WAGO 753-668/000-004 User manual

Manual
WAGO-I/O-SYSTEM 750
753-668/000-004
4FAI 0/4-20 mA Diff PROFIsafe
Fail-safe 4-channel analog input; 0/4...20 mA;
Differential inputs; PROFIsafe
Version 1.0.0, valid from HW/SW Version 01/01

2 WAGO-I/O-SYSTEM 750
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Manual
Version 1.0.0, valid from HW/SW Version 01/01
© 2019 WAGO Kontakttechnik GmbH & Co. KG
All rights reserved.
WAGO Kontakttechnik GmbH & Co. KG
Hansastraße 27
D-32423 Minden
Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]
Web: www.wago.com
Technical Support
Phone: [phone]
Fax: [phone]
E-Mail: suppo[email protected]
Every conceivable measure has been taken to ensure the accuracy and
completeness of this documentation. However, as errors can never be fully
excluded, we always appreciate any information or suggestions for improving the
documentation.
E-Mail: documenta[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 protected by trademark or patent.
WAGO is a registered trademark of WAGO Verwaltungsgesellschaft mbH.

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Table of Contents
1Notes about this Documentation.............................................................8
1.1 Validity of this Documentation.................................................................8
1.2 Copyright................................................................................................9
1.3 Symbols ...............................................................................................10
1.4 Number Notation ..................................................................................12
1.5 Font Conventions .................................................................................12
2Important Notes ......................................................................................13
2.1 Legal Bases..........................................................................................13
2.1.1 Subject to Changes..........................................................................13
2.1.2 Personnel Qualifications ..................................................................13
2.1.3 Use of the 750 Series in Compliance with
Underlying Provisions ......................................................................13
2.1.4 Technical Condition of Specified Devices.........................................14
2.2 System Requirements for the WAGO Parameterization Tool................15
2.2.1 PC Hardware ...................................................................................15
2.2.2 PC Software.....................................................................................15
2.3 Safety Advice (Precautions) .................................................................16
3Device Description..................................................................................19
3.1 View .....................................................................................................21
3.2 Connectors...........................................................................................22
3.2.1 Data Contacts/Local Bus..................................................................22
3.2.2 Power Jumper Contacts/Field Supply ..............................................23
3.2.3 CAGE CLAMP®Connectors.............................................................25
3.3 Display Elements..................................................................................27
3.4 Operating Elements..............................................................................29
3.5 Schematic Diagrams ............................................................................30
3.6 Technical Data .....................................................................................31
3.6.1 Device Data.....................................................................................31
3.6.2 Power Supply...................................................................................31
3.6.3 Communication................................................................................32
3.6.4 Analog Inputs...................................................................................32
3.6.5 Filter Characteristics ........................................................................35
3.6.6 Sensor Supply Outputs....................................................................35
3.6.7 Safety Parameters...........................................................................36
3.6.7.1 Two-Channel Safety Application..................................................36
3.6.7.2 Single-Channel Safety Application...............................................37
3.6.8 Connection Type..............................................................................38
3.6.9 Climatic Environmental Conditions...................................................38
3.6.10 Response Times..............................................................................39
3.6.10.1 Safety Response Time of Analog Inputs for
Single-Channel Applications........................................................39
3.6.10.1.1 Safety Response Time of Analog Inputs
in an Error-Free Case.............................................................40
3.6.10.1.2 Safety Response Time of Analog Inputs
in Case of Error.......................................................................41

