Siemens Simatic S7-1500 User manual

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SIMATIC
S7-1500/ET 200MP
Analog Input Module AI 8xU/I HS
(6ES7531-7NF10-0AB0)
Manual
12/2016
A5E03484886
-AE
Preface
Documentation guide
1
Product overview
2
Wiring
3
Parameters/address space
4
Interrupts/diagnostics alarms
5
Technical specifications
6
Dimensional drawing
A
Parameter data records
B
Representation of analog
values
C

Siemens AG
Division Digital Factory
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E03484886-AE
Ⓟ
12/2016 Subject to change
Copyright © Siemens AG 2013 - 2016.
All rights res
erved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by
personnel qualified
for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
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Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

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Preface
Purpose of the documentation
This manual supplements the system manual: S7-1500/ET 200MP
(https://support.industry.siemens.com/cs/ww/en/view/59191792) automation system.
Functions that relate in general to the systems are described in these system manuals.
The information provided in this manual and in the system/function manuals supports you in
commissioning the systems.
Changes compared to previous version
Compared to the previous version, this manual contains the following changes:
●Updated technical specifications "common mode interference"
Conventions
The term "CPU" is used in this manual both for the CPUs of the S7-1500 automation system,
as well as for interface modules of the ET 200MP distributed I/O system.
Please also observe notes marked as follows:
Note
A note contains important information regarding the product described in the documentation
or its handling, