WAGO 750-333, 750-833 User guide
Modular I/O System
PROFIBUS DPV1
750-333 / 750-833
Manual
Technical description,
installation and
configuration
Supplement for the Manual 750-131
Version 2001-02-27
ii • General
Copyright ã 2001 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: info@wago.com
Web: http://www.wago.com
Technical Support
Phone: +49 (0) 571/8 87 – 5 55
Fax: +49 (0) 571/8 87 – 4 30
E-Mail: support@wago.com
Every conceivable measure has been taken to ensure the correctness and completeness of this documentation. However, as errors can never be fully excluded we would appreciate any information or ideas at any time.
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.
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
TABLE OF CONTENTS
1 Important comments..................................................................................1
1.1 Legal principles......................................................................................1
1.2 Scope ......................................................................................................2
1.3 Symbols..................................................................................................2
1.4 Font conventions ....................................................................................3
1.5 Number notation.....................................................................................3
1.6 Abbreviation...........................................................................................4
2 WAGO-I/O-SYSTEM 750.........................................................................5
2.1 System Description ................................................................................5
2.2 Installation..............................................................................................8
2.3 Electrical Installation............................................................................11
2.4 Power supply........................................................................................13
2.5 Manufacturing Number ........................................................................16
2.6 Technical Data......................................................................................17
Table of Contents • iii
3 Fieldbus coupler / controller ...................................................................19
3.1 Fieldbus coupler 750-333.....................................................................19
3.2 Fieldbus Controller 750-833 ................................................................74
4 I/O Modules ............................................................................................132
4.1 Digital Input Modules ........................................................................132
4.2 Digital Output Modules......................................................................132
4.3 Analog Input Modules........................................................................132
4.4 Analog Output Modules.....................................................................132
4.5 ............................................................................................................132
5 PROFIBUS..............................................................................................133
5.1 Description .........................................................................................133
5.2 Topology ............................................................................................133
5.3 Wiring ................................................................................................133
6 Configuration example ..........................................................................135
6.1 NETCON............................................................................................135
6.2 Step 7..................................................................................................135
6.3 COM Profibus ....................................................................................135
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
iv • Table of Contents
7 Explosive Environments ........................................................................136
7.1 Foreword ............................................................................................136
7.2 Protective measures............................................................................136
7.3 Classification meeting CENELEC / IEC............................................136
7.4 Classifications meeting the NEC........................................................141
7.5 Identification acc. to CENELEC, IEC and ATEX 100a.....................143
7.6 Identification acc. to NEC 500...........................................................144
7.7 Installation regulations .......................................................................145
8 Glossary...................................................................................................147
9 Literature list ..........................................................................................149
10 Index ........................................................................................................150
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
1 Important comments
To ensure fast installation and start-up of the units described in this manual,
we strongly recommend that the following information and explanation is
carefully read and adhered to.
1.1 Legal principles
1.1.1 Copyright
This manual is copyrighted, together with all figures and illustrations contained therein. Any use of this manual which infringes the copyright provisions
stipulated herein, is not permitted. Reproduction, translation and electronic
and photo-technical archiving and amendments require the written consent of
WAGO Kontakttechnik GmbH. Non-observance will entail the right of claims
for damages.
Important comments • 1
1.1.2 Personnel qualification
The use of the product detailed in this manual is exclusively geared to specialists having qualifications in PLC programming, electrical specialists or persons instructed by electrical specialists who are also familiar with the valid
standards. WAGO Kontakttechnik GmbH declines all liability resulting from
improper action and damage to WAGO products and third party products due
to non-observance of the information contained in this manual.
1.1.3 Intended use
For each individual application, the components supplied are to work with a
dedicated hardware and software configuration. Modifications are only admitted within the framework of the possibilities documented in the manuals. All
other changes to the hardware and/or software and the non-conforming use of
the components entail the exclusion of liability on part of WAGO Kontakttechnik GmbH.
Please direct any requirements pertaining to a modified and/or new hardware
or software configuration directly to WAGO Kontakttechnik GmbH.
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
2 • Important comments
1.2 Scope
This manual describes the field bus independent WAGO-I/O-SYSTEM 750
with the fieldbus coupler for PROFIBUS.
Item-No. Components
750-333 PROFIBUS DP/DPV1 12 MBd
750-833 Contr. PROFIBUS DP/DPV1 12 MBd
750-xxx I/O Modules
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 must always be observed to ensure smooth operation.