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3.6.10.2 Safety Response Time of Analog Inputs for
Two-Channel Applications without
Discrepancy Monitoring...............................................................41
3.6.10.3 Safety Response Time of Analog Inputs for
Two-Channel Applications with
Discrepancy Monitoring...............................................................42
3.6.10.3.1 Accuracy of Discrepancy Monitoring.......................................43
3.6.10.3.1.1 Secure Detection of a Discrepancy Timeout.......................44
3.6.10.3.1.2 Secure Non-Detection of a Discrepancy Timeout...............45
3.7 Approvals .............................................................................................46
3.8 Standards and Guidelines ....................................................................47
3.8.1 Transport and Storage Conditions....................................................48
4Functions.................................................................................................49
4.1 Analog Value Data Format ...................................................................49
4.2 Sampling Frequency.............................................................................50
4.3 Acknowledging Errors...........................................................................51
4.4 Module- or Channel-Granular Passivation in
PROFIsafe Mode V2.4..........................................................................53
4.5 Single- or Two-Channel Use of Analog Inputs......................................54
4.6 Tolerance Window for Two-Channel Evaluation ...................................55
4.7 Setting the Relative or Absolute Tolerance...........................................58
4.8 Discrepancy Time.................................................................................59
4.9 Definition of the Unit Value...................................................................60
4.10 Setting the Measurement Range..........................................................61
4.11 Setting the Substitute Values................................................................62
4.12 Moving Average Input Measurement Values ........................................63
4.13 Wire Break Detection............................................................................64
4.14 Enabling/Disabling Channels................................................................65
5Process Image.........................................................................................66
5.1 PROFIsafe Mode V2.4..........................................................................67
5.2 PROFIsafe Mode V2.6..........................................................................68
5.3 Input Process Value .............................................................................68
5.4 Channel Status Byte.............................................................................69
5.5 WAGO Status Byte...............................................................................69
5.6 PROFIsafe Status Byte.........................................................................69
5.7 WAGO Control Byte .............................................................................69
5.8 PROFIsafe Control Byte.......................................................................69
5.9 Analog Value Data Format of Input Process Values.............................70
5.9.1 Format Siemens S7 with Fixed Substitute Values............................70
5.9.1.1 Measurement Range 0 …20 mA ................................................70
5.9.1.2 Measurement Range 4 …20 mA with
Wire Break Detection Enabled.....................................................71
5.9.1.3 Measurement Range 4 …20 mA with
Wire Break Detection Disabled....................................................71
5.9.2 Format Siemens S7 with Parameterizable
Substitute Values.............................................................................72
5.9.2.1 Measurement Range 0 …20 mA ................................................72
5.9.2.2 Measurement Range 4 …20 mA with
Wire Break Detection Enabled.....................................................72

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5.9.2.3 Measurement Range 4 …20 mA with
Wire Break Detection Disabled....................................................73
5.9.3 RIOforPA Representation ................................................................73
5.9.3.1 Measurement Range 0 …20 mA ................................................74
5.9.3.2 Measurement Range 4 …20 mA ................................................74
6Mounting..................................................................................................75
6.1 Mounting Sequence..............................................................................75
6.2 Inserting and Removing Devices ..........................................................76
6.2.1 Inserting the I/O Module...................................................................76
6.2.2 Removing the I/O Module ................................................................77
6.3 I/O Modules with Pluggable Wiring Level (Series 753) .........................78
6.3.1 Coding .............................................................................................79
6.3.2 Plug Removal ..................................................................................81
7Connect Devices.....................................................................................82
7.1 Connecting a Conductor to the CAGE CLAMP®...................................82
7.2 Power Supply Concept.........................................................................83
7.2.1 Disturbances in the Supply Voltage..................................................85
7.2.2 Using 230 VAC I/O Modules ............................................................86
7.2.2.1 230 VAC Modules are Used in Another
Fieldbus Node that Contains no F I/O Modules ...........................86
7.2.2.2 230 VAC I/O Modules and F I/O Modules are
Used Together in one Fieldbus Node..........................................86
7.3 Connection Examples...........................................................................87
7.3.1 Internal Sensor Supply, Single- or Two-Channel, 2-Wire .................88
7.3.2 Internal Sensor Supply, Single- or Two-Channel, 3-Wire .................88
7.3.3 Internal Sensor Supply, Single- or Two-Channel, 4-Wire .................89
7.3.4 External Sensor Supply, Single- or Two-Channel, 4-Wire................90
8Commissioning.......................................................................................91
8.1 Commissioning and Maintenance Instructions......................................91
8.1.1 Proof Test Interval/Usage Duration..................................................91
8.1.2 Adding or Replacing Components....................................................92
8.2 Setting the PROFIsafe Address............................................................92
8.2.1 Setting the PROFIsafe Address using the Coding Switch ................93
8.2.2 Setting the PROFIsafe Address using the
WAGO Parameterization Tool..........................................................93
8.3 Parameterization of the F I/O Module with the
WAGO Parameterization Tool ..............................................................94
8.3.1 ONLINE Mode..................................................................................95
8.3.1.1 Reading iParameters from Module or Parameter File..................95
8.3.1.2 Writing iParameters to Module or Parameter File ........................96
8.3.2 OFFLINE Mode................................................................................97
8.3.2.1 Reading from a Parameter File....................................................97
8.3.2.2 Writing to a Parameter File..........................................................97
8.3.3 Other Services for OFFLINE and ONLINE Mode .............................98
8.3.3.1 Comparing iParameter Sets ........................................................98
8.3.3.2 Change Password.......................................................................99
8.3.4 Description of the Call Options.........................................................99

