WAGO I/O-SYSTEM 750-478 User manual

Fieldbus Independent
I/O Modules
2 AI DC 0-10 V, Single-Ended
750-478
Manual
Version 1.0.2

ii • General
WAGO-I/O-SYSTEM 750
I/O Modules
Copyright ©2006 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 Digital Output Modules............................................................................7
2.1.1 750-478 [2 AI DC 0-10 V, Single-Ended]...........................................7
2.1.1.1 View................................................................................................7
2.1.1.2 Description......................................................................................7
2.1.1.3 Display Elements ............................................................................8
2.1.1.4 Schematic Diagram.........................................................................9
2.1.1.5 Technical Data ................................................................................9
2.1.1.6 Process Image ...............................................................................11
2.1.1.6.1 Standard Data Format ..............................................................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 ',
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 Input Module 750-478
2 AI DC 0-10 V, Single-Ended 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.

750-478 [2 AI DC 0-10 V, Single-Ended] • 7
View
WAGO-I/O-SYSTEM 750
I/O Modules
2 I/O Modules
2.1 Digital Output Modules
2.1.1 750-478 [2 AI DC 0-10 V, Single-Ended]
2-Channel Analog Input Module (0-10V, Single-Ended)
2.1.1.1 View
E1 E2
13 14
C
D
B
A
++
0V 0V
SS
750-478
AI 2
Power jumper contacts
Data contacts
Function AI 2
24V
0V
Function AI 1
AI 1
Error AI 2
Error AI 1
Shield
(screen)
Shield
(screen)
Fig. 2.1.1-1: 2-Channel Analog Input Module 750-478 g047800e
2.1.1.2 Description
The analog input module receives differential signals of values 0-10 V.
The module has two input channels. The fieldside signals may be received via
the connections AI 1 and 0 V or AI 2 and 0V.
The input channels of a module have a common ground and a shield (screen)
connection (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 of each channel is electrically isolated and will be transmitted
with a resolution of 16 bits (15 bits + sign bit).
The operational readiness and trouble-free internal data bus communication of
the channels are indicated via a green Function LED. Overrange or underflow
of the measuring range is indicated via a red error LED.
Any configuration of the input modules is possible when designing the
fieldbus node. Grouping of module types is not necessary.
The field side supply voltage of 24 V and 0 V for the input module is derived
from adjacent I/O modules or from a supply module.

8 • 750-478 [2 AI DC 0-10 V, Single-Ended]
Display Elements
WAGO-I/O-SYSTEM 750
I/O Modules
The supply voltage for the field side is made automatically through the
individual I/O modules by means of power jumper contacts.
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.
The analog input module 750-478 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).
2.1.1.3 Display Elements
LED Channel Meaning State Function
off
No operational readiness or the
internal data bus communication is
interrupted
A
green
Function
AI 1
on
Operational readiness and trouble-
free internal data bus
communication
off Normal operation
B
red
1
Error
AI 1 on Overrange/underflow of the
admissible measuring range
off
No operational readiness or the
internal data bus communication is
interrupted
C
green
Function
AI 2
on
Operational readiness and trouble-
free internal data bus
communication
off Normal operation
13 14
C
D
B
A
D
C
B
A
Fig. 2.1.1-2: Display
Elements g041802x
D
red
2
Error
AI 2 on Overrange/underflow of the
admissible measuring range

750-478 [2 AI DC 0-10 V, Single-Ended] • 9
Schematic Diagram
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.4 Schematic Diagram
Shield
(screen)
AI 1 AI 2
24V
0V
Al
24V
10nF
270pF
0V
A
DLogic
Function
Error
Shield
(screen)
1
2
3
4
5
6
7
8
750-478
Fig. 2.1.1-3: 2-Channel Analog Input Module 750-478 g047801e
2.1.1.5 Technical Data
Module Specific Data
Number of inputs 2
Voltage supply via system voltage DC /DC
Current consumption typ. (internal) 75 mA
Input voltage max. 24 V
Signal voltage 0 V ... 10 V
Internal resistance typ. 130 kΩ
Resolution 15 bits + sign bit
Conversion time typ.80 ms
Measuring error 25°C <±0.1 % of full scale value
Temperature coefficient <±0.01 % /K of full scale value
Isolation 500 V (Field/System)
Bit width 2 x 16 bits data
2 x 8 bits control/status (optional)
Input filter 50 Hz
Noise rejection
– at sampling frequency
– above sampling frequency
< -100 dB
< -40 dB
Dimensions (mm) W x H x L 12 x 64* x 100
* from upper edge of 35 DIN rail
Weight ca. 55 g