ESD (Electrostatic Discharge)
Warning of damage to the components by electrostatic discharge. Observe the
precautionary measure for handling components at risk.
Note
Routines or advice for efficient use of the device and software optimisation.
More information
i
References to additional literature, manuals, data sheets and INTERNET
pages
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
1.4 Font conventions
Important comments • 3
Italic
Italic
\
END
< >
Courier
1.5 Number notation
Names of path and files are marked italic
e. g.: C:\programs\WAGO-IO-CHECK
Menu items are marked as bold italic
e. g.: Save
A backslash between two names marks a sequence of
menu items
z. B.: File\New
Press bottons are marked as bold with small capitals
e. g.: ENTER
Keys are marked bold within angle brackets
e. g.: <F5>
Program code are printed with the font Courier.
e. g.: END_VAR
Number Code Example Note
Decimal 100 normal notation
Hexadecimal 0x64 C notation
Binary '100'
'0110.0100'
Within ',
Nibble separated with dots
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
4 • Important comments
1.6 Abbreviation
DI
DO
I/O
ID
PFC
PFC-PI
PFC-RTS
PI
PLC
AO
AI
SM
Digital Input
Digital Output
Input/Output
Identifier
Programmable Fieldbus Controller
Programmable Fieldbus Controller - Process Images
Programmable Fieldbus Controller - Runtime system
Process Images
Programmable Logic Control
Analog Output Module
Analog Input Module
Special Module
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
2 WAGO-I/O-SYSTEM 750
2.1 System Description
2.1.1 General
The WAGO-I/O-SYSTEM 750 consists of various components which are capable of providing modular and application specific fieldbus nodes for various
fieldbusses.
A fieldbus node (short: Node) consists in principle of a fieldbus coupler (short:
Coupler) ) or Programmable Fieldbus Controller (short: Controller) ) (1) at the
front end, a number of special I/O modules (2) and a End Module (3) which is
placed at the other end.
PROFIBUS
RUN
BF
24V
01 02 04 050607
0V
DIA
BUS
I/O
03
++++++++
WAGO-I/O-SYSTEM 750 • 5
System Description
TxD RxD
+ +
D+ D-
+ +
RTS CTS
11 12
09 10
L
L
L
13 23
LL L
17
21 22
26
29
30 31 32
max. 6,3A
250 V
+ +
24
181920
161514
27
CL-CL+
750-630 750-650
MM
SS
3
N
N
0
9
8
7
6
X10
0
9
8
7
6
X1
1
5
1
5
2
3
4
750-333
2
3
4
750-400 750-410 750-403 750-454 750-467 750-461
N
08
750-512 750-512 750-513 750-610
750-612
1 2
NN N
M M
S S
M M
25
28
S S
S SMMSS
S S
750-552750-550 750-600
Fig. 2-1: Setting up a fieldbus node for PROFIBUS g01x101x
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
6 • WAGO-I/O-SYSTEM 750
System Description
2.1.2 Coupler/Controller (1)
The Coupler/Controller forms the link between the fieldbus and the field devices with their I/O functions. All control functions required for the faultless
operation of the I/O functions are carried out by the Coupler/Controller. The
connection to different fieldbus systems is established by each of the corresponding Coupler/Controller, e.g. for PROFIBUS, INTERBUS, CAN,
MODBUS etc. In this way a change of the fieldbus system is possible.
The programmable fieldbus controller 750-833 combines the PROFIBUS DP
functionality of the fieldbus coupler 750-333 with the functionality of a Programmable Logic Control (PLC). Programming of the application is done with
WAGO-I/O-PRO in accordance with IEC 61131-3, covering all 5 programming languages. The programmer can access all fieldbus and I/O data.
Characteristics and use of the Controllers:
• The use of decentralized control can better support a PLC or PC
• Signal pre-processing reduces fieldbus transmissions
• Complex applications can be divided into multiple tasks
• Tasks can be prioritized
• Peripheral equipment can be controlled directly, resulting in faster system
response times
• Programmable response in the event of a fieldbus failure
• Simple, self-sufficient control
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
2.1.3 I/O Modules (2)
In the I/O modules, the incoming process data is converted. Corresponding to
the different requirements, special I/O modules are available for a variety of
functions. There are digital and analog inputs and outputs and modules for
special functions (Counter modules, Terminal blocks for encoder and resolvers
and communication modules).
