IEC 60947-5-7:2024

Low-voltage switchgear and controlgear - Part 5-7: Control circuit devices and switching elements - Proximity devices with analog output

IEC 60947-5-7:2024 states the requirements for proximity devices that correspond to the scope of IEC 60947-5-2:2019 with analog output (PDAO) and/or a digital output to transmit a corresponding digital value representing the detected sensing input. These devices can provide additional parameters.
This second edition cancels and replaces the first edition published in 2003. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) New structure;
b) Update and expansion of definitions on analog output properties;
c) Expanded performance requirements on analog output;
d) Update and new normative references;
e) Update of EMC requirements;
f) Harmonization with IEC 62828 series;
g) Harmonization with IEC 62683 and IEC 61987 definitions;
h) Harmonization with IEC 61131-2 requirements;
i) Update of the Annex A (former Annex G), Example of the determination of the conformity;
j) New Annex B, Overview tests and influence quantities;
k) New Annex C, Additional requirements for proximity switches with analog output incorporating a built-in communication interface complying with IEC 61131-9;
l) New Annex D, Main characteristics for proximity devices with analog output.

Appareillage à basse tension - Partie 5-7: Appareils et éléments de commutation pour circuits de commande - Détecteurs de proximité à sortie analogique

L'IEC 60947-5-7:2024 établit les exigences relatives aux détecteurs de proximité relevant du domaine d'application de l'IEC 60947-5-2:2019 qui comportent une sortie analogique (PDAO, Proximity Devices with Analog Output) et/ou une sortie numérique pour transmettre une valeur numérique correspondante qui représente l'entrée sensible détectée. Ces appareils peuvent fournir des paramètres supplémentaires.
Cette seconde édition annule et remplace la première édition parue en 2003. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) nouvelle structure;
b) mise à jour et développement des définitions relatives aux propriétés de sortie analogiques;
c) développement des exigences relatives aux performances des sorties analogiques;
d) mise à jour et ajout de nouvelles références normatives;
e) mise à jour des exigences de CEM;
f) harmonisation avec la série IEC 62828;
g) harmonisation avec les définitions de l'IEC 62683 et l'IEC 61987;
h) harmonisation avec les exigences de l'IEC 61131-2;
i) mise à jour de l'Annexe A (ancienne Annexe G), Exemple de détermination de la conformité;
j) ajout de l'Annexe B, Vue d'ensemble des essais et grandeurs d'influence;
k) ajout de l'Annexe C, Exigences supplémentaires pour les détecteurs de proximité à sortie analogique qui comportent une interface de communication intégrée conforme à l'IEC 61131-9;
l) ajout de l'Annexe D, Caractéristiques principales des détecteurs de proximité à sortie analogique.

General Information

• Status: Published
• Publication Date: 04-Apr-2024
• ICS: 29.130.20 - Low voltage switchgear and controlgear
• Technical Committee: SC 121A - Low-voltage switchgear and controlgear
• Drafting Committee: WG 3 - TC 121/SC 121A/WG 3
• Current Stage: PPUB - Publication issued
• Start Date: 05-Apr-2024
• Completion Date: 19-Apr-2024

Relations

• Revises: IEC 60947-5-7:2003 - Low-voltage switchgear and controlgear - Part 5-7: Control circuit devices and switching elements - Requirements for proximity devices with analogue output
• Effective Date: 05-Sep-2023

Overview

IEC 60947-5-7:2024 is the second edition of the international standard specifying requirements for proximity devices with analog output used in low-voltage switchgear and controlgear. It focuses on control circuit devices and switching elements that provide an analog or combined analog and digital output to represent detected proximity sensing input signals. This updated edition supersedes the 2003 version and reflects significant technical revisions to harmonize with related IEC standards and to address modern performance and EMC requirements.

The standard is designed to ensure consistency, reliability, and interoperability of proximity devices with analog outputs, which are increasingly used in industrial automation, machinery safety, and process control systems. It defines performance parameters, constructional criteria, testing regimes, and conformity assessment procedures to aid manufacturers, engineers, and users in selecting and applying these devices effectively.

Key Topics

• Scope and Classification: Defines proximity devices with analog output (PDAO) characteristics within the larger IEC 60947-5 series. Clarifies device types, operating principles, and output configurations.

