DI Modules with Diagnostics ............................................... 54

3.1.4.3.3

3.1.4.3.4

3.1.4.3.5

3.1.4.3.6

3.1.4.3.7

3.1.4.3.8

4 DI Modules ........................................................................... 55

8 DI Modules ........................................................................... 55

2 DO Modules.......................................................................... 55

2 DO Modules with Diagnostics.............................................. 55

4 DO Modules.......................................................................... 56

8 DO Modules.......................................................................... 56

3.1.4.3.10

2 AI Modules ........................................................................... 56

3.1.4.3.11

4 AI Modules ........................................................................... 57

3.1.4.3.12

2 AO Modules.......................................................................... 57

3.1.4.3.13

4 AO Modules.......................................................................... 58

Modules...................................................................... 58

3.1.4.3.16

SSI Transmitter Interface......................................................... 59

Encoder

3.1.4.3.18

Digital Impulse Interface ......................................................... 60

3.1.5 Configuration.................................................................................. 62

Files ..................................................................... 62

3.1.5.3

ID Code to the WAGO I/O System ......................................... 63

3.1.5.4 Example ................................................................................... 64

3.1.6 Diagnostics ..................................................................................... 66

3.1.6.1

Standard Couplers 750-344 and 750-345 ................................ 66

3.1.6.2 Diagnostics

3.1.6.2.1

Buffer for Diagnostics Data (only with Diagnostics Couplers)66

3.1.6.2.2

3.1.6.2.3

3.1.6.2.4

Diagnostics Word in the Process Output Image ...................... 67

Diagnostics Word in the Process Input Image......................... 68

Processing of the SUPI3 Input StatERR.................................. 69


INTERBUS

46 • Feldbus Coupler 750-344 / -345

WAGO Shield (Screen) Connecting System

Indication ............................................................................... 70 status.......................................................................... 70

3.1.7.4

Fault Message via Blink Code of the I/O LED........................ 72

behavior ................................................................................. 74

3.1.8.1

Loss of fieldbus........................................................................ 74

bus

Data ................................................................................75

INTERBUS


Description

3.1.1 Description

The ECO fieldbus couplers for INTERBUS are distinguished by their data transfer rate.

Item

750-344

750-345

Data Transfer Rate

500 kBit/s

2 MBit/s

Note

This manual shows graphics and diagrams for the 750-344 coupler. The description given in the manual also applies to the 750-345 coupler, however.

The ECO fieldbus coupler has been designed especially for applications with a low data width in the process image. These are primarily applications that use digital process data or only low volumes of analog process data.

The coupler has an integrated supply terminal for the system voltage. The field power jumper contacts are supplied via a separate supply module.

The INTERBUS coupler recognizes all connected I/O modules and creates a local process image on this basis. INTERBUS allows the storing of the process image in the corresponding master control.


INTERBUS

48 • Feldbus Coupler 750-344 / -345

Hardware

3.1.2 Hardware

3.1.2.1 View

Fieldbus connection

D-Sub incoming

INTERBUS

READY

BA

RC

RD

I/O

01 02 03 04

Status indication

-Fieldbus

-Fieldbus node

Data contacts

Marking area

Fieldbus connection

D-Sub outgoing

Supply

24V

0V

Configuration interface

Fig. 3-1: INTERBUS ECO fieldbus coupler g034400e

The fieldbus coupler consists of:

 Power supply with power supply unit for system power

 Feldbus interface with the bus connection

 Display elements (LEDs) for status display of operation, bus communication, operating voltages as well as for fault messages and diagnostics

 Configuration interface

 Electronics for communication with the I/O modules (internal data bus) and the fieldbus interface.

INTERBUS


Hardware

3.1.2.2 Power Supply

The power is supplied via terminals with CAGE CLAMP® connection. The power supply powers the system.

I/O Modules

24 V

1 / 2

3 / 4

10 nF

0 V

24 V

5 V

5 V Electronic

Fieldbus

Interface

Fieldbus

Interface

10 nF

24 V 0 V

1 2 3 4

750-344

Fig. 3-2: Power supply g034401e

The integrated power supply provides the required power to the electronics and I/O modules.

An electrically isolated power supply is provided to the fieldbus interface.