2.1.4 End Module (3)
A End Module is needed for faultless operation of the node. The termination
module is always placed as the last module in order to obtain a termination of
the fieldbus node. This module has no I/O function.
WAGO-I/O-SYSTEM 750 • 7
System Description
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
8 • WAGO-I/O-SYSTEM 750
Installation
2.2 Installation
2.2.1 Safty notes
ESD (Electrostatic Discharge)
The modules are equipped with electronic components which 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. gold contacts.
Attention
Switch off the system prior to working on bus modules!
2.2.2 Mechanical Installation
All system components can be snapped directly on a carrier rail in accordance
with the European standard EN 50022 (DIN 35).
Attention
Ensure that the carrier rail is fastened with countersunk head screws or blind
rivets as the snap-on foot of the I/O components extends onto the carrier rail.
The installation is simple and space saving. All modules have the same shape
to minimize the project commitment.
The reliable positioning and connection of the coupler and the individual I/O
modules is made using a tongue and groove system. Due to the automatic
locking, the individual components are securely seated on the rail after installing.
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
WAGO-I/O-SYSTEM 750 • 9
Installation
To secure the coupler/controller against moving sideways, fix it with the orange colored locking disc on the carrier rail. To fix, insert a screwdriver into
the top groove of the locking disc and press.
To pull out the fieldbus coupler, release the locking disc by pressing on the
bottom groove with a screwdriver and then pulling the orange colored unlocking lug.
Entriegelungs-
lasche
fixieren
Fig. 2-2: Coupler/Controller and unlocking lug g012201d
lösen
It is also possible to release an individual I/O module from the unit by pulling
an unlocking lug.
Fig. 2-3: Releasing a I/O Module p0xxx01x
Danger
Ensure that an interruption of the PE will not result in a condition which
could endanger a person or equipment!
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
10 • WAGO-I/O-SYSTEM 750
Installation
Self-cleaning power jumper contacts conduct the supply voltage for the field
side. They are located on either side of the modules. The female contacts on
the right-hand side of the fieldbus coupler and the bus modules are designed as
spring contacts to protect against accidental contact. Male contacts are located
on the left-hand side of the bus modules.
Fig. 2-4: Power Jumper Contacts g01xx00d
Danger
The power contacts are sharp-edged. Handle the module carefully to prevent
injury.
Pos. 1
Pos. 2
Attention
Please take into consideration that some bus modules have no or only some
power jumper contacts. The design of some modules does not physically allow assembly them in rows as the grooves for the male contacts are closed at
the top.
The data contacts are designed as self-cleaning gold spring contacts which
automatically produce a secure connection.
Fig. 2-5: Data contacts p0xxx07x
Warning
Do not connect the I/O module to gold spring contacts in order to avoid soiling or scratches!
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
2.3 Electrical Installation
2.3.1 Wire Connection
Conductors with a cross section of 0.08 to 2.5 mm² (AWG 28-12) can be connected using a CAGE CLAMP connection to achieve a vibration resistant,
fast and maintenance free connection. To actuate CAGE CLAMP enter an
actuation tool in the opening above the connection. Following this, enter the
conductor in the corresponding opening. The conductor is clamped securely
with the removal of the actuation tool.
WAGO-I/O-SYSTEM 750 • 11
Electrical Installation
Fig. 2-6: Inserting conductor end p0xxx06x
The clamping force adjusts automatically to the cross section. The full surface
of the CAGE CLAMP pressure is applied against the conductor without
damaging it. Conductor deformation is compensated for and self-loosening is
avoided. The transition point between the conductor and the CAGE CLAMP
is protected against corrosive influences. The connection can be made quickly
and is also maintenance free, saving the costs for a periodic checking of terminal connections.
Two carrier rail contacts responsible for the electrical contact between the
grounded carrier rail and the controller, are fitted underneath the coupler/controller.
Attention
Ensure a perfect contact point between carrier rail contacts and carrier rail.
The carrier rail must be grounded.
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
12 • WAGO-I/O-SYSTEM 750
Electrical Installation
2.3.2 Change fuse
Some Power supply modules of the WAGO-I/O-SYSTEM 750 are equipped
with a fuse holder. To isolate the modules to the right of the power supply, the
fuse can be removed from the fuse holder. For this insert a srew driver into one
of the slits available on each side and lift the holder
Fig. 2-7: Removing the fuse holder p0xxx05x
The fuses can be removed from or inserted into the holder with the fuse holder
cover and push the fuse holder pushed back into the original position.