• Analog Output Characteristics: Specifies rated voltages, currents, load conditions, and linearity requirements for analog signal outputs. Defines static and dynamic output parameters ensuring signal integrity under various conditions.

• Performance and Construction Requirements: Details design and manufacturing criteria including electrical, mechanical, and environmental robustness. Incorporates security aspects and requirements for embedded software within devices.

• Testing and Verification: Establishes comprehensive test procedures for functionality, accuracy, EMC compliance, and influence quantity assessments. Includes special tests for devices with built-in communication interfaces aligned with IEC 61131-9.

• Product Information and Environmental Considerations: Describes required technical documentation, identification markings, and environmental data to support eco-conscious design and materials declaration.

• Annexes:

  • Examples illustrating conformity assessment for linear and nonlinear sensors.
  • Overview of test conditions and environmental influence quantities.
  • Additional normative requirements for analog output proximity devices with communication interfaces.
  • Libraries of device properties and value lists to assist standard-compliant product specification.

Applications

IEC 60947-5-7:2024 proximity devices with analog output are essential components in a wide range of industrial and commercial sectors, including:

• Industrial automation: Enabling precise position, speed, and presence detection in manufacturing lines.
• Safety and control systems: Enhancing reliability of control circuits requiring analog feedback signals for continuous monitoring.
• Robotics and machinery: Providing accurate analog inputs for motion control and process optimization.
• Process industries: Monitoring fluid levels, component proximity, and dimensional measurements with analog outputs for process control systems.
• Building automation: Supporting proximity sensing in access control and environment monitoring with analog feedback.

By adhering to this standard, manufacturers can ensure reliable device performance and seamless integration into control systems, ultimately improving system safety, accuracy, and efficiency.

Related Standards

• IEC 60947-5-2:2019: Defines proximity devices with digital output, forming the basis for analog and digital output device categorization and requirements.
• IEC 62828 series: Harmonizes evaluation and testing methodologies for sensor devices to ensure performance consistency.
• IEC 62683 and IEC 61987: Provide unified terminology and definitions for sensor properties and outputs.
• IEC 61131-2: Specifies requirements for programmable controllers, enhancing compatibility for control circuit device integration.
• IEC 61131-9: Addresses communication interfaces used within proximity devices, supported by additional normative requirements in this standard.

---

Keywords: IEC 60947-5-7:2024, proximity devices, analog output, low-voltage switchgear, controlgear, control circuit devices, switching elements, industrial automation, sensor standards, analog signal, EMC compliance, embedded software, device conformity, industrial sensors, IEC standards.

Standards Content (Sample)

IEC 60947-5-7 ®
Edition 2.0 2024-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low- voltage switchgear and controlgear –
Part 5-7: Control circuit devices and switching elements – Proximity devices
with analogue output
Appareillage à basse tension –
Partie 5-7 : Appareils et éléments de commutation pour circuits de commande –
Détecteurs de proximité à sortie analogique
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IEC 60947-5-7 ®
Edition 2.0 2024-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Low- voltage switchgear and controlgear –

Part 5-7: Control circuit devices and switching elements – Proximity devices with

analogue output
Appareillage à basse tension –

Partie 5-7 : Appareils et éléments de commutation pour circuits de commande –

Détecteurs de proximité à sortie analogique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.20  ISBN 978-2-8322-8582-4

– 2 – IEC 60947-5-7:2024 © IEC 2024
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 8
3 Terms, definitions and list of abbreviated terms . 8
3.1 Basic definitions . 8
3.2 Operation of a proximity device . 9
3.3 Output element characteristics . 12
3.4 List of abbreviated terms . 15
4 Classification . 16
4.1 General . 16
5 Analog characteristics . 16
5.1 General . 16
5.3 Rated and limiting values for the proximity device and output elements . 16
5.3.1 Voltages . 16
5.3.2 Currents . 16
5.3.3 Load conditions . 17
5.3.4 Linearity . 17
6 Product information . 17
6.1 Nature of information – Identification . 17
6.1.1 Adding information . 17
6.1.2 Specific information of 6.1.1 bc) Output characteristics . 18
6.4 Environmental information . 18
6.4.1 Environmentally conscious design process (ECD process) . 18
6.4.2 Procedure to establish material declaration . 18
7 Normal service, mounting and transport conditions . 18
8 Constructional and performance requirements . 19
8.1 General . 19
8.1.1 Load conditions . 19
8.1.18 Security aspects . 19
8.1.19 Embedded software . 19
8.2 Performance requirements . 19
8.2.1 Acceptance criteria . 19
8.5 Analog output limit values . 19
8.5.1 General . 19
8.5.2 Environmental test conditions . 20
9 Tests . 21
9.1 General . 21
9.3.1 Test sequences . 21
9.6 Verification of the electromagnetic compatibility . 22
9.6.1 General . 22
9.8 Additional requirements for proximity switches with analog output . 22
9.8.1 Requirements for test programs and proper functioning verification
procedures (PFVPs) . 22
9.8.2 Verification of analog output . 23
9.8.3 Accuracy and related factors . 24

9.9 Testing of detection capabilities of physical sizes like operating distance,
speed, rotation speed, frequency, etc. . 25
9.9.1 General . 25
Annex A (informative) Example of the determination of the conformity . 27
A.1 Example 1 of the determination of the conformity of an angle sensor, with
linear output characteristics . 27
A.2 Example 2 of the determination of the conformity of a position sensor, with
nonlinear output characteristics . 30
A.3 Test report and technical documentation . 32
A.3.1 Test report . 32
A.3.2 Technical documentation . 32
A.3.3 Total probable error TPE . 32
Annex B (informative) Overview tests and influence quantities . 34
B.1 Tests at the standard reference conditions . 34
B.2 Tests at ambient and process reference conditions for influence quantities . 36
Annex C (normative) Additional requirements for proximity switches with analog output
incorporating a built-in communication interface complying with IEC 61131-9 . 37
C.1 General . 37
C.5 Analog Characteristics . 37
C.5.1 Rated and limiting values for SDCI . 37
C.6 Product information . 37
C.8 Constructional and performance requirements . 37
C.8.1 Constructional requirements . 37
C.8.2 Electromagnetic compatibility (EMC) . 37
C.9 Tests . 38
C.9.1 Kinds of tests . 38
Annex D (informative) Main characteristics for proximity devices with analog output . 39
D.1 Properties of proximity devices with analog output . 39
D.2 Library of product properties and value lists . 41
D.2.1 Library of properties used in the device classes . 41
D.2.2 Value lists of properties . 44
Bibliography . 46

Figure 1 – Proximity device with analog output (PDAO), schematic block diagram
structure . 7
Figure 2 – Principle diagram of time values and their meanings . 14
Figure 3 – Principle diagram of limit values and their ranges . 15
Figure 4 – limit values of analog output signals . 20
Figure A.1 – Output values diagram corresponding to example of Table A.1 . 28
Figure A.2 – Error curves corresponding to example of Table A.1 . 29
Figure A.3 – Non-linearity error curves corresponding to the example of Table A.1 . 30
Figure A.4 – Output values diagram corresponding to example of Table A.2 . 31
Figure A.5 – Error curves corresponding to example of Table A.2 . 32

Table 1 – Range of analog voltage signals . 16
Table 2 – Range of analog current signals . 17
Table 3 – Load conditions . 17

– 4 – IEC 60947-5-7:2024 © IEC 2024
Table 4 – Analog output signal static characteristics . 18
Table 5 – Analog output dynamic characteristics . 18
Table 6 – Analog output overload immunity test . 24
Table 7 – Number of measurement cycles and number and position of test points . 24
Table A.1 – Example table for the errors of a linear sensor . 27
Table A.2 – Example table for the errors of a nonlinear sensor . 31
Table B.1 – Summary of the tests at the reference conditions . 34
Table B.2 – Summary of tests for influence quantities at the operating conditions . 36
Table D.1 – proximity sensing devices with analog output . 39
Table D.2 – Library of properties used in the device classes . 41
Table D.3 – Value lists of properties . 44

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 5-7: Control circuit devices and switching elements –
Proximity devices with analog output

FOREWORD
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IEC 60947-5-7 has been prepared by subcommittee 121A: Low-voltage switchgear and
controlgear, of IEC technical committee 121: Switchgear and controlgear and their assemblies
for low voltage. It is an International Standard.
This second edition cancels and replaces the first edition published in 2003. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) New structure;
b) Update and expansion of definitions on analog output properties;
c) Expanded performance requirements on analog output;