INTERBUS

50 • Feldbus Coupler 750-344 / -345

Hardware

3.1.2.3 Fieldbus Connection

The WAGO-I/O SYSTEM 750 for INTERBUS is equipped with two 9-pole

D-SUB connectors for fieldbus connection. INTERBUS makes a distinction between the "incoming" and "outgoing" interface.

Input interface: 9 pole D-Sub (male)

DO1

DI1

GND1

GND1

VCC1

1

2

3

4

5

6

7

8

9

DO1

DI1

VCC1 n.c.

Fig. 3-3: "Connector" terminal assignment g012231e

The incoming interface provides electrical isolation between the fieldbus and the bus coupler.

Output interface: 9 pole D-Sub (female)

RBST

DI2

DO2

9

8

7

6

2

1

5 + 5 V

4 n.c.

3 GND

DI2

DO2

Fig. 3-4: "Socket" terminal assignment g012229e

Note

A jumper in the plug (mating connector) for the outgoing interface between Pin

5 (+5 V) and 9 (RBST) causes the electronics to assume that a downcircuit

INTERBUS module is present. If this jumper is missing, no downcircuit fieldbus devices will be recognized.

This jumper is already present in the plug for standard cables fabricated based on the INTERBUS standard.

The +5 V voltage may not be used for other purposes.

Electrical isolation between the fieldbus interface and the internal electronics is provided via an internal power supply unit and optocouplers.

The connection point of the coupler is lowered to fit in an 80mm high switch box once connected to the INTERBUS connector.

INTERBUS


Hardware

3.1.2.4 Indicators

The operating status of the fieldbus couplers and of the node is signaled via light diodes (LEDs).

Fig. 3-5: Indicators 750-344 g012232x

LED

READY

BA

RC

RD

Color green green

Meaning

The READY LED shows the status for power supply and the operational readiness of the coupler.

The BA LED shows that the bus is active, with data transfer taking place. green yellow

The RC LED shows the status of the incoming interface.

The RD LED shows the status of the transferring remote bus (outgoing interface).

/green

/ orange

The "I/O" LED indicates both the internal bus communication and occurring errors.

3.1.2.5 Configuration Interface

The configuration interface is located behind the cover flap. It is used to communicate with WAGO-I/O-CHECK and for transmitting of firmware. open flap

Configuration interface

Fig. 3-6: Configuration interface

Notice!

Only the communication cable (750-920) may be connected to the 4-pole header. g01xx06e


INTERBUS

52 • Feldbus Coupler 750-344 / -345

3.1.3 Operating system

The system can be started up after configuring the INTERBUS Master system and after electrical installation of the fieldbus station.

The coupler checks the data bus when power is applied. Following this the I/O modules and the present configuration is determined. At the same time, a list is generated which is not visible from outside. This includes an input and an output area, which is shown on the fieldbus RAM of the protocol chip.

In the event of an error the coupler switches to "Stop". The I/O LED flashes red. After a trouble-free startup, the coupler enters the "Fieldbus start" mode and the I/O LED lights up green.

Fig. 3-7: Operating system - Power on g012113e

INTERBUS


Process Image

3.1.4 Process Image

3.1.4.1 Local Process Image

After being switched on, the coupler identifies all I/O modules connected that supply or are expected to receive process data (data width or bit width > 0). In nodes analog and digital I/O modules can be fitted mixed.

NOTE:

For the number of input and output bits and bytes of the individual connected

I/O modules, please see the corresponding descriptions of the I/O modules.

The coupler creates a local process image on the basis of the data width, the type of I/O module and the position of the module in the node. This is divided into an input and an output area.

For both the local input and the output process image, I/O module data is stored in the corresponding process image. This is based on the order in which the modules are connected to the coupler.

The data of the word-oriented modules (analog modules and specialty modules) are stored first in the process image. The bits of the bit-oriented

(digital) modules are sent byte by byte and added to the analog data. If the amount of digital information exceeds 8 bits, the coupler automatically starts with a new byte.

3.1.4.2 Allocation of the Input and Output Data

The process data is exchanged via the INTERBUS with the higher ranking controls (master). The maximum data width in the input and output process image is 20 bytes.

The process image is broken down into input and output data through the internal structure of the INTERBUS coupler.

