WAGO WAGO-I/O-SYSTEM750 Series User manual

Fieldbus Independent
I/O Modules
2 AO 4-20 mA
750-554
Manual
Version 1.0.3

ii • General
WAGO-I/O-SYSTEM 750
I/O Modules
Copyright 2007 by WAGO Kontakttechnik GmbH & Co. KG
All rights reserved.
WAGO Kontakttechnik GmbH & Co. KG
Hansastraße 27
D-32423 Minden
Phone: [phone] – 0
Fax: [phone] – 1 69
E-Mail: [email protected]
Web: http://www.wago.com
Technical Support
Phone: [phone] – 5 55
Fax: [phone] – 85 55
E-Mail: [email protected]
Every conceivable measure has been taken to ensure the correctness and com-
pleteness of this documentation. However, as errors can never be fully ex-
cluded, we would appreciate any information or ideas at any time.
E-Mail: [email protected]
We wish to point out that the software and hardware terms as well as the
trademarks of companies used and/or mentioned in the present manual are
generally trademark or patent protected.

Content • iii
WAGO-I/O-SYSTEM 750
I/O Modules
Content
1Important Comments ................................................................................. 4
1.1 Legal Principles........................................................................................4
1.1.1 Copyright ............................................................................................. 4
1.1.2 Personnel Qualification ....................................................................... 4
1.1.3 Intended Use ........................................................................................ 4
1.2 Symbols .................................................................................................... 5
1.3 Number Notation...................................................................................... 5
1.4 Safety Notes ............................................................................................. 6
1.5 Scope ........................................................................................................ 6
2I/O Modules ................................................................................................. 7
2.1 Analog Output Modules ........................................................................... 7
2.1.1 750-554 [2 AO 4-20 mA] ....................................................................7
2.1.1.1 View................................................................................................ 7
2.1.1.2 Variations........................................................................................ 7
2.1.1.3 Description...................................................................................... 8
2.1.1.4 Display Elements ............................................................................ 9
2.1.1.5 Schematic Diagram......................................................................... 9
2.1.1.6 Technical Data .............................................................................. 10
2.1.1.7 Process Image ...............................................................................11
2.1.1.7.1 Standard Format ....................................................................... 12
2.1.1.7.2 Special Formats ........................................................................ 12

4 • Important Comments
Legal Principles
WAGO-I/O-SYSTEM 750
I/O Modules
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 explanations are
carefully read and abided by.
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 & Co. KG. Non-observance will
entail the right of claims for damages.
WAGO Kontakttechnik GmbH & Co. KG reserves the right to perform
modifications allowed by technical progress. In case of grant of a patent or
legal protection of utility patents all rights are reserved by WAGO
Kontakttechnik GmbH & Co. KG. Products of other manufacturers are always
named without referring to patent rights. The existence of such rights can
therefore not be ruled out.
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 & Co. KG 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
permitted 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 & Co. KG.
Please direct any requirements pertaining to a modified and/or new hardware
or software configuration directly to WAGO Kontakttechnik GmbH & Co.
KG.

Important Comments • 5
Symbols
WAGO-I/O-SYSTEM 750
I/O Modules
1.2 Symbols
Danger
Always abide by this information to protect persons from injury.
Warning
Always abide by 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 optimization.
More information
References on additional literature, manuals, data sheets and internet pages.
1.3 Number Notation
Number Code Example Note
Decimal 100 normal notation
Hexadecimal 0x64 C notation
Binary '100'
'0110.0100'
within inverted commas,
nibble separated with dots

6 • Important Comments
Safety Notes
WAGO-I/O-SYSTEM 750
I/O Modules
1.4 Safety Notes
Warning
Switch off the system prior to working on bus modules!
In the event of deformed contacts, the module in question is to be replaced, as
its functionality can no longer be ensured on a long-term basis.
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 additional measures are to be taken:
- installation of the components into an appropriate enclosure
- handling of the components only with clean tools and materials.
Attention
Cleaning of soiled contacts may only be done with ethyl alcohol and leather
cloths. Thereby, the ESD information is to be regarded.
Do not use any contact spray. The spray may impair the functioning of the
contact area.
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 must only be given via a key or tool to authorized qualified
personnel.
The relevant valid and applicable standards and guidelines concerning the
installation of switch boxes are to be observed.
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. gold contacts.
1.5 Scope
This manual describes the Analog Output Module 750-554
2 AO 4-20 mA of the modular WAGO-I/O-SYSTEM 750.
Handling, assembly and start-up are described in the manual of the Fieldbus
Coupler. Therefore this documentation is valid only in the connection with the
appropriate manual.