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8.3.4.1 Indirect Start via WAGO-I/O-CHECK from the
Operating System......................................................................100
8.3.4.2 Direct Start from the Operating System.....................................100
8.3.4.3 Indirect Start via WAGO-I/O-CHECK from
the Configuration Program
(Device Level TCI Conformance Class 2)..................................100
8.3.4.4 Indirect Start via WAGO-I/O-CHECK from
the Configuration Program
(Module Level TCI Conformance Class 2).................................100
8.3.4.5 Direct Start from the Configuration Program
(Device Level TCI Conformance Class 3)..................................101
8.3.4.6 Direct Start from the Configuration Program
(Module Level TCI Conformance Class 3).................................101
8.3.4.7 Direct Start from the Configuration Program
(Device Level TCI Conformance Class 3 OFFLINE)..................101
8.3.4.8 Direct Start from the Configuration Program
(Module Level TCI Conformance Class 3 OFFLINE ..................101
8.3.5 Setting Parameters........................................................................102
8.4 Programming the Safe PLC................................................................104
8.4.1 F I/O Module with PROFIsafe Mode V2.4 or V2.6..........................105
8.4.2 F I/O Module with iPar Server........................................................106
8.4.3 F I/O Module with iPar Server from WAGO....................................106
8.4.4 F I/O Module without iPar Server ...................................................107
9Diagnostics............................................................................................108
9.1 Error Detection...................................................................................108
9.2 Errors and Error Types.......................................................................109
9.3 Behavior in Case of Error ...................................................................111
9.3.1 Channel Errors...............................................................................112
9.3.2 Channel Pair Errors .......................................................................113
9.3.3 Module Errors ................................................................................113
9.3.4 Configuration/Communication Errors .............................................113
9.4 Acknowledging Errors.........................................................................114
9.4.1 Error Acknowledgement Internal to the Module..............................114
9.4.2 Error Acknowledgement External to the Module in
PROFIsafe Mode V2.4...................................................................114
9.4.3 Error Acknowledgment External to the Module in
PROFIsafe Mode V2.6...................................................................116
9.4.4 Signal Course diagramms..............................................................118
9.5 Error Diagnostics................................................................................120
9.6 Firmware Update................................................................................131
10 Service...................................................................................................132
10.1 Replacing the F I/O Module................................................................132
10.1.1 Procedure......................................................................................132
10.1.2 F I/O Module with iPar Server Functionality ...................................133
10.1.2.1 PROFIsafe Address Set Using the Coding Switch.....................133
10.1.2.2 PROFIsafe Address Set Using the
Parameterization Tool ...............................................................133
10.1.3 F I/O Module without iPar Server Functionality...............................133
10.1.3.1 PROFIsafe Address Set Using the Coding Switch.....................133

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10.1.3.2 PROFIsafe Address Set Using the
Parameterization Tool ...............................................................134
11 Use in Hazardous Environments .........................................................135
11.1 Marking Configuration Examples........................................................136
11.1.1 Marking for Europe According to ATEX and IECEx........................136
11.1.2 Marking for the United States of America (NEC)
and Canada (CEC) ........................................................................140
11.2 Installation Regulations.......................................................................143
11.2.1 Special Notes including Explosion Protection.................................143
11.2.2 Special Notes Regarding ANSI/ISA Ex ..........................................145
12 Appendix ...............................................................................................146
12.1 PROFIsafe..........................................................................................146
12.2 Individual Parameters (iParameters)...................................................148
12.3 Overview of PROFIsafe F Parameters................................................149
12.4 PROFIsafe Certificates.......................................................................153
13 Glossary ................................................................................................154
List of Figures ................................................................................................163
List of Tables..................................................................................................165