– 6 – IEC 60947-5-7:2024 © IEC 2024
d) Update and new normative references;
e) Update of EMC requirements;
f) Harmonization with IEC 62828 series;
g) Harmonization with IEC 62683 and IEC 61987 definitions;
h) Harmonization with IEC 61131-2 requirements;
i) Update of the Annex A (former Annex G), Example of the determination of the conformity;
j) New Annex B, Overview tests and influence quantities;
k) New Annex C, Additional requirements for proximity switches with analog output
incorporating a built-in communication interface complying with IEC 61131-9;
l) New Annex D, Main characteristics for proximity devices with analog output.
This International Standard is to be read in conjunction with IEC 60947-5-2:2019.
The text of this International Standard is based on the following documents:
Draft Report on voting
121A/592/FDIS 121A/604/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all the parts in the IEC 60947 series, under the general title Low-voltage switchgear
and controlgear, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 5-7: Control circuit devices and switching elements –
Proximity devices with analog output

1 Scope
This part of IEC 60947 states the requirements for proximity devices that correspond to the
scope of IEC 60947-5-2:2019 with analog output (PDAO) and/or a digital output to transmit a
corresponding digital value representing the detected sensing input. These devices can provide
additional parameters. Figure 1 shows the schematic principle of such a device. They might
consist of one or more parts.
The requirements of IEC 60947-5-2, Low-voltage switchgear and controlgear – Part 5-2: Control
circuit devices and switching elements – Proximity switches, apply with the additions and
modifications as stated in this document. The clause numbering in this document follows the
clause numbering of IEC 60947-5-2, modified where necessary.

Key
evaluation unit Evaluating electronic circuitry, e.g. MCU, ASIC component…
Figure 1 – Proximity device with analog output (PDAO),
schematic block diagram structure
This document does not apply to industrial process measurement transmitters according to
IEC 62828 series.
Examples of typical applications for in-scope products:
• factory automation and machinery industry;
• logistic and packaging industry;
• conveyor belts, lifts;
• process industry;
• power plants.
– 8 – IEC 60947-5-7:2024 © IEC 2024
Special applications (e.g. corrosive atmosphere) can cause additional requirements.
Products covered by the scope of this document are expected to be selected, installed, and
maintained by skilled personnel only.
NOTE 1 Analog proximity devices can be linear or non linear.
NOTE 2 The specific requirements, characteristics, and test procedures for an analog output interface which are
described in Clauses 5, 6 and 9 of this document, are based on requirements written in IEC 61131-2:2017.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60947-5-2:2019, Low-voltage switchgear and controlgear – Part 5-2: Control circuit devices
and switching elements – Proximity switches
IEC 61131-9:2022, Programmable controllers – Part 9: Single-drop digital communication
interface for small sensors and actuators (SDCI)
IEC 62443 (all parts), Industrial communication networks – Network and system security
IEC TS 63208:2020, Low-voltage switchgear and controlgear – Security aspects
3 Terms, definitions and list of abbreviated terms
For the purposes of this document, the terms and definitions given in IEC 60947-5-2:2019 and
the following apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1 Basic definitions
3.1.1
proximity device with analog output
PDAO
device producing an output signal which varies continuously depending on the physical quantity
(e.g. distance, speed, rotation, etc.) detected/calculated by the proximity device in relation to
its target object(s)
3.1.2
lower range value
minimum stated input value above which the output signal varies continuously
3.1.3
upper range value
maximum stated input value below which the output signal varies continuously

