WAGO 750 Series User manual

Fieldbus Independent
I/O Modules
2 AI DC ±10 V, Differential
Measurement Input
750-479
Manual
Version 1.0.4

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 Input Modules..............................................................................7
2.1.1 750-479 [2 AI DC ±10 V, Differential Measurement Input]...............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 .............................................................................. 10
2.1.1.6 Process Image ...............................................................................11
2.1.2 750-479/000-001 [2 AI DC ±10 V Differential Measurement
Input/Sync] ........................................................................................13
2.1.2.1 View..............................................................................................13
2.1.2.2 Description....................................................................................13
2.1.2.3 Display Elements ..........................................................................14
2.1.2.4 Schematic Diagram....................................................................... 15
2.1.2.5 Technical Data .............................................................................. 16
2.1.2.6 Process Image ...............................................................................18

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 750-479
2 AI DC ±10 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.

750-479 [2 AI DC ±10 V, Differential Measurement Input] • 7
View
WAGO-I/O-SYSTEM 750
I/O Modules
2 I/O Modules
2.1 Analog Input Modules
2.1.1 750-479 [2 AI DC ±10 V, Differential Measurement Input]
2-Channel Analog Input Module DC ±10 V,
differential measurement input
2.1.1.1 View
+E1 +E2
13 14
C
D
B
A
-E1 -E2
SS
750-479
+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)
Fig. 2.1.1-1: View g047900e
2.1.1.2 Description
This analog input module receives signals with standardized values of ±10 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(13 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 voltage supply is done via system voltage.

8 • 750-479 [2 AI DC ±10 V, Differential Measurement Input]
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 750-479 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 Designation 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

750-479 [2 AI DC ±10 V, Differential Measurement Input] • 9
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
750-479
Fig. 2.1.1-3: Schematic diagram g0479001e

10 • 750-479 [2 AI DC ±10 V, Differential Measurement Input]
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
Voltage supply via system voltage DC/DC
Current consumption typ. (internal) 80 mA
Signal voltage ±10 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 13 bit + sign bit
Value of a LSB
(Least Significant Bit)
1.2 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 230 V
Voltage resistance DC 500V (channel/channel or channel/system)
Bit width 2 x 16 bits data
2 x 8 bits control/status (option)
DimensionsW x H* x L
* from upper edge of 35 DIN rail
12 mm x 64 mm x 100 mm
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)