Input data

Output Data

E0

|

E

n

E n+1

|

E n+m

A0

|

A n

A n+1

|

A n+m word-oriented data bit-oriented data word-oriented data bit-oriented data


INTERBUS

54 • Feldbus Coupler 750-344 / -345

Based on this break-down, the first addresses assigned in the configuration are reserved for analog inputs and outputs. Counting is from left to right, beginning with the first analog channel next to the bus coupler.

3.1.4.3 Bus Modules Process Images on the Interbus

The status bytes (S), control bytes (C) and data bytes (D0...Dn) for for byte- and word-oriented modules are mapped in the Motorola format on the

Interbus.

NOTE:

For the significance of input and output bits/bytes of the individual I/O modules, please refer to the corresponding description of the I/O modules.

3.1.4.3.1 2 DI Modules

750-400, 750-401, 750-405, 750-406, 750- 410, 750-411,750-412

Process Image in [Bit]

3.1.4.3.2 2 DI Modules with Diagnostics

750-419, 750-425 (1 bit diagnostics / channel)


750-418 (1 bit diagnostics / channel, 1 bit confirmation / channel)


INTERBUS


Process Image

3.1.4.3.3 4 DI Modules

750-402, 750-403, 750-408, 750-409, 750-414, 750-415, 750-422,750-423,

750-424


3.1.4.3.4 8 DI Modules

750-430, 750-431


3.1.4.3.5 2 DO Modules

750-501, 750-502, 750-509, 750-512, 750-513, 750-514, 750-517, 750-535


3.1.4.3.6 2 DO Modules with Diagnostics

750-507, 750-522 (1 bit diagnostics / channel)


750-506 (2 bit diagnostics / channel)



INTERBUS

56 • Feldbus Coupler 750-344 / -345

3.1.4.3.7 4 DO Modules

750-504, 750-516, 750-519


3.1.4.3.8 8 DO Modules

750-530


INTERBUS

3.1.4.3.9 Supply modules

750-610, 750-611 (with diagnostics)


0 8

INTERBUS 2 0

3.1.4.3.10 2 AI Modules

750-461, 750-462, 750-465, 750-466, 750-467, 750-469, 750-472, 750-474,

750-475, 750-476, 750-477, 750-478, 750-479, 750-480, 750-483, 750-491,

750-492

Process Image in [Byte]

INTERBUS Mapping

Channel 1

Channel 2

MOTOROLA

Input Output

D1 -

D0 -

D3 -

D2 -

INTERBUS


Process Image

3.1.4.3.11 4 AI Modules

750-453, 750-455, 750-457, 750-459, 750-460, 750-463, 750-468



Channel 1

Channel 2

Channel 3

Channel 4

3.1.4.3.12 2 AO Modules

750-550, 750-552, 750-554, 750-556


MOTOROLA

Input Output

D1 -

D0 -

D3 -

D2 -

D5 -

D4 -

D7 -

D6 -


Channel 1

Channel 2

MOTOROLA

Input Output

- D1

- D0

- D3

- D2


INTERBUS

58 • Feldbus Coupler 750-344 / -345

3.1.4.3.13 4 AO Modules

750-551, 750-553, 750-555, 750-557, 750-559



Channel 1

Channel 2

Channel 3

Channel 4

3.1.4.3.14

Counter Modules

750-404, 750-638



Channel 1

MOTOROLA

Input Output

- D1

- D0

- D3

- D2

- D5

- D4

- D7

- D6

MOTOROLA

Input Output

S C

- -

D3 D3

D2 D2

D1 D1

D0 D0

INTERBUS

3.1.4.3.15 PWM Modules

750-511



Channel 1

Channel 2

3.1.4.3.16 SSI Transmitter Interface

750-630



Channel 1


Process Image

MOTOROLA

Input Output

S C

D1 D1

D0 D0

S C

D3 D3

D2 D2

MOTOROLA

Input Output

D3 -

D2 -

D1 -

D0 -


INTERBUS

60 • Feldbus Coupler 750-344 / -345

3.1.4.3.17 Incremental Encoder Interface

750-631, 750-634, 750-637



Channel 1

MOTOROLA

Input Output

S C

D1 D1

D0 D0

D3 D3

D2 D2

3.1.4.3.18 Digital Impulse Interface

750-635



Channel 1

MOTOROLA

Input Output

S C

D0 D0

D1 D1

D2 D2

INTERBUS

3.1.4.3.19 Serial Interfaces

750-650, 750-651, 750-653, 750-654



Process Image

INTERBUS


Channel 1

4 / 6 4 / 6

MOTOROLA

Input Output

S C

D0 D0

D1 D1

D2 D2

D3 (6)