3.1.4
range of input values
range defined by lower range value and upper range values of the sensing element detection
capability, or calculated value (e.g. distance, speed, r/min, etc.), within which the limits of
uncertainty of the proximity device are specified
Note 1 to entry: A principle diagram describing the terms of 3.1.2 to 3.1.4 is given in Figure 3.
3.1.5
span
range of input values
algebraic difference between the values of the upper and lower limits of the measuring range
Note 1 to entry: Upper and lower limits do not reflect the sensing capabilities of the device, but the relevant upper
and lower values for the application.
Note 2 to entry: The CDD code of this entry for Electronic Data Exchange is ABB785, modified ("other variables"
removed).
[SOURCE: IEC 60050-311:2001, 311-03-13, modified — Notes to entry added]
3.2 Operation of a proximity device
3.2.1
linearity
ability of a proximity device to provide an indication having a linear relationship with a defined
quantity other than an influence quantity
Note 1 to entry: The method of expression of lack of linearity is different for different kinds of device and is
established in each particular instance.
[SOURCE: IEC 60050-311:2001, 311-06-05, modified – "measuring instrument" replaced by
"proximity device"]
3.2.2
conformity of the output signal curve
ability of a proximity device to provide an indication having a specified characteristic curve
which can be linear, logarithmic, parabolic, etc.
3.2.3
non-linearity
deviation from ideal behaviour for devices that have a linear input/output relationship,
determined from the curve plotted using the overall average of corresponding upscale and
downscale errors
Note 1 to entry: Non-linearity can be calculated and expressed in one of three ways: – independent: line positioned
so as to minimize the maximum deviation; – terminal-based: line positioned so as to coincide with the actual
characteristic curve at the upper and lower range-values; – zero-based: line positioned so as to coincide with the
actual characteristic curve at the lower range-value.
Note 2 to entry: The corresponding properties can be found in the CDD.
Note 3 to entry: Linearity is defined in IEC 60050-300:2001, 311-06-06.
Note 4 to entry: Non-linearity does not include hysteresis.
Note 5 to entry: Conformity is often used in conjunction with non-linear curves.
[SOURCE: IEC 61987-13:2016, modified — Notes to entry added]

– 10 – IEC 60947-5-7:2024 © IEC 2024
3.2.4
non-conformity of the output signal curve
deviation from ideal behaviour for devices that have a non-linear input/output relationship,
determined from the curve plotted using the overall average of corresponding upscale and
downscale errors
Note 1 to entry: The non-conformity is defined as the closeness with which an average error curve approximates to
a specified characteristic curve (which can be linear, logarithmic, parabolic, etc.).
3.2.5
true value
value consistent with the definition of a given particular quantity
Note 1 to entry: This term is used in the "true value" approach.
Note 2 to entry: Value that would be obtained by a perfect measurement.
Note 3 to entry: True values are by nature indeterminate.
Note 4 to entry: The indefinite article "a", rather than the definite article "the", is used in conjunction with "true
value" because there can be many values consistent with the definition of a given particular quantity.
[SOURCE: IEC 60050-311:2001, 311-01-04]
3.2.6
conventional true value
value attributed to a particular quantity and accepted, sometimes
by convention, as having an uncertainty appropriate for a given purpose
Note 1 to entry: This term is used in the "uncertainty" approach.
Note 2 to entry: The "conventional true value" is sometimes called "assigned value", "best estimate of the value",
"conventional value" or "reference value". The term "reference value", in this sense, should not be confused with
"reference value" in the sense used in IEC 60050-311:2001, 311-07-01.
Note 3 to entry: Frequently, a large number of results of measurement of a quantity are used to establish a
conventional true value.
Note 4 to entry: An alternative concept of measurement uncertainty used for measurement instruments is described
in IEC Guide 115:2021, Application of uncertainty of measurement to conformity assessment activities in the
electrotechnical sector.
3.2.7
inaccuracy
maximum positive and negative deviation from the specified characteristic curve observed in
testing a device under specified conditions and by a specified procedure
Note 1 to entry: Accuracy is defined in IEC 60050-311:2001, 311-06-08.
[SOURCE: IEC 61298-1:2008, 3.5]
3.2.8
long term drift
drift in output monitored for 30 days at 90 % of span
[SOURCE: IEC 61987-1:2008, 3.22]

3.2.9
long term stability
drift of zero output signal in percent of full scale limit after a given period of normal operating
conditions
Note 1 to entry: The long term stability can be evaluated over a different period of time, e.g. 6 months, 1, 2 or 5
years. Sometimes manufacturers declare a life-time stability.
Note 2 to entry: Depending the type of a proximity device, the drift can be referred to an upper range limit, a fixed
value, a full scale, etc.
3.2.10
repeatability
value of variation of the output signal under specified conditions expressed as a percentage of
the span
Note 1 to entry: This definition is more general and not equal to the definition in IEC 60947-5-2:2019.
3.2.11
resolution value
resolution of the value of the physical quantity
Note 1 to entry: The resolution value from the digital output value and the analog output value can be different.
3.2.12
error
discrepancy between a computed, observed or measured value or condition, and the true,
specified or theoretically correct value or condition
Note 1 to entry: An error within a system may be caused by failure of one or more of its components, or by activation
of a systematic fault.
[SOURCE: IEC 60050-192:2015, 192-03-02]
3.2.13
linearity error of the digital output
maximum deviation between the real and the ideal curve of the digital output
3.2.14
linearity error of the analog output
maximum deviation between the real and the ideal curve of the analog output
3.2.15
reference base for linearity error
basis for stating the linearity error for analog output
Note 1 to entry: The reference base can be output span, full scale or definition by the manufacturer.
3.2.16
upscale error
arithmetic mean of the errors at each value of each measurement cycle with increasing input
value
3.2.17
downscale error
arithmetic mean of the errors at each value of each measurement cycle with decreasing input
value
3.2.18
average error
arithmetic mean of all upscale and downscale readings at each value

– 12 – IEC 60947-5-7:2024 © IEC 2024
3.2.19
maximum measured error
largest positive or negative value of errors of the average upscale or downscale values at each
point of measurement
Note 1 to entry: Synonymous to measured error expressed as percentage ABB652 of IEC 61987.
[SOURCE: IEC 61298-1:2008]
3.2.20
total probable error
TPE
number obtained by taking the square root of the total sum of the squares of the individual error
factors, adopted to consistently compare the performances of two (or more) devices
Note 1 to entry: It is assumed that the variables of the individual errors are independent of each other.
Note 2 to entry: When combining all the error factors, the units of measure shall all be the same.
3.3 Output element characteristics
3.3.1
analog current signal
current signal which varies in a continuous manner within its range
3.3.2
analog voltage signal
voltage signal which varies in a continuous manner within its range
3.3.3
range of an analog signal
all values of the signal between and including defined limits
3.3.4
output span
algebraic difference between the values of the upper and the lower limits of the output signal
3.3.5
lower limit output signal
specified minimum value of the range
Note 1 to entry: The lower limit may be either zero or a finite value; when zero is used, this is called "true zero";
when a finite value is used, this is called "live zero".
3.3.6
upper limit output signal
specified maximum value of the range
3.3.7
load impedance
impedance or impedances for which the
output characteristics of the proximity device are specified
3.3.8
ripple content
ratio between the peak-to-peak value of the AC component and the upper limit of the signal
value
3.3.9
recovery time
time taken, following the removal of an external influence, for the output signal to return to its
previous value within the limits of repeatability as defined in 3.2.10
3.3.10
warm-up time
duration between the instant when the power supply is energized and the instant when the
device can be used, as specified by the manufacturer
[SOURCE: IEC 61987 DB: Identifier IECABB026, see Figure 2]
3.3.11
settling time
time interval between the step change of an input signal and the instant when the resulting
variation of the output of the signal does not deviate more than 1% from its final steady state
value
[SOURCE: IEC 61987 DB: Identifier IECABA999, see Figure 2]
3.3.12
output signal
analog or digital representation of the physical quantity value produced by a transducer
Note 1 to entry: A transmitter is a transducer with standardized output, see IEC 60050-351:2013, 351-56-29.
[SOURCE: IEC 60050-314:2001, 314-04-06, modified – "measurand" replaced by "physical
quantity value"]
3.3.13
transition region
part of the output range between the specified minimum (resp. maximum) value and the lower
(resp. upper) signal characterizing a product failure
Note 1 to entry: A principle diagram is given in Figure 4a) and Figure 4b).

– 14 – IEC 60947-5-7:2024 © IEC 2024

Key
t time
Figure 2 – Principle diagram of time values and their meanings

Figure 3 – Principle diagram of limit values and their ranges
3.3.14
single-drop digital communication interface (SDCI)
digital communication interface for switching 24 V devices (e.g. IO-Link™ ) defining a point-to
point communication link for connecting sensors and actuators to a master unit
3.4 List of abbreviated terms
ASIC Application specific integrated circuit
CDD Common Data Dictionary
ECD Environmentally conscious design process
EMC Electromagnetic compatibility
EUT Equipment under test
IOL IO-link
LSB Least significant bit
MCU Microcontroller unit
PDAO Proximity device with analog output
PFVP Proper functioning verification procedures
SDCI Single-drop digital communication interface
TPE Total probable error
___________
IO-Link™ is a trade name of the "IO-Link Consortium". This information is given for the convenience of users of
this publication and does not constitute an endorsement by IEC of the trade name holder or any of its products.
Compliance to this publication does not require use of the registered logos for IO-Link™. Use of the registered
logos for IO-Link™ requires permission of the "IO-Link Consortium".

– 16 – IEC 60947-5-7:2024 © IEC 2024
4 Classification
4.1 General
Classification shall be in accordance with Table 1 of IEC 60947-5-2:2019, with the following
specifications and additions in columns:
th
– 4 pos./1digit "Switching Element Function (Output) 4.5": value "S" = Others
th
– 5 pos./1digit Type of Output 4.6: additional value "A" = Analog Output, "C" =
Communication / Digital output
th
– Combination of output signals are described: 4 pos./1digit value S = Others
th
5 pos. value S = Others
th
– Insert 7 digit "n" = Number of output signals (1, 2, etc.)
5 Analog characteristics
5.1 General
Characteristics shall be in accordance with Clause 5 of IEC 60947-5-2:2019 with the following
additions.
The main characteristics of the analog outputs for proximity sensing devices are described in
Annex D.
5.3 Rated and limiting values for the proximity device and output elements
5.3.1 Voltages
5.3.1.6 Range of analog voltage signals
The range of analog voltage signals shall be the range given in Table 1.
Table 1 – Range of analog voltage signals
a a
Lower limit Upper limit
[V] [V]
0 +10
a
Other voltage limits may be used on specific agreement between manufacturer
and user
5.3.1.7 Ripple content of the output voltage
The maximum ripple content shall be stated by the manufacturer.
5.3.2 Currents
5.3.2.5 Range of analog current signals
The range of analog current signals shall be the range given in Table 2.

Table 2 – Range of analog current signals
a a
Lower limit Upper limit
[mA] [mA]
4 20
a
Other current limits may be used on specific agreement between manufacturer
and user
5.3.2.6 Ripple content of the output current
The maximum ripple content shall be stated by the manufacturer. The bandwidth of the
measurement instrument may be provided as an additional information.
5.3.3 Load conditions
Analog output rated values of signals range and load impedance for corresponding analog
outputs of control equipment shall be as specified in Table 3.
Table 3 – Load conditions
Output signal range Load impedance limits Normative items
a
0 to 10 V ≥ 2 000 Ω
a
4 mA to 20 mA ≤ 500 Ω
a
Outputs shall withstand any overload from open circuit to short circuit

5.3.4 Linearity
The non-linearity shall be within ±10 % of the span (see 3.2.3).
6 Product information
6.1 Nature of information – Identification
Clause 6 of IEC 60947-5-2:2019 applies with the following additions:
6.1.1 Adding information
The following information shall be provided in the manufacturer’s documentation if relevant.
bc) output characteristics acc. Table 4 and Table 5
bd) range of stated value (e.g. distance, speed, r/min etc.)
be) ripple content
bf) non-linearity / non-conformity (incl. curve characteristic e.g. parabolic, exponential, etc.)
bg) recovery time
bh) settling time
bi) warm-up time
bj) inaccuracy
bk) non-repeatability
bl) load conditions
– 18 – IEC 60947-5-7:2024 © IEC 2024
6.1.2 Specific information of 6.1.1 bc) Output characteristics
6.1.2.1 Information on analog output static characteristics
The manufacturer shall provide the appropriate information from Table 4, with respect to analog
outputs.
Table 4 – Analog output signal static characteristics
Static characteristics Units and examples
Output type e.g. current, voltage
Output signal range e.g. 4 mA to 20 mA, 0 to 10 V
Output impedance in output signal range (manufacturer shall specify Ω
according to the load condition defined in Table 3)
Maximum measured error Limits of maximum error at (23 ± 5) °C ± % of output span
b
± % of output span
Maximum error over full temperature range
a, b
Number of bits
Resolution of digital/analog-converter (DAC)
Value of a LSB (least significant bit) at the analog output signal after D/A mV, mA
a
converter
a
If applicable
b
Only on demand
6.1.2.2 Information on analog output dynamic characteristics
The manufacturer shall provide the appropriate information from Table 5, with respect to analog
outputs.
Table 5 – Analog output dynamic characteristics
Dynamic characteristics Units and examples
a
ms
Settling time for full range change
Recovery
...