Fig. 2-8: Opening the fuse holder p0xxx03x
Fig. 2-9: Change fuse p0xxx04x
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
2.4 Power supply
WAGO-I/O-SYSTEM 750 • 13
Power supply
1
2
750-512 750-512 750-513 750-610 750-552750-550 750-600750-616
750-612
~
24V 24V 24V
Fig. 2-10: Power supply g01xx02x
230V
750-630 750-650750-400 750-410 750-403 750-454 750-467 750-461
1 – Power supply System
2 – Power supply Field-side
The power supply on the field side is electrically isolated from the system supply. In this manner sensors and actuators can be supplied and fused by a separate voltage source.
If a non-regulated power supply is used for the coupler/controller electronics
24 V voltage supply , it must be filtered through a capacitor (200 µF per 1 A
load current). To this effect a back-up capacitor module (Order-No. 288-824)
was developed for the WAGO-I/O-SYSTEM. This module serves to regulate a
noisy 24 V DC voltage supply, to keep the ripple voltage within specified limits. The cause for these fluctuations could be a voltage interruption on the primary side, a secondary side overload or the switching of ”non quenched“ inductance or capacitance.
Warning
The supply modules + and – which are permanently integrated on the buscouplers, can be supplied with 24 V DC only.
120 V AC and 230 V AC can only be supplied via modules 750-609, 750-611
and 750-612!
Warning
The ground (earth) field side contact should be disconnected when testing the
isolation. Otherwise the results could be wrong or the module could be destroyed.
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
14 • WAGO-I/O-SYSTEM 750
Power supply
2.4.1 System supply voltage
The system supply voltage (24 V DC) is filtered with a voltage regulator before powering the coupler electronics as well as to the internal bus. Electrical
isolation from the external fieldbus system depends on the type of Coupler/Controller.
The internal bus includes the internal communication between the coupler/controller and the bus modules as well as the power supply for the bus
modules. The power supply is limited to a maximum value. This value depends on the type of Coupler/Controller. If the sum of the internal power consumption of all bus modules exceeds this value, it is necessary to add additional internal system supply modules (Order-No. 750-613).
The control electronics in the bus modules are powered by snap-fit mounting
the bus modules using the internal bus contacts. A reliable contact is assured
by the gold plated, self cleaning slide contacts. The removal of a bus module
will cause an interruption in communication to the following bus modules.
The coupler/controller identifies the interruption point and displays a corresponding fault message.
Warning
Removing or inserting the I/O modules with the voltage applied can lead to
undefined conditions. For this reason only undertake work on the I/O modules
when isolated from the power supply!
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
2.4.2 Supply Voltage Field Side
The voltage is automatically supplied when the I/O modules are snapped together. Self-cleaning power jumper contacts (P.J.C.s) ensure safe connections.
The current capacity of the power contacts is 10 A max.
The PE contact is a preceding ground (earth) contact corresponding to the
standards which can be used as a protective earth. The contact has a leakage
capacity of 125 A.
Warning
Produce a low impedance connection from the carrier rail to the PE contact
point in the switch cabinet.
Attention
Depending on the I/O function, some modules do not have P.J.C.s. It is important to note this when assembling a node. Many modules require field side
power, many do not. Please review the circuit diagrams of the individual modules. An additional power supply module may be necessary.
Refer to the individual terminal/module data sheets!
WAGO-I/O-SYSTEM 750 • 15
Power supply
When adding a power supply module, the field supply is always interrupted at
the power contacts. From this point a new power supply is made, which can
also include a potential change. This feature guarantees a high degree of system flexibility.
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
16 • WAGO-I/O-SYSTEM 750
Manufacturing Number
2.5 Manufacturing Number
The production number is part of the lateral marking on the component. The
number contains the production date, the software version and the hardware of
the component.
Hansastr. 27
D-32423 Minden
ITEM-NO.:750-400
2DI 24V DC 3.0ms
2
0.08-2.5mm
24V DC
CL I DIV
AWG 28-14
Grp. A B C D
55°C max ambient
24246
LISTED 22ZA AND 22XM
0901--02----03
op temp code T4A
0V 24V DI1
II3G
KEMA 01ATEX1024 X
EEx nA II T4
Di2
PATENTS PENDING
Manufacturing Number
0
9
Calendar
week
1
0
-
Year Software
version
2
0
0
-
Hardware
version
Fig. 2-11: Manufacturing Number g01xx09e
The remaining digits and characters represent internal information by
WAGO Kontakttechnik GmbH.