D4 (6)

D3 (6)

D4 (6)


INTERBUS

62 • Feldbus Coupler 750-344 / -345

Configuration

3.1.5 Configuration

3.1.5.1 INTERBUS Files

Further information

INTERBUS files for configuring I/O modules are available under item number 750-913 on disk, or at the WAGO Internet site. http://www.wago.com

3.1.5.2 ID Code

During the ID cycle, which is performed for initialization of the INTERBUS system, the connected subscribers (slaves) "declare" themselves by their function and their byte length. The INTERBUS fieldbus coupler determines the length of the system after power on during the initialization phase of the

I/O modules and generates a corresponding ID code. Each slave has a 2-byte

ID register implemented for this.

Different types of slaves and data widths are used for coding on the

INTERBUS. The enables the master to establish which devices belong to which device categories, i.e., to recognize frequency converters or I/O units such as the WAGO-I/O-SYSTEM. Device types or manufacturers are not recognized. An explanation of how the ID code is set up and the meaning of the individual bits of this ID code is given below.

Length data can be coded as 0 to 32 words:

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Messages

Data width

Class of user

Type of user

Data direction

I, O, I/O

Fig. 3-8: Structure of the INTERBUS ID code g012233e

The device group is encoded in the lowest 8 bits in the ID registers (ID 0 to7).

The next 5 bits (ID 8 to 12) contains the coding for the data width. The highest

3 bits (ID 13 to 15) are used for management functions. Dynamic error messages are transmitted via these bits during operation. These bits are not defined by the hardware.

INTERBUS


Configuration

3.1.5.3 ID Code to the WAGO I/O System

On account of common use of digital, analog and special function at one fieldbus station, the structure of the INTERBUS ID codes makes it necessary to use more than one ID code.

The WAGO INTERBUS coupler reports in as a remote bus subscriber with a variable length.

The ID code 0x3c is set when power is switched on. This code is then overwritten by an ID code as given in the following table after importing the module configuration:

ID Code dec, hex

Digital

Output

1, 0x01 x

2, 0x02

3, 0x03 x

49, 0x31 - x

Digital

Input x x

Analog

Output

Analog

Input

[x]:present [ ]: not present [-]:may also be present

It is essential for the master to "know" how many data registers each slave occupies in the INTERBUS system. For example, if a slave has 16-bit inputs and 32-bit outputs it occupies 2 words at the master. Here, the larger value is significant. Coding of the data width is given by bits ID8 to ID12.

The following table shows the register widths as a function of the connected

I/O modules at the WAGO INTERBUS coupler. Possible data width values are:

Data width Bus coupler Comments

0 words x

1 word

2 words

3 words

4 words

5 words x x x x x

6 words

7 words

8 words

9 words

10 words x x x x x


INTERBUS

64 • Feldbus Coupler 750-344 / -345

Configuration

3.1.5.4 Example

Allocation can be clearly illustrated here by a fieldbus node with a coupler and

18 I/O modules.

Fig. 3-9: Application example

No. I/O module

2

3

4

5

7

8

Digital input

Digital input

Digital input

Digital input

Digital input

Digital input

Digital input

Digital input

Digital input

Digital input

Digital input

Digital input

Analog input

Analog input

Digital output

Digital output

Digital output

Digital output

Digital output

Digital output

Digital output

Digital output

Master addresses *)

Inputs

---

P32.0

P32.1

P32.2

P32.3

P32.4

P32.5

P32.6

P32.7

P33.0

P33.1

P33.2

P33.3

P20

P22

---

Outputs

---

---

P28.0

P28.1

P28.2

P28.3

P28.4

P28.5

P28.6

P28.7 g012234x

INTERBUS


Configuration

No. I/O module Master addresses *)

9

10

12

13

14

15

17

Digital output

Digital output

Digital output

Digital output

Digital output

Digital output

Digital output

Digital output

Analog output

Analog output

Analog input

Analog input

Analog output

Analog output

Analog input

Analog input

Digital output

Digital output

Digital output

Digital output

Inputs

---

P24

P26

P28

P30

---

--- ---

*) The master addresses given in the table correspond to the allocation of the process data indicated in the master configuration.