750-554 [2 AO 4-20 mA] • 7
View
WAGO-I/O-SYSTEM 750
I/O Modules
2 I/O Modules
2.1 Analog Output Modules
2.1.1 750-554 [2 AO 4-20 mA]
2-Channel Analog Output Module 4-20 mA
2.1.1.1 View
A1 A2
13 14
C
D
B
A
++
0V 0V
SS
750-554
AO 2
Leistungskontakte
Datenkontakte
Funktion AO 2
24V
0V
Funktion AO 1
AO 1
Schirm Schirm
Fig. 2.1.1-1: 2-Channel Analog Output Module 750-554 g055400e
2.1.1.2 Variations
Item-No.: Designation Description
750-554 2 AO (4-20mA) 2-Channel Analog Output Module , 4-20mA
750-554/000-200 2 AO (4-20mA)
with Siemens
(S5-FB 251)
2-Channel Analog Output Module , 4-20mA,
adapted data format for S5-control systems
with the use of function block FB 251

8 • 750-554 [2 AO 4-20 mA]
Description
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.3 Description
The analog output module 750- and its variation create a standardized signal
of 4-20 mA.
The module has two output channels and enables, for example, the direct
wiring of two 2-conductor actuators to the connections AO 1 and 0V or AO 2
and 0V. The signals are transmitted via AO 1 or AO 2.
The channels have a common ground and a shield (screen) (S). The shield
(screen) is directly connected to the DIN rail. A capacitive connection is made
automatically when snapped onto the DIN rail.
The input signal is electrically isolated and will be transmitted with a
resolution of 12 bits.
The operational readiness and the trouble-free internal data bus
communication of the channels are indicated via a green function LED.
Any configuration of the output modules is possible when designing the
fieldbus node. Grouping of module types is not necessary.
The voltage supply is done via the field supply.
The field side supply voltage of 24 V for the output module is derived from an
adjacent I/O module or from a supply module. A capacitive connection of the
supply potential to the adjacent I/O modules is made automatically via the
internal power contacts when snapping the output modules.
Warning
The maximum current of the internal power jumper contacts is 10 A. When
configuring the system it is important not to exceed the maximum/sum
current. However, if such a case should occur, another supply module must be
added.
Note
Use an appropriate supply module (e.g. 750-602) if an electrically isolated
voltage supply is required!
The analog output module 750-554 and its variations can be used with all
couplers/controllers of the WAGO-I/O-SYSTEM 750 (except for the economy
types 750-320, -323, -324 and -327).

750-554 [2 AO 4-20 mA] • 9
Display Elements
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.4 Display Elements
LED Channel Designation State Function
off
No operational readiness or
the internal data bus
communication is interrupted
A
green 1 Function
AO 1
on
Operational readiness and
trouble-free internal data bus
communication
off
No operational readiness or
the internal data bus
communication is interrupted
13 14
C
D
B
A
CA
Fig. 2.1.1-2: Display
elements g055202x
C
green 2 Function
AO 2
on
Operational readiness and
trouble-free internal data bus
communication
2.1.1.5 Schematic Diagram
AO 1 AO 2
24V 24V
0V
Schirm
AO
10nF
270pF 10nF 10nF
0V
Logik
Schirm
Funktion
1
2
3
4
5
6
7
8
750-554
A
D
I
U
Fig. 2.1.1-3: 2-Channel Analog Output Module 750-554 g055401e

10 • 750-554 [2 AO 4-20 mA]
Technical Data
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.6 Technical Data
Module Specific Data
Number of outputs 2
Voltage via power jumper contacts DC 24 V (-25% ... +30%)
Current consumption typ. (internal) 70 mA
Signal current 4 mA... 20 mA
Load impedance < 600 Ω
Linearity ±10 µA
Resolution 12 Bit
Conversion time approx. 2 ms
Measuring error 25°C <±0.1 % of the full scale value
Temperature coefficient <±0.015 % / K of the full scale value
Isolation 500 V (Field/System)
Bit width 2 x 16 bits data
2 x 8 bits control/status (option)
Dimensions (mm) W x H x L 12 x 64* x 100
* from upper edge of 35 DIN rail
Weight ca. 55 g
Standards and Regulations (cf. Chapter 2.2 of the Coupler/Controller Manual)
EMC-Immunity to interference (CE) acc. to EN 50082-2 (96)
EMC-Emission of interference (CE) acc. to EN 50081-1 (93)
EMC-Immunity to interference
(Ship building)
acc. to Germanischer Lloyd (97)
EMC-Emission of interference
(Ship building)
acc. to Germanischer Lloyd (97)

