WAGO I/O System 750 750-483 User manual

Fieldbus Independent
I/O Modules
2 AI DC 0-30 V, Differential
Measurement Input
750-483
Manual
Version 1.0.4

ii • General
WAGO-I/O-SYSTEM 750
I/O Modules
Copyright 2008 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 Notes ..........................................................................................4
1.1 Legal Bases............................................................................................... 4
1.1.1 Copyright ............................................................................................. 4
1.1.2 Personnel Qualifications...................................................................... 4
1.1.3 Use of the 750 Series in Compliance with Underlying Provisions ..... 5
1.1.4 Technical Condition of Specified Devices .......................................... 5
1.2 Standards and Guidelines for Operating the 750 Series........................... 6
1.3 Symbols .................................................................................................... 7
1.4 Safety Information.................................................................................... 8
1.5 Font Conventions ..................................................................................... 9
1.6 Number Notation...................................................................................... 9
1.7 Scope ........................................................................................................ 9
2I/O Modules ............................................................................................... 10
2.1 Digital Output Modules.......................................................................... 10
2.1.1 750-483 [2 AI DC 0-30 V, Differential Measurement Input] ........... 10
2.1.1.1 View.............................................................................................. 10
2.1.1.2 Description.................................................................................... 10
2.1.1.3 Display Elements .......................................................................... 11
2.1.1.4 Schematic Diagram....................................................................... 12
2.1.1.5 Technical Data .............................................................................. 13
2.1.1.6 Process Image ...............................................................................14
2.1.1.6.1 Standard Format ....................................................................... 15

4 • Important Notes
Legal Bases
WAGO-I/O-SYSTEM 750
I/O Modules
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, know-
ledge and expertise to meet the required specifications of this work and to identify any po-
tential hazardous situation in the above listed fields of activity.

Important Notes • 5
Legal Bases
WAGO-I/O-SYSTEM 750
I/O Modules
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 non-
compliant usage of components.
Please send your request for modified and new hardware or software
configurations directly to WAGO Kontakttechnik GmbH & Co. KG.

6 • Important Notes
Standards and Guidelines for Operating the 750 Series
WAGO-I/O-SYSTEM 750
I/O Modules
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" Æ"System
Description" Æ"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.

Important Notes • 7
Symbols
WAGO-I/O-SYSTEM 750
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 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.

8 • Important Notes
Safety Information
WAGO-I/O-SYSTEM 750
I/O Modules
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.

Important Notes • 9
Font Conventions
WAGO-I/O-SYSTEM 750
I/O Modules
Warning
For components with ETHERNET/RJ-45 connectors:
Only for use in LAN, not for connection to telecommunication circuits.
1.5 Font Conventions
italic Names of paths and data files are marked in italic-type.
e.g.: C:\Programs\WAGO-IO-CHECK
italic Menu items are marked in italic-type, bold letters.
e.g.: Save
\ A backslash between two names characterizes the selection of a
menu point from a menu.
e.g.: File \ New
END Pushbuttons are marked as bold with small capitals
e.g.: ENTER
< > 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 Note
Decimal 100 Normal notation
Hexadecimal 0x64 C notation
Binary '100'
'0110.0100'
In quotation marks,
nibble separated with dots (.)
1.7 Scope
This manual describes the Analog Input Module 750-483
2 AI DC 0-30 V, Differential Measurement Input 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.

10 • 750-483 [2 AI DC 0-30 V, Differential Measurement Input]
View
WAGO-I/O-SYSTEM 750
I/O Modules
2 I/O Modules
2.1 Digital Output Modules
2.1.1 750-483 [2 AI DC 0-30 V, Differential Measurement Input]
2-Channel Analog Input Module DC 0-30 V,
differential measurement input
2.1.1.1 View
+E1 +E2
13 14
C
D
B
A
-E1 -E2
SS
+AI 2
Data contacts
Function AI 2
-AI 2
Function AI 1
+AI 1
-AI 1
Error AI 2
Error AI 1
Shield
(screen)
Shield
(screen)
750-483
Fig. 2.1.1-1: 2 View g048300e
2.1.1.2 Description
This analog input module receives signals with standardized values of 0-30 V.
The module has two differential input channels and can receive differential
signals via the connections +AI 1 and -AI 1 or +AI 2 and -AI 2.
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 14 bits.
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 voltage supply is done via system voltage.