Outputs

P29.0

P29.1

P29.2

P29.3

P29.4

P29.5

P29.6

P29.7

---

P20

P22

P24

P26

---

P30.0

P30.1

P30.2

P30.3


INTERBUS

66 • Feldbus Coupler 750-344 / -345

Diagnostics

3.1.6 Diagnostics

3.1.6.1 Standard Couplers 750-344 and 750-345

The bus coupler reports an error in the periphery to the master when there is a disturbance of data bus operation.

The bus coupler cancels the error message when the error has been eliminated.

3.1.6.2 Diagnostics Couplers 750-344/000-003 and 750-345/000-003

In addition to providing periphery error messages (see above), this bus coupler also provides diagnostics information to the process data.

3.1.6.2.1 Buffer for Diagnostics Data (only with Diagnostics Couplers)

The diagnostics information is buffered in the bus coupler until it is requested by the master. When error data is output, the oldest error is output first. The buffer can accommodate a total of 64 entries. Other diagnostics information is discarded when this buffer becomes completely full. New entries are not accepted until the higher-order PLC has read and acknowledged an existing entry, thus creating space in the buffer for other (new) entries.

Data transmission between the master and the bus coupler is synchronized using a hand-shake technique. The diagnostics information is transferred to the process input data from the bus coupler. Confirmation of the data, or deleting of diagnostics information takes place in the process output data.

Diagnostics information is obtained by the bus coupler through cyclic querying of the internal diagnostics buffer. Diagnostics information for a module is processed on each query of the associated function.

INTERBUS


Diagnostics

3.1.6.2.2 Diagnostics Word in the Process Output Image

The diagnostics output word (first work in the process output image) has the following functions.

Data bit Meaning

D15 Reserved (= 0)

D14

D13 Reserved

D12

D11

D10

D9

D8

D7 Delete diagnostics memory completely in the fieldbus coupler

D6

D5

D4

D3

D2

D1

D0 confirm current diagnostics information

The current diagnostics information is transferred in the diagnostics input word (first word in the process input image) from the fieldbus coupler. If the bit D0 is set in the diagnostics output word, the current diagnostics information will be confirmed in the bus coupler. The coupler sets the contents of the diagnostics input word to 0 once it has received confirmation. After this, the master must de-activate the D0 bit again in the diagnostics output word.

When this status is detected, the coupler checks whether the buffer contains any other diagnostics information. If other data is present the coupler enters the next data into the diagnostics input word.

Unused bits in the diagnostics output word must be set to '0'


INTERBUS

68 • Feldbus Coupler 750-344 / -345

Diagnostics

3.1.6.2.3 Diagnostics Word in the Process Input Image

The diagnostics input word (first work in the process input image) has the following functions.

D7

D6

D5

D4

Data bit Meaning for module error

D15

D14

Meaning for bus coupler error

Type of error for identifying the error source

D13

D12

D11

D10

D9

D8

Error code for identifying the type of error

Blink code

Channel number 0..7 for identifying the location of the error

Blink argument

D3

D2

D1

Module number 0..63 for identifying the location of the error

D0

The error types are explained in the following table:

Error type Meaning

000

B

001

B

Reserved

010

B

Bus coupler error message

011

B

Reserved

100

B

Module error message

101

B

Reserved

110

B

Reserved

111

B

Reserved

INTERBUS


Diagnostics

The error codes for module errors are explained in the following table:

Error code Meaning

1001

B

1010

B

1011

B

1100

B

1101

B

1110

B

0000

B

0001

B

0010

B

0011

B

0100

B

0101

B

0110

B

0111

B

1000

B

Fuse error (digital module)

No power (digital module)

Wire break (digital module)

1111

B

Short circuit (digital module)

3.1.6.2.4 Processing of the SUPI3 Input StatERR

The StatErr input of the SUPI3 is used for detection of errors in the periphery by the PLC. The bus coupler switches the input to active (=0) when an internal error or a diagnostics message has been detected. This input remains active until the cause for the error has been eliminated. This is the case for standard bus couplers when a data bus error is no longer present. In a bus coupler with advanced diagnostics function the input is not de-activated until the error buffer has been exported completely.