As of calendar week 09/2001, the production number is additionally printed on
the cover of the configuration and programming interface of the fieldbus coupler or controller.
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
2.6 Technical Data
Mechanic
Material Polycarbonat, Polyamid 6.6
Installation on DIN 35 with interlock
modular by double featherkey-dovetail
Mounting position any position
WAGO-I/O-SYSTEM 750 • 17
Technical Data
Length of entire node
≤ 831 mm
Marking marking label type 247 and 248
paper marking label 8 x 47 mm
Wire range
Wire range CAGE CLAMP® Connection
0,08 mm² ... 2,5 mm²
AWG 28-14
8 – 9 mm Stripped lenght
Contacts
Power jumpers contacts blade/spring contact
self-cleaning
Current via power contacts
Voltage drop at I
max
max
10 A
< 1 V/64 modules
Data contacts slide contact, hard gold plated
1,5µ, self-cleaning
Climatic environmental conditions
Operating temperature 0 °C ... 55 °C
Storage temperature -20 °C ... +85 °C
Relative humidity 95 % without condensation
Resistance to harmful substances acc. to IEC 60068-2-42 and IEC 60068-2-43
Special conditions Ensure that additional measures for components are
taken, which are used in an environment involving:
– dust, caustic vapors or gasses
– ionisating radiation.
Mechanical strenght
Vibration resistance acc. to IEC 60068-2-6
Shock resistance acc. to IEC 60068-2-27
Free fall acc. to IEC 60068-2-32
≤ 1m (module in original packing)
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
18 • WAGO-I/O-SYSTEM 750
Technical Data
Safe electrical isolation
Air and creepage distance acc. to IEC 60646-1
Degree of protection
Degree of protection IP 20
Electromagnetic compatibility*
Derective Test values Strenght
class
Evaluation
criteria
Immunity to interference acc. to EN 50082-2 (95)
EN 61000-4-2 4kV/8kV (2/4) B
EN 61000-4-3 10V/m 80% AM (3) A
EN 61000-4-4 2kV (3/4) B
EN 61000-4-6 10V/m 80% AM (3) A
Emmission to interference acc. to
EN 50081-2 (94)
Measuring
distance
Class
EN 55011 30 dBµV/m (30m) A
37 dBµV/m
* Exception: 750-630, 750-631
Dimensions
02
01
A
B
24V 0V
A
C
B
D
A
C
D
A
C
B
B
D
A
C
D
C
B
D
+
+
100
-
-
PE PE
35
51
65
Seitenansicht Koppler/Controller
12
24
64
Abmessungen in mm
Fig. 2-12: Dimensions g01xx05d
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
3 Fieldbus coupler / controller
3.1 Fieldbus coupler 750-333
This chapter includes:
3.1.1 Description......................................................................................21
3.1.2 Hardware.........................................................................................22
3.1.2.1 View .........................................................................................22
3.1.2.2 Device supply...........................................................................23
3.1.2.3 Fieldbus connection..................................................................24
3.1.2.4 Display elements ......................................................................25
3.1.2.5 Station address .........................................................................26
3.1.2.6 Configuration interface ............................................................26
3.1.3 Operating system.............................................................................27
3.1.4 Process image..................................................................................28
3.1.4.1 Local process image .................................................................28
3.1.4.2 Allocation of the input and output data....................................29
3.1.5 Configuration ..................................................................................30
3.1.5.1 GSD files..................................................................................31
3.1.5.2 Identification bytes...................................................................32
3.1.5.3 Example....................................................................................34
3.1.6 Parameterising the coupler..............................................................36
3.1.7 Configuring the process data channel .............................................38
3.1.8 Configuration and parameterisation of I/O modules.......................39
3.1.8.1 Digital I/O modules..................................................................39
3.1.8.1.1 2 DI I/O modules......................................................................39
3.1.8.1.2 4 DI I/O modules......................................................................40
3.1.8.1.3 2 DI I/O modules modules with 1 bit diagn. per channel.........41
3.1.8.1.4 2 DO I/O modules ....................................................................42
3.1.8.1.5 2 DO I/O modules with 1 bit diagn. per channel......................43
3.1.8.1.6 2 DO I/O module with 2 bit diagn. per channel .......................44
3.1.8.1.7 4 DO I/O modules ....................................................................45
3.1.8.1.8 2 DI/DO I/O module with 1 bit diagn. per channel..................46
3.1.8.1.9 Internal system supply module with diagnosis.........................47
3.1.8.2 Analog I/O modules .................................................................48
3.1.8.2.1 2 AI I/O modules......................................................................48