10 • 750-478 [2 AI DC 0-10 V, Single-Ended]
Technical Data
WAGO-I/O-SYSTEM 750
I/O Modules
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)
Approvals (cf. Chapter 2.2 of the Coupler/Controller Manual)
CULUS (UL508)
ABS (American Bureau of Shipping)
BV (Bureau Veritas)
GL (Germanischer Lloyd) Cat. A, B, C, D
DNV (Det Norske Veritas) Cl. B
KR (Korean Register of Shipping)
LR (Lloyd's Register) Env. 1, 2, 3, 4
NKK (Nippon Kaiji Kyokai)
RINA (Registro Italiano Navale)
CULUS (UL1604) Class I Div2 ABCD T4A
DEMKO II 3 GD 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 !Documentation !WAGO-I/O-SYSTEM 750 !
System Description

750-478 [2 AI DC 0-10 V, Single-Ended] • 11
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.6 Process Image
The analog input module 750-478 transmits 16-bit measured values and
8 optional status bits per channel.
The digitalized measured value is transmitted in a data word (16 bits) as input
byte 0 (low) and input byte 1 (high) into the process image of the coupler /
controller.
This value is represented with a 15 bit resolution on bit B0 ... B14 and the sign
bit is represented on bit B15.
Some fieldbus systems can process input channel status information by means
of a status byte.
This status byte can be displayed via the starting tool WAGO-I/O-CHECK 2.
However, processing via the coupler / controller is optional, which means that
accessing or parsing the status information depends on the fieldbus system.
Attention
The representation of the process data of some I/O modules or their variations
in the process image depends on the fieldbus coupler/-controller used. Please
take this information as well as the particular design of the respective
control/status bytes from the section "Fieldbus Specific Design of the Process
Data" included in the description concerning the process image of the
corresponding coupler/controller.

12 • 750-478 [2 AI DC 0-10 V, Single-Ended]
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.6.1 Standard Data Format
For the standard module 750-478, the input voltage ranging from 0 V to 10 V
is scaled on the numerical values ranging from 0x0000 to 0x7FFF.
Process values of module 750-478
numerical valueInput voltage
binary
Status-
byte
LED
Error
0 V - 10 V Measured value
hex. dec.
Hex. AI 1, 2
<-1.00 '0000.0000.0000.0000' 0x0000 0 0x41 on
<-0.50 '0000.0000.0000.0000' 0x0000 0 0x41 off
0.00 '0000.0000.0000.0000' 0x0000 0 0x00 off
1.25 '0001.0000.0000.0000' 0x1000 4096 0x00 off
2.50 '0010.0000.0000.0000' 0x2000 8192 0x00 off
3.75 '0011.0000.0000.0000' 0x3000 12288 0x00 off
5.00 '0100.0000.0000.0000' 0x4000 16384 0x00 off
6.25 '0101.0000.0000.0000' 0x5000 20480 0x00 off
7.50 '0110.0000.0000.0000' 0x6000 24576 0x00 off
8.75 '0111.0000.0000.0000' 0x7000 28672 0x00 off
10.00 '0111.1111.1111.1111' 0x7FFF 32767 0x00 off
>10.50 '0111.1111.1111.1111' 0x7FFF 32767 0x42 off
>11.00 '0111.1111.1111.1111' 0x7FFF 32767 0x42 on

750-478 [2 AI DC 0-10 V, Single-Ended] • 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