INTERBUS

70 • Feldbus Coupler 750-344 / -345

3.1.7 LED Indication

For the on-site diagnostics the coupler has five LEDs, which display the operating status of the coupler or the complete node.

Fig. 3-10: Indicators 750-344 g012232x

3.1.7.1 Fieldbus status

The fieldbus status is indicated by the four LEDs READY, BA, RC and RD:

LED

READY

Ready for

operation

BA

Bus Active

RC

Remote

Connected

RD

Remote

Disconnected

Color Status green ON

OFF green ON

BLINKS

OFF green ON

OFF yellow ON

OFF

Meaning

Power supply within acceptable tolerance range, device is ready for operation

Device not ready for operation, insufficient power supply

Bus is active, data transmission taking place

INTERBUS controller has active configuration, data transmission not yet started

Bus not active, no data transmission

Incoming interface connected, bus reset for master is inactive

Bus reset is active, or interface not connected properly

Transferring remote bus (outgoing interface) deactivated

Transferring remote bus not in use or not switched on

3.1.7.2 Blink Code

Detailed error messages are indicated by blinking codes; an error is indicated cyclically by up to 3 blinking sequences. An error is indicated cyclically by up to 3 blinking sequences.

 The error display starts with the first blinking sequence (approx. 10 Hz).

 After a short break, the second blinking sequence starts (approx. 1 Hz).

The number of light pulses indicates the error code.

 After another break, the third blinking sequence starts (approx. 1 Hz). The number of light pulses indicates the error argument.

INTERBUS


LED Indication

3.1.7.3 Node Status

The I/O-LED indicates the operation of the node and signals faults occurring.

I/O green

Off red red flashing red flashing cycle orange

Meaning

Data cycle on the internal bus

No data cycle on the internal bus

Hardware defect in the coupler

During runup: Internal bus initialized

During operation: General internal bus error

Fault message during internal bus reset and internal fault

I/O LED lights up orange during an update of the bus coupler firmware. The color orange cannot be indicated during normal operation.

Coupler boot-up occurs after switching on the power supply. While doing so, the I/O LED flashes red. In the case of an error the I/O LED continues blinking red.

In the event of error, the I/O LED continues to flash red. The error is indicated by the blink code cycle.

Supply voltage switch on

Coupler start

“I/O” LED is blinking red

Yes

Error

No

“I/O” LED is shining green

“I/O”LED

1st flash sequence

(Introduction of the error indication)

1st pause

“I/O” LED

2nd flash sequence

Error code (number of flash cycles)

2nd pause

“I/O” LED

3rd flash sequence

Error argument (number of flash cycles)

Fieldbus start

Fig. 3-11: Signaling the node status g012118d


INTERBUS

72 • Feldbus Coupler 750-344 / -345

After eliminating the error, restart the coupler by turning the power supply off and on again.

3.1.7.4 Fault Message via Blink Code of the I/O LED

Error

Argument

Error description Solution

Error Code 1: Hardware and Configuration Error

1

2

3

Compile buffer overflow.

Unknown data type.

Contact the Service office.


Checksum error for parameter data Contact the Service office.

4 Replace the coupler.

5

Error during writing of parameter memory.

Error during reading of the parameter memory.

Replace the coupler.

6

7

Module modified after an autoreset cycle.

Adapt the node configuration to the modified physical arrangement of the node.

Load the configuration and restart the coupler by turning the power off and on again.


8

Error during writing to the serial

EEPROM.

Timeout during writing of the parameter memory.


Error code 2: Internal status monitoring

1 Process image not active

2

3

Process image too large

Error during generation of the process image

Error code 3: command error internal data bus

0 I/O modules have incorrectly identified the data bus command.




Determine the location at which the data bus has been disrupted.

Plug the end module into the middle of the node. Switch off the coupler and switch it back on. The

I/O LED continues to flash. Move the end module again. If only one module is left on the coupler and the I/O LED lights up, either this module is defective or the coupler.

Replace the faulty component.

INTERBUS


LED Indication

Error

Argument

Error description Solution

Error code 4: data error internal data bus

0 n* (n>0)

Data error on data bus, data bus disrupted downstream of coupler.

Switch off the power for the coupler. Connect the module downcircuit of the coupler, or replace the existing coupler and switch the power back on.

Data bus disruption downstream of modules.