3.1.8.2.2 4 AI I/O module .......................................................................49
3.1.8.2.3 2 AO I/O modules ....................................................................50
3.1.8.3 Digital special modules ............................................................51
3.1.8.3.1 Counter modules ......................................................................51
3.1.8.3.2 PWM module ...........................................................................52
3.1.8.4 Distance and Angle Messurment Modules...............................53
3.1.8.4.1 SSI encoder interface................................................................53
3.1.8.4.2 Incremental encoder interface ..................................................54
3.1.8.4.3 Digital impulse interface ..........................................................55
3.1.8.5 Serial interfaces ........................................................................56
3.1.9 Diagnosis.........................................................................................57
Fieldbus coupler / controller • 19
Fieldbus coupler 750-333
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
20 • Fieldbus coupler / controller
Fieldbus coupler 750-333
3.1.9.1 Station status 1 to 3 ..................................................................58
3.1.9.2 PROFIBUS-DP master address................................................58
3.1.9.3 Manufacturer‘s identification...................................................58
3.1.9.4 Identification based diagnosis ..................................................58
3.1.9.5 Device status ............................................................................59
3.1.9.5.1 Internal status messages and arguments...................................60
3.1.9.5.2 Internal bus status messages and arguments ............................60
3.1.9.5.3 PROFIBUS-DP status messages and arguments......................61
3.1.9.6 Channel based diagnosis ..........................................................62
3.1.9.6.1 Fault types of I/O modules with diagnostic capability.............63
3.1.9.6.2 I/O modules fault cases ............................................................64
3.1.10 LED signalling ................................................................................65
3.1.10.1 Blink code ................................................................................65
3.1.10.2 Fieldbus status..........................................................................66
3.1.10.3 Fault message via blink code of the BUS-LED........................67
3.1.10.4 Node status ...............................................................................68
3.1.10.5 Fault message via the blink code of the I/O LED.....................69
3.1.10.6 Supply voltage status................................................................70
3.1.11 Fault behaviour ...............................................................................71
3.1.11.1 Fieldbus failure.........................................................................71
3.1.11.2 Internal bus fault.......................................................................72
3.1.12 Technical data .................................................................................73
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
3.1.1 Description
The fieldbus coupler 750-333 displays the peripheral data of all I/O modules in
the WAGO-I/O-SYSTEM 750 on PROFIBUS DP.
In the initialisation phase the bus coupler determines the physical structure of
the node and creates a process image from this with all inputs and outputs. I/O
modules with a bit width smaller than 8 can be combined to form one byte in
order to optimise the address space.
In addition the possibility exists to deactivate projected I/O modules. In this
manner the physical structure of the node can be individually designed with
regard to the peripheral signals, without undertaking any changes to an already
existing control application.
The diagnosis concept is based on an identification and channel based diagnosis in accordance with EN 50170. Thus it is not necessary to program modules
for the evaluation of manufacturer specific diagnosis information.
Fieldbus coupler / controller • 21
Fieldbus coupler 750-333
• Max. process data length 128 Byte (input and output process image)
• Automatic recognition of transmission speed on the PROFIBUS from
9.6 kBd to 12 MBd
• All I/O modules from the WAGO-I/O-SYSTEM 750 are supported
• Configuration modules can be parameterised as wildcards.
• Parameterable substitute value for each channel
• D-Sub 9 pole bus connection
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
22 • Fieldbus coupler / controller
Fieldbus coupler 750-333
3.1.2 Hardware
3.1.2.1 View
Status der
Feldbusanschluss
D-Sub
PROFIBUS
RUN
BF
DIA
BUS
I/O
01 02
A
B
0V
24V
++
Betriebsspannung
C
D
-Leistungskontakte
-System
Datenkontakte
Versorgung
24V
0V
Versorgung über
Leistungskontakte
24V
ADDRESS
--
0V
Adresse
x1
1
0
9
2
3
8
4
7
6
5
750-333
PE PE
Leistungskontakte
Adresse
KonfigurationsSchnittstelle
9
8
7
x10
1
0
6
5
2
3
4
Fig. 3-1: Fieldbus coupler 750-333 PROFIBUS DP/V1 g033300d
The fieldbus coupler comprises of:
• Supply module with Internal system supply module for the system supply
as well as power jumper contacts for the field supply via I/O module assemblies.