750-554 [2 AO 4-20 mA] • 11
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
Approvals (cf. Chapter 2.2 of the Coupler/Controller Manual)
CULUS (UL508)
ABS (American Bureau of Shipping)
BV (Bureau Veritas)
DNV (Det Norske Veritas) Cl. B
GL (Germanischer Lloyd) Cat. A, B, C, D
KR (Korean Register of Shipping)
LR (Lloyd's Register) Env. 1, 2, 3, 4
NKK (Nippon Kaiji Kyokai)
RINA (Registro Italiano Navale) (only for 750-554)
CULUS (UL1604) Class I Div2 ABCD T4A
KEMA II 3 G EEx nA II T4
Conformity Marking
More Information
Detailed references to the approvals are listed in the document "Overview
Approvals WAGO-I/O-SYSTEM 750", which you can find on the CD ROM
ELECTRONICC Tools and Docs (Item-No.: 0888-0412)
or in the internet under:
www.wago.com ÆDocumentation ÆWAGO-I/O-SYSTEM 750 Æ
System Description
2.1.1.7 Process Image
The analog output module 750-554 and its variations transmit 16-bit data and
8 status bits per channel.
The digitalized output value is transmitted in a data word (16 bits) as output
byte 0 (low) and output byte 1 (high) via the process image of the coupler /
controller.
This value is represented with a 12 bit resolution on bit B3 ... B14.
The three least significant bits (B0 ... B2) are not parsed.
Some fieldbus systems can process the status information using by means of a
status byte.
As the returned status byte of this output module is always zero, it will not be
parsed.

12 • 750-554 [2 AO 4-20 mA]
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.7.1 Standard Format
For the standard module 750-554, the numerical values ranging from 0x0000
to 0x7FFF are scaled on the output current ranging from 4 mA to 20 mA.
Process values of module 750-554
numerical valueOutput current
binary
status-
byte
4 mA - 20 mA output value
hex. dec.
hex.
4 '0000.0000.0000.0000' 0x0000 0 0x00
6 '0001.0000.0000.0000' 0x1000 4096 0x00
8 '0010.0000.0000.0000' 0x2000 8192 0x00
10 '0011.0000.0000.0000' 0x3000 12288 0x00
12 '0100.0000.0000.0000' 0x4000 16384 0x00
14 '0101.0000.0000.0000' 0x5000 20480 0x00
16 '0110.0000.0000.0000' 0x6000 24576 0x00
18 '0111.0000.0000.0000' 0x7000 28672 0x00
20 '0111.1111.1111.1111' 0x7FFF 32767 0x00
2.1.1.7.2 Special Formats
To digitalize the output value, the variation 750-554/000-200 uses a data
format adapted to the S5 control systems using FB 251.
For this version, the numerical values ranging from 0x0000 to 0x4000 are
scaled on the output current ranging from 4 mA to 20 mA.
Process values of module 750-552/000-200
numerical valueOutput current
binary
status-
byte
4 mA - 20 mA output value
hex. dec.
hex.
4 '0000.0000.0000.0000' 0x0000 0 0x00
6 '0000.1000.0000.0000' 0x0800 2048 0x00
8 '0001.0000.0000.0000' 0x1000 4096 0x00
10 '0001.1000.0000.0000' 0x1800 6144 0x00
12 '0010.0000.0000.0000' 0x2000 8192 0x00
14 '0010.1000.0000.0000' 0x2800 10240 0x00
16 '0011.0000.0000.0000' 0x3000 12288 0x00
18 '0011.1000.0000.0000' 0x3800 14336 0x00
20 '0100.0000.0000.0000' 0x4000 16384 0x00

750-554 [2 AO 4-20 mA] • 13
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules

WAGO Kontakttechnik GmbH & Co. KG
Postfach 2880 • D-32385 Minden
Hansastraße 27 • D-32423 Minden
Phone: [phone] – 0
Fax: [phone] – 1 69
E-Mail: [email protected]
Internet: http://www.wago.com