WAGO 750-461 User manual

Fieldbus Independent
I/O Modules
Analog Input Modules for RTD's
750-461, (/xxx-xxx)
Manual
Version 1.1.2

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 Analog Input Modules..............................................................................7
2.1.1 Overview Analog Input Modules for RTD's 750-461, (/xxx-xxx)...... 7
2.1.2 750-461, (/xxx-xxx) [2 AI Pt100/ RTD] .............................................8
2.1.2.1 View................................................................................................8
2.1.2.2 Variations........................................................................................8
2.1.2.3 Description......................................................................................9
2.1.2.4 Display Elements ..........................................................................10
2.1.2.5 Schematic Diagram.......................................................................11
2.1.2.6 Technical Data ..............................................................................12
2.1.2.7 Process Image ...............................................................................13
2.1.2.7.1 I/O Modules for Pt Resistance Sensors......................................... 14
2.1.2.7.1.1 Pt 100 .......................................................................................15
2.1.2.7.1.2 Pt 1000 .....................................................................................15
2.1.2.7.1.3 Pt 100 with Status Information for S5-FB250 in Data Word...16
2.1.2.7.2 I/O Modules for Ni Resistance Sensors........................................17
2.1.2.7.2.1 Ni 100.......................................................................................17
2.1.2.7.2.2 Ni 1000.....................................................................................18
2.1.2.7.3 I/O Modules for Resistance Measuring ........................................19
2.1.2.8 Adjustable 750-461/003-000 Variation ........................................20
2.1.3 750-461/020-000 [2 AI NTC 20kOhm].............................................22
2.1.3.1 View..............................................................................................22
2.1.3.2 Description....................................................................................23
2.1.3.3 Display Elements ..........................................................................24
2.1.3.4 Schematic Diagram.......................................................................24
2.1.3.5 Technical Data ..............................................................................25
2.1.3.6 Process Image ...............................................................................26

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.

Symbols • 5
Intended Use
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 Modules 750-461, (/xxx-xxx)
Analog Input Modules for RTD's 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.

Analog Input Modules • 7
Overview Analog Input Modules for RTD's 750-461, (/xxx-xxx)
WAGO-I/O-SYSTEM 750
I/O Modules
2 I/O Modules
2.1 Analog Input Modules
2.1.1 Overview Analog Input Modules for RTD's 750-461, (/xxx-xxx)
I/O Module 750-461 750-461/
000-002
750-461/
000-003
750-461/
000-004
750-461/
000-005
Function PT100/
RTD
Resistance
Measuring
10R-1k2
PT1000/
RTD
Ni 100/
RTD
Ni 1000/
RTD
Channels 2 2 2 2 2
Measuring
range
-200 °C ...
+850 °C
10 Ω...
1,2 kΩ
-200 °C ...
+850 °C
-60 °C ...
+250 °C
-60 °C ...
+250 °C
Counter depth 2 x 16 bits
Data
2 x 8 bits
Control/
Status
(option)
2 x 16 bits
Data
2 x 8 bits
Control/
Status
(option)
2 x 16 bits
Data
2 x 8 bits
Control/
Status
(option)
2 x 16 bits
Data
2 x 8 bits
Control/
Status
(option)
2 x 16 bits
Data
2 x 8 bits
Control/
Status
(option)
I/O Module 750-461/
000-006
750-461/
000-007
750-461/
000-200
750-461/
003-000
750-461/
020-000
Function PT100/
RTD/
high
precision
Resistance
Measuring
10R-5k0
PT100/
RTD/
with
status
informatio
ns
PT100/
RTD/
adjustable
NTC
20kOhm
Channels 2 2 2 2 2
Measuring
range
-200 °C ...
+850 °C
10 Ω...
5,0 kΩ
-200 °C ...
+850 °C,
-200 °C ...
+850 °C
-30 °C ...
+130 °C
Counter depth 2 x 16 bits
Data
2 x 8 bits
Control/
Status
(option)
2 x 16 bits
Data
2 x 8 bits
Control/
Status
(option)
2 x 16 bits
Data
2 x 8 bits
Control/
Status
(option)
2 x 16
bits Data
2 x 8 bits
Control/
Status
(option)
2 x 16 bits
Data
2 x 8 bits
Control/
Status
(option)