Switch off the power for the coupler. Replace the nth module and switch power back on.

Error code 5: error in register communication n* Internal data bus error during register communication with I/O modules.

Switch off the power for the coupler. Replace the nth module and switch power back on.

* The number of light pulses (n) indicates the position of the I/O module. I/O modules without data are not counted (e.g. supply modules without diagnostics).

Example: The 13th module is removed

1. The "I/O" LED starts the error display with the first blinking sequence (approx. 10

Hz).

2. After the first break, the second blinking sequence starts (approx. 1 Hz). The I/O LED blinks four times, thus indicating error code 4 (data error internal bus).

3. After the second break, the third blink sequence starts. The I/O LED blinks twelve times. Error argument 12 means that the internal bus is disrupted behind the 12th I/O module.


INTERBUS

74 • Feldbus Coupler 750-344 / -345

3.1.8 Fault behavior

3.1.8.1 Loss of fieldbus

A fieldbus failure is indicated, for example, if the master is switched off or if the bus cable is interrupted. An error at the master can also result in a fieldbus failure.

On a failure of the fieldbus, the green BA LED goes out and the coupler deactivates all outputs.

Substitute value

Minimum value

Stop internal bus

Value (bit orientated)

Digital Output Modules

Value (byte orientated)

Analog Output Modules

0 0 and 4 mA, -10 and 0 V

Response determined by the I/O module

All values in the output process image are set to 0 by the coupler. With I/O modules that have a byte orientated data width (e.g. pulse width module), the substitute value is determined using the value range.

As soon as the fieldbus is reactivated, the process data is transmitted again and the outputs of the node are set accordingly.

3.1.8.2 Internal bus failure

An internal bus failure occurs, for example, if a bus module is removed. If the error occurs during operation, the output modules operate as they do during an internal bus stop: The input process image is reset and the bus coupler reports a periphery error to the master.

The I/O LED flashes red. The bus coupler generates a detailed diagnostic message.

After the internal bus error has been eliminated, the coupler is restarted automatically. The process data is transmitted again and the outputs of the node are set accordingly.

INTERBUS


Technical Data

3.1.9 Technical Data

System data

Number of I/O modules

Number of I/O points

Transmission medium

Fieldbus segment length

Baud rate

Data transmission time with 10 slaves, each with 32 DIs and 32 DOs

Bus coupler connection

Standards and approvals:

UL (UL508)

DEMKO

256

4096 (dependent on master) certified CU cable

400 m at 500 Kbit/s (750-344)

150 m at 2 Mbit/s (750-345)

500 kBaud (750-344)

2 MBaud (750-345) approx. 1.4 ms (750-344) approx. 0.35 ms (750-345)

1 x D-SUB 9; plug for incoming interface

1 x D-SUB 9; socket for outgoing interface

E175199

02 ATEX 132273 X

II 3 GD EEx nA II T4

EN 50 254

CE

Standard

Conformity marking

Technical Data

Number of I/O modules 64

Fieldbus

-Input process image

-Output process image

Configuration max. 20 bytes max. 20 bytes via PC or PLC

Power supply

Input current typ. at rated load

Efficiency of power supply nominal load typ.

at

Internal current consumption

Total current for I/O modules

Dimensions (mm) W x H x D

Weight

EMC -Immunity to interference

EMC-Emission of interference

24 VDC (-15%/+ 20%)

260mA at 24V

80 %

350mA at 5V

650mA at 5V

50 x 65* x 100

*from upper edge of mounting rail approx. 115 g acc. to EN 50082-2 (96) acc. to EN 50081-2 (94)

Accessories

INTERBUS Files

Miniature WSB Quick marking system

Download: www.wago.com


INTERBUS

4 I/O Modules

This manual does not contain a detailed description of the fieldbus independent WAGO-I/O-SYSTEM 750 I/O modules.

Further information

Refer to the standard manual or the specific data sheets for information about the I/O modules.

Current information about these is also given on the Internet at www.wago.com

INTERBUS

INTERBUS • 77

5 INTERBUS

5.1 Overview

INTERBUS is standardized as a fieldbus in EN 50 254. This bus is set up as a data ring with a central bus master linked to bus slaves.