• Fieldbus interface with the bus connection
• 2 rotary switches for the station address (decimal)
• Display elements (LED's) for status display of the operation, the bus com-
munication, the operating voltages as well as for fault messages and diagnosis
• Electronics for communication with the I/O modules (internal bus) and the
fieldbus interface
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
3.1.2.2 Device supply
The supply is made via terminal bocks with CAGE CLAMP® connection. The
device supply is intended both for the system and the field units.
Fieldbus coupler / controller • 23
Fieldbus coupler 750-333
1
5
24V/0V
10nF
DC
DC
Bus-
klemmen
0V
24V
2
6
24V
3
4
750-333
7
0V
8
NTERFACE
FELDBUS I
ELEKTRONIK
24V
0V
10nF
ELEKTRONIK
FELDBUS
INTERFACE
Fig. 3-2: Device supply g012105d
The integrated internal system supply module generates the necessary voltage
to supply the electronics and the connected I/O modules.
The fieldbus interface is supplied with electrically isolated voltage from the
internal system supply module.
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
24 • Fieldbus coupler / controller
Fieldbus coupler 750-333
3.1.2.3 Fieldbus connection
The PROFIBUS interface is designed as a Sub-D connection in accordance
with the US Standard EIA RS 485 for cable linked data transmission.
9-pol. D-Sub-Buchse
9
VP
8
7
6
RxD/TxD-N
Fig. 3-3: Bus connection, D-SUB g012102d
Pin Signal Description
3 RxD(TxD)-P Transmit (receive) signal
5
DGND
4
RTS
3
RxD/TxD-P
2
1
4 RTS Ready To Send
5 GND Supply ground (earth)
6 Vcc Voltage supply
8 RxD(TxD) N Transmit (receive) signal
The electrical isolation between the fieldbus system and the electronics is
achieved by means of DC/DC converters and optocouplers in the fieldbus interface.
The connection point is mechanically lowered permitting fitting in an 80 mm
high switch box once connected.
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
3.1.2.4 Display elements
The operating condition of the fieldbus coupler or node is signalled via light
diodes (LED).
PROFIBUS
A
RUN
B
BF
DIA
BUS
24V
0V
Fieldbus coupler / controller • 25
Fieldbus coupler 750-333
C
D
I/O
++
Fig. 3-4: Display elements 750-333 g012106x
LED Colour Meaning
RUN green The 'RUN' LED indicates to the operator if the fieldbus coupler /
controller is correctly initialised.
BF red The 'BF'-LED indicates whether the communication functions via
the PROFIBUS.
DIA red The 'DIA' LED indicates an external diagnosis. The signalling is not
supported by all devices.
BUS red The 'BUS'-LED signals a projecting fault.
IO red /green
/ orange
The 'I/O'-LED indicates the operation of the node and signals faults
encountered.
A green Status of the operating voltage system
C green Status of the operating voltage – power jumper contacts
WAGO-I/O-SYSTEM 750 D R A F T
PROFIBUS 2001-02-27
26 • Fieldbus coupler / controller
Fieldbus coupler 750-333
3.1.2.5 Station address
The station address (decimal) is determined using two rotary switches on the
electronic module.
ADDRESS
x1
1
0
9
2
3
8
4
7
6
5
x10
1
0
9
2
3
8
4
7
6
5
Fig. 3-5: Setting the station address g012102d
The switch „x1“ determines the units position of the address. The switch
„x10“ determines the tens positions of the address. Valid station addresses are
between 1 and 99. The coupler also permits the station address 0.
The station address is taken over by the fieldbus coupler after switching on the
device (initialisation phase). Adjustments of the switch have no effect during
operation.
3.1.2.6 Configuration interface
The configuration interface used for the communication with WAGO-I/OCHECK or for firmware upload is located behind the cover flap.
Klappe
öffnen
KonfigurationsSchnittstelle
Fig. 3-6: Configuration interface g01xx06d
The communication cable (750-920) is connected to the 4 pole header.
D R A F T WAGO-I/O-SYSTEM 750
2001-02-27 PROFIBUS
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