8 • 750-461, (/xxx-xxx) [2 AI Pt100/ RTD]
View
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.2 750-461, (/xxx-xxx) [2 AI Pt100/ RTD]
2-Channel Analog Input Module for RTDs
2- or 3-wire connection
2.1.2.1 View
+R1 +R2
13 14
C
D
B
A
RL1 RL2
SS
-R1 -R2
750-461
+R 2
Data contacts
Function AI 2
RL 2
Function AI 1
+R 1
Error AI 2
Error AI 1
RL 1
Shield
(screen)
Shield
(screen)
-R 2
-R 1
2-conductor 3-conductor
Fig. 2.1.2-1: 2-Channel Analog Input Module 750-461 g046100e
2.1.2.2 Variations
Item-No. Designation Description
Pt resistance sensors
750-461 2 AI PT100/RTD 2-Channel Analog Input Module, Pt 100
Measuring range: -200 °C ... +850 °C
750-461/000-003 2 AI PT1000/RTD 2-Channel Analog Input Module, Pt 1000
Measuring range: -200 °C ... +850 °C
750-461/000-006 2 AI PT100/RTD/
high precision
2-Channel Analog Input Module, Pt 100
Measuring range: -200 °C ... +850 °C
750-461/000-200 2 AI PT100/RTD/
With status information
2-Channel Analog Input Module, Pt 100
Measuring range: -200 °C ... +850 °C,
With status information for S5-FB250
Ni resistance sensors
750-461/000-004 2 AI Ni 100/RTD 2-Channel Analog Input Module, Ni 100
Measuring range: -60 °C ... +250 °C
750-461/000-005 2 AI Ni 1000/RTD 2-Channel Analog Input Module, Ni 1000
Measuring range: -60 °C ... +250 °C

750-461, (/xxx-xxx) [2 AI Pt100/ RTD] • 9
Description
WAGO-I/O-SYSTEM 750
I/O Modules
Item-No. Designation Description
Resistance measuring
750-461/000-002 2 AI Resistance
Measuring, 10R-1k2
2-Channel Analog Input Module,
Resistance measuring,
Measuring range: 10 Ω... 1,2 kΩ
750-461/000-007 2 AI Resistance
Measuring, 10R-5k0
2-Channel Analog Input Module,
Resistance measuring,
Measuring range: 10 Ω... 5,0 kΩ
Operating mode configurable with WAGO-I/O-CHECK
750-461/003-000 2 AI PT100/RTD/
Adjustable
2-Channel Analog Input Module,
Adjustable; Factory preset: Pt 100
Measuring range: -200 °C ... +850 °C
2.1.2.3 Description
The 750-461 analog input module and its 750-461/xxx-xxx variations allow
Pt or Ni Resistive Temperature Devices, RTDs, to be measured in the field.
It can also be used to measure resistances in the field.
Depending on the operating mode, the resistance value is converted to a
temperature or directly sent out by the module. A microprocessor within the
module is used for converting and linearizing the measured resistance value
into a numeric value proportional to the temperature of the selected resistance
sensor.
The operating mode of the 750-461/003-000 variation can be set by using the
WAGO-I/O-CHECK 2 start-up and diagnostic tool (Item No.: 759-302). The
default setting is Pt 100. After setting the parameters, the module behaves like
the version with the selected operating mode.
The operating mode of the 750-461 basic module described in this manual is
for a Pt 100 resistance sensor.
The analog input module is a 2- to 3-conductor device and has 2 input
channels. Two devices may be directly connected to the module.
For example, two 3-wire sensors can be connected either to +R1, RL1 and –
R1 or to +R2, RL2 and –R2.
For the connection of 2-wire sensors, putting of a bridge is necessary between
+R1 and RL1 or +R2 and RL2.
The shield (screen) is directly connected to the DIN rail. A capacitive
connection is made automatically when snapped onto the DIN rail.
An optocoupler is used for electrical isolation between the bus and the field
side.
The operational readiness and trouble-free internal data bus communication of
the channels are indicated via a green function LED. A broken wire, short-
circuit or overrange are indicated by a red error LED per channel.

10 • 750-461, (/xxx-xxx) [2 AI Pt100/ RTD]
Display Elements
WAGO-I/O-SYSTEM 750
I/O Modules
After the error has been corrected, the module needs up to 4 seconds to output
a correct measured value, the module 750-461/000-006 needs up to 12
seconds.
Any configuration of the input modules is possible when designing the
fieldbus node. Grouping of module types is not necessary.
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 750-461 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).
2.1.2.4 Display Elements
LED Channel State Function
off No operational readiness or the internal data bus
communication is interrupted
A
green on Operational readiness and trouble-free internal data
bus communication
off Normal operation
750-461,
750-461/000-003,
-004, -005, -006
Overrange/underflow of the
admissible measuring range,
broken wire
750-461/000-200 Overrange of the admissible
measuring range, broken wire
750-461/000-002 Overrange/underflow of the
admissible measuring range
B
red
1
on
750-461/000-007 Overrange of the admissible
measuring range
off No operational readiness or the internal data bus
communication is interrupted
C
green on Operational readiness and trouble-free internal data
bus communication
off Normal operation
750-461,
750-461/000-003,
-004, -005, -006
Overrange/underflow of the
admissible measuring range,
broken wire
750-461/000-200 Overrange of the admissible
measuring range, broken wire
750-461/000-002 Overrange/underflow of the
admissible measuring range
13 14
C
D
B
A
D
B
C
A
Fig. 2.1.2-2:
Display Elements
g045202x
D
red
2
on
750-461/000-007 Overrange of the admissible
measuring range