There are several types of INTERBUS variants, with two fieldbus variants listed here for decentralized periphery:

 Remote bus

 Installation remote bus

5.1.1 Remote Bus Features

 1 Master, up to 256 Slaves

 Ring structure with active coupling of subscribers

 Max. length of fieldbus segment 400 m / 150 m

 Max. expansion

12.8 km (certified copper cable) RS 485 with 9-pole D-Sub connector

100 km (fiber optic cable)

 Data transmission rate 500 kbit/s,

 Data transmission rate 2 Mbit/s,

 On each restart the master generates a current list of connected subscribers

(slaves)


INTERBUS

78 • INTERBUS

5.1.2 Description

The physical structure of the bus is set up as a point-to-point link between the subscribers. Each subscriber has an "incoming" bus and an "outgoing" bus.

Remote bus

Master

Remote bus device

Bus coupler

Remote bus segment





Fig. 5-1: INTERBUS, remote bus topology g112200d

Possible configuration:

 Fieldbus Master:

PC interface card INTERBUS master,

INTERBUS master of various manufacturers

 Fieldbus devices:

WAGO-I/O-SYSTEM 752, I/O module, digital signals

WAGO-I/O-SYSTEM 750, Modular I/O system, digital and analog signals

The INTERBUS transmission protocol can be viewed as a large shift register.

Each slave, with its input and output data, along with the position and width, is a set component of this shift register. Each cycle here is both an input and an output cycle. While the Master enters output data into this shift register it simultaneously receives input data at the other side of the ring. Each Slave receives data at its input and, at its output, sends this data on to the next subscriber. This means that the slave also acts as a bus repeater.

INTERBUS

INTERBUS • 79

The subscribers are assigned their address automatically based on their physical position in the bus system. Control signals (CLOCK, RESET,

SELECT, CONTROL) allow each single subscriber to be monitored.

Each subscriber has its own ID register that contains information about the type of module, number of I/O addresses and status and error status data.

The INTERBUS uses two operating modes:

1. ID Cycle

In the ID cycle the interface module exports the ID registers from all devices connected to the bus system and sets up the process map using this information. This cycle is used for initialization and is performed on request.

2. Data Cycle

In the data cycle the input data from all of the devices is transmitted from the registers to the master and output data transferred from the master to the devices.

5.1.2.1 Example of remote bus cable

Standard 9-pole D-SUB plugs or sockets can be used as connectors.

9 pole D-SUB

(male)

9 pole D-SUB

(female)

7

3

4

1

6

2

5

8

9

DO

DO

DI

DI

GND

DO

DO

DI

DI

GND

7

3

4

1

6

2

5

8

9

Color coding

DO - DO Yellow

DI - DI

GND

Green

Grey

Pink

Brown

Cable grip/

Housing

Fig. 5-2: Example of a remote bus cable

Cable grip/

Housing g012235d


INTERBUS

80 • INTERBUS

5.2 Interface Modules

Master operation is performed by a central control system, such as PLC, NC or RC. The fieldbus devices are linked via interface modules.

Interface modules for programmable logic controllers (PLCs) and PC interface cards are available from different manufacturers for INTERBUS.

5.3 Configuration Software

The interface modules must be configured with the specific station data to enable links to be set up between the PLC and the fieldbus devices.

The software for configuration, commissioning and diagnostics is either included with the interface modules or PC interface cards, or is available from other manufacturers as an accessory item.

INTERBUS

INTERBUS • 81


INTERBUS

WAGO 750 series manual

Modular I/O system

INTERBUS

750-344, 750-345

Manual

Technical Description,

Installation and

Configuration

Version 1.0.0

1 Important Notes

1.1 Legal Bases

1.2 Standards and Guidelines for Operating the 750 Series

1.3 Symbols

1.4 Safety Information

1.5 Font Conventions

1.6 Number Notation

1.7 Scope of Validity

1.8 Abbreviations

2 The WAGO-I/O-SYSTEM 750

2.1 System Description

2.2 Technical Data

2.3 Manufacturing Number

2.4 Component Update

2.6 Mechanical Setup

2.7 Power Supply

2.8 Grounding

2.9 Shielding (Screening)

2.10 Assembly Guidelines/Standards

3 Fieldbus Couplers

3.1 Feldbus Coupler 750-344 / -345

4 I/O Modules

5 INTERBUS

5.1 Overview

5.2 Interface Modules

5.3 Configuration Software

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