8 Notes about this Documentation WAGO-I/O-SYSTEM 750
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1 Notes about this Documentation
Always retain this documentation!
This documentation is part of the product. Therefore, retain the documentation
during the entire service life of the product. Pass on the documentation to any
subsequent user. In addition, ensure that any supplement to this documentation
is included, if necessary.
Technical Terms in this Documentation
The technical terms used in this documentation are available in the glossary at
the end of the manual.
1.1 Validity of this Documentation
This documentation applies to: “4FAI 0/4-20 mA Diff PROFIsafe”
(753-668/000-004).
This documentation is only applicable from HW/SW Version 01/01.
The I/O module 753-668/000-004 shall only be installed and operated according
to the instructions in this manual and in the manual for the used fieldbus coupler
or controller.
Consider power layout of the WAGO-I/O-SYSTEM 750!
In addition to these operating instructions, you will also need the manual for the
used fieldbus coupler or controller, which can be downloaded at www.wago.com.
There, you can obtain important information including information on electrical
isolation, system power and supply specifications.
Observe the information on the power supply concept!
Detailed information and examples for supplying F I/O modules is available in the
section “Connect Devices” > …> “Power Supply Concept”.

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1.2 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.

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1.3 Symbols
Personal Injury!
Indicates a high-risk, imminently hazardous situation which, if not avoided, will
result in death or serious injury.
Personal Injury Caused by Electric Current!
Indicates a high-risk, imminently hazardous situation which, if not avoided, will
result in death or serious injury.
Personal Injury!
Indicates a moderate-risk, potentially hazardous situation which, if not avoided,
could result in death or serious injury.
Personal Injury!
Indicates a low-risk, potentially hazardous situation which, if not avoided, may
result in minor or moderate injury.
Damage to Property!
Indicates a potentially hazardous situation which, if not avoided, may result in
damage to property.
Damage to Property Caused by Electrostatic Discharge (ESD)!
Indicates a potentially hazardous situation which, if not avoided, may result in
damage to property.
Important Note!
Indicates a potential malfunction which, if not avoided, however, will not result in
damage to property.

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Additional Information:
Refers to additional information which is not an integral part of this
documentation (e.g., the Internet).

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1.4 Number Notation
Table 1: 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 (.)
1.5 Font Conventions
Table 2: Font Conventions
Font Type
Indicates
italic
Names of paths and data files are marked in italic-type.
e.g.: C:\Program Files\WAGO Software
Menu
Menu items are marked in bold letters.
e.g.: Save
>
A greater-than sign between two names means the selection of a
menu item from a menu.
e.g.: File > New
Input
Designation of input or optional fields are marked in bold letters,
e.g.: Start of measurement range
“Value”
Input or selective values are marked in inverted commas.
e.g.: Enter the value “4 mA” under Start of measurement range.
[Button]
Pushbuttons in dialog boxes are marked with bold letters in square
brackets.
e.g.: [Input]
[Key]
Keys are marked with bold letters in square brackets.
e.g.: [F5]

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2 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.
2.1 Legal Bases
2.1.1 Subject to Changes
WAGO Kontakttechnik GmbH & Co. KG reserves the right to provide for any
alterations or modifications. 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.
2.1.2 Personnel Qualifications
All sequences implemented on WAGO-I/O-SYSTEM 750 devices may only be
carried out by electrical specialists with sufficient knowledge in automation. The
specialists must be familiar with the current norms and guidelines for the devices
and automated environments.
All changes to the coupler or controller should always be carried out by qualified
personnel with sufficient skills in PLC programming.
Only personnel trained in safety-related procedures may perform the work!
Adding, exchanging and commissioning F I/O modules may only be carried out
by personnel trained in safety-related procedures!
2.1.3 Use of the 750 Series in Compliance with Underlying
Provisions
Fieldbus 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 actuators or higher-level control systems. Using controllers, the signals can
also be (pre-) processed.
The devices 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 devices in wet and dusty
environments is prohibited.