750-483 [2 AI DC 0-30 V, Differential Measurement Input] • 11
Display Elements
WAGO-I/O-SYSTEM 750
I/O Modules
Attention
This module has no power contacts. For field supply to downstream I/O
modules, a supply module will be needed.
The analog input module 750-483 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 Designatio
n
State Function
off
No operational readiness or the
internal data bus communication is
interrupted
A Function
AI 1
green
Operational readiness and trouble-
free internal data bus
communication
off Normal operation
B
1
Error
AI 1 red Overrange/underflow of the
admissible measuring range
off
No operational readiness or the
internal data bus communication is
interrupted
C Function
AI 2
green
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
2
Error
AI 2 red Overrange/underflow of the
admissible measuring range

12 • 750-483 [2 AI DC 0-30 V, Differential Measurement Input]
Schematic Diagram
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.4 Schematic Diagram
Shield
(screen)
+AI 1 +AI 2
-AI 2
-AI 1
+Al
-AI
270pF 270pF
A
DLogic
Function
Error
Shield
(screen)
1
2
3
4
5
6
7
8
750-483
Fig. 2.1.1-3: Schematic Diagram g0483001e

750-483 [2 AI DC 0-30 V, Differential Measurement Input] • 13
Technical Data
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.1.5 Technical Data
Module Specific Data
Number of outputs 2, electrically isolated from each other
Measured-value acquisition time synchronous (both inputs)
Voltage supply via system voltage DC /DC
Current consumption typ. (internal) 80 mA
Signal voltage 0 V... 30 V
Overrange/
measuring range underflow
status byte and LED
Input filter low pass first order, fG = 5 kHz
Internal resistance 1 MΩ
Resolution of the A/D converter 14 Bit
Monotonicity without missing codes yes
Resolution of the measured value 14 Bit + sign bit
Value of a LSB (Bit 1)
(Least Significant Bit)
1.8 mV
Measuring error 25 °C ≤± 0.05% of the full scale value
Temperature coefficient < ± 0.01%/K of the full scale value
Measuring error ≤0.4 % over whole temperature range
≤0.1 % of upper range value (non-linearity)
Crosstalk attenuation ≥80 db
Sampling time of repetition 1 ms
Sampling delay (module) 1 ms
Sampling delay (channel/channel) ≤1 µs
Sampling duration ≤5 µs
Method of conversion SAR (Successive Approximation Register)
Operating mode continuously sampling (preset)
Protection RC circuit
Admissible continuous overload DC ± 60 V
Voltage resistance DC 500V (Channel/Channel or Channel/System)
Bit width 2 x 16 bits data
2 x 8 bits control/status (option)
Dimensions W x H* x L
* from upper edge of 35 DIN rail
12 mm x 64 mm x 100 m
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)

14 • 750-483 [2 AI DC 0-30 V, Differential Measurement Input]
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) (applied for)
DNV (Det Norske Veritas) Cl. B
GL (Germanischer Lloyd) Cat. A, B, C, D (EMC 1)
KR (Korean Register of Shipping)
LR (Lloyd's Register) (applied for) Env. 1, 2, 3, 4
NKK (Nippon Kaiji Kyokai)
PRS (Polski Rejestr Statków)
RINA (Registro Italiano Navale)
CULUS (ANSI/ISA 12.12.01) Class I Div2 ABCD T4
DEMKO / IEC I M2 / II 3 G/D Ex nA IIC 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
2.1.1.6 Process Image
The analog input module 750-483 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 14 bit resolution on bit B1 ... B14.
The states of the two first least significant bit B0 are not defined in the range
from 0 V to 30 V.
Therefore, they are represented with a ‘X‘ in the table.
The hexadecimal and decimal measured values are listed in the table assuming

750-483 [2 AI DC 0-30 V, Differential Measurement Input] • 15
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
that the first two bits have the state '0'. When both bits have the state '1', the
value 1 is added to the decimal measured value indicated in the table.
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.
2.1.1.6.1 Standard Format
For the standard module 750-483, the input voltage ranging from 0 V to
30 V is scaled on the numerical values ranging from 0x0000 to 0x7FFF.
Process values of module 750-483
Input voltage numerical value Status-
byte
LED
Error
0 V - 30 V binary hex. dec. hex. AI 1, 2
<-1 '0000.0000.0000.0000' 0x0000 0 0x41 on
<0 '0000.0000.0000.0000' 0x0000 0 0x00 off
0 '0000.0000.0000.000X' 0x0000 0 0x00 off
5 '0001.0101.0101.010X' 0x1554 5460 0x00 off
10 '0010.1010.1010.101X' 0x2AAA 10920 0x00 off
15 '0100.0000.0000.000X' 0x4000 16384 0x00 off
20 '0101.0101.0101.010X' 0x5554 21844 0x00 off
25 '0110.1010.1010.101X' 0x6AAA 27304 0x00 off
30 '0111.1111.1111.1111' 0x7FFF 32767 0x00 off
>30 '0111.1111.1111.1111' 0x7FFF 32767 0x00 off
>31 '0111.1111.1111.1111' 0x7FFF 32767 0x42 on

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