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Operating the WAGO-I/O-SYSTEM 750 devices in home applications without
further measures is only permitted if they meet the emission limits (emissions of
interference) according to EN 61000-6-3. You will find the relevant information in
the section “Device Description” > “Standards and Guidelines” in the manual for
the used fieldbus coupler or controller.
Appropriate housing (per 2014/34/EU) is required when operating the
WAGO-I/O-SYSTEM 750 in hazardous environments. Please note that a
prototype test certificate must be obtained that confirms the correct installation of
the system in a housing or switch cabinet.
The implementation of safety functions such as EMERGENCY STOP or safety
door monitoring must only be performed by the F I/O modules within the modular
WAGO-I/O-SYSTEM 750. Only these safe F I/O modules ensure functional
safety in accordance with the latest international standards. WAGO's
interference-free output modules can be controlled by the safety function.
2.1.4 Technical Condition of Specified Devices
The devices to be supplied ex works are equipped with hardware and software
configurations, which meet the individual application requirements. These
modules contain no parts that can be serviced or repaired by the user. The
following actions will result in the exclusion of liability on the part of WAGO
Kontakttechnik GmbH & Co. KG:
•Repairs,
•Changes to the hardware or software that are not described in the
operating instructions,
•Improper use of the components.
Further details are given in the contractual agreements. Please send your
request for modified and new hardware or software configurations directly to
WAGO Kontakttechnik GmbH & Co. KG.

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2.2 System Requirements for the WAGO
Parameterization Tool
2.2.1 PC Hardware
Table 3: PC Hardware Requirements
Component
Requirements
Memory
Min. 1 GB
Free hard disk space
Min. 500 MB;
additional 5.5 GB for the .NET Framework
Processor
Min. 1 GHz
2.2.2 PC Software
Table 4: Required PC Software
Component
Source (Item No.)
Operating system:
Windows 7 / Windows 8 /
Windows 10
Microsoft
(paid Internet download at:
www.microsoft.com/en-us/windows/)
.NET Framework 4.x
Microsoft
(free Internet download at:
www.microsoft.com
Redistributables are included; standard Web
browser with Java support)
WAGO Safety Editor
WAGO
Stand Alone Tool, download latest version from:
www.wago.com

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2.3 Safety Advice (Precautions)
For installing and operating purposes of the relevant device to your system the
following safety precautions shall be observed:
Do not work on devices while energized!
All power sources to the device shall be switched off prior to performing any
installation, repair or maintenance work.
Install device in only one suitable enclosure!
The device is an open system. Install the device in a suitable enclosure. This
enclosure must:
•Guarantee that the max. permissible degree of pollution is not exceeded.
•Offer adequate protection against contact.
•Prevent fire from spreading outside of the enclosure.
•Offer adequate protection against UV irradiation.
•Guarantee mechanical stability
•Restrict access to authorized personnel and may only be opened with tools
Ensure disconnect and overcurrent protection!
The device is intended for installation in automation technology systems.
Disconnect protection is not integrated. Connected systems must be protected by
a fuse.
Provide suitable disconnect and overcurrent protection on the system side!
Ensure a standard connection!
To minimize any hazardous situations resulting in personal injury or to avoid
failures in your system, the data and power supply lines shall be installed
according to standards, with careful attention given to ensuring the correct
terminal assignment. Always adhere to the EMC directives applicable to your
application.

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Observe applicable standards!
In a safety-related application, both the control as well as the attached sensors
and actuators must meet the the applicable normative safety requirements.
Ensure that switches, sensors and actuators comply with current applicable
standards before use.
Ensure proper contact with the DIN-rail!
Proper electrical contact between the DIN-rail and device is necessary to
maintain the EMC characteristics and function of the device.
Replace defective or damaged devices!
Replace defective or damaged device/module (e.g., in the event of deformed
contacts).
Protect the components against materials having seeping and insulating
properties!
The components are not resistant to materials having seeping and insulating
properties such as: aerosols, silicones and triglycerides (found in some hand
creams). If you cannot exclude that such materials will appear in the component
environment, then install the components in an enclosure being resistant to the
above-mentioned materials. Clean tools and materials are imperative for
handling devices/modules.
Clean only with permitted materials!
Clean housing and soiled contacts with propanol.
Do not use any contact spray!
Do not use any contact spray. The spray may impair contact area functionality in
connection with contamination.
Do not reverse the polarity of connection lines!
Avoid reverse polarity of data and power supply lines, as this may damage the
devices involved.

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Avoid electrostatic discharge!
The devices are equipped with electronic components that may be destroyed by
electrostatic discharge when touched. Please observe the safety precautions
against electrostatic discharge per IEC 61340-5-1/-3. When handling the devices,
please ensure that environmental factors (personnel, work space and packaging)
are properly grounded.
Avoid conductive pollution!
Suitable measures must be taken to prevent conductive pollution to achieve
Pollution Degree II in accordance with EN61131-2. If it is not possible to exclude
such materials in the device environment, install the devices in an enclosure
resistant to the conductive pollution (e.g. housing with IP54 type protection).
Clean tools and materials are imperative for handling devices.

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3 Device Description
The safe F I/O modules are intended for safety functions in the area of industrial
automation technology, building technology and process technology to protect
man and machine according to Machinery Directive 2006/42/EC.
The PROFIBUS DP and PROFINET IO fieldbus can be used to connect to the
safe PLC. The F I/O modules can be seamlessly integrated into the existing
WAGO-I/O-SYSTEM 750.
Expensive and inflexible cabling are replaced by flexible configurable safety
functions by safe PROFIsafe data transmission via the existing fieldbus system. It
is then possible to optimize the F I/O module to different safety applications.
The F I/O modules of the WAGO-I/O-SYSTEM 750 can be used to implement
safety applications in accordance with the following standards:
•IEC 61508, up to SIL3
•EN ISO 13849-1, up to Cat.4/PL e
•IEC 62061, up to SIL3
•IEC 61511-1, up to SIL3
Sensors with analog output signal (0 mA …20 mA and 4 mA …20 mA) can be
connected to the inputs of the F I/O module 753-668/000-004 per IEC 60381-1
(see Section “Connecting Devices” > …> “Connection Examples”):
•Pressure sensors
•Force sensors
•Fill level sensors
•Proximity sensors, etc.
The F I/O module 753-668/000-004 has the following properties:
•Four safety-oriented inputs AI1 …AI4
•Four outputs for sensor supply
•Diagnostics via LED display elements and fieldbus service
•iPar server support for saving and restoring iParameters
•Module-wide and channel granular passivation of the analog inputs in case
of error (parameterizable)
•Multiple formats for analog value data formats (RIOforPA, Siemens S7 with
fixed substitute values, Siemens S7 with parameterizable substitute values)
•Sampling frequency with which the input signals are converted into process
values (parameterizable)
•One- and two-channel evaluation of the input signals (parameterizable)
•Discrepancy time monitoring for two-channel evaluation of the analog
inputs (parameterizable)
•Wire break monitoring for each channel, dependent on selected analog
value data format (parameterizable)
•Smoothing and Interference frequency suppression for the input signals
(parameterizable)

20 Device Description WAGO-I/O-SYSTEM 750
753-668/000-004 4FAI 0/4-20 mA Diff PROFIsafe
Manual
Version 1.0.0, valid from HW/SW Version 01/01
•Support for the following protocols and PROFIBUS application profiles:
- PROFIsafe V2.4 and V2.6
- RIOforFA
•Module-internal and module-external error acknowledgement
(parameterizable)
The assignment of the connections is described in the “Connectors” section.
Connection examples are shown in section “Connect Devices” > …>
“Connection Example(s)”.
Multicolor LEDs indicate input status, as well as the status and errors of the
F I/O module.
The meaning of the LEDs is described in the “Display Elements” section.
Observe the information on the power supply concept!
Detailed information and examples for supplying F I/O modules is available in the
section “Connect Devices” > …> “Power Supply Concept”.
The F I/O module 753-668/000-004 (4FAI 0/4-20 mA Diff PROFIsafe) receives
the 24 V voltage supply for the field level from an upstream I/O module or from
the fieldbus coupler/controller via blade-formed power jumper contacts. It then
provides these potentials to subsequent I/O modules via spring-formed power
jumper contacts.
The field voltage and the system voltage are electrically isolated from each other.
With consideration of the power jumper contacts, the individual modules can be
arranged in any combination when configuring the fieldbus node.
An arrangement in groups within the group of potentials is not necessary.
The F I/O module 753-668/000-004 can be operated on the
WAGO-I/O-SYSTEM 750 fieldbus couplers specified in section “Technical Data”
> …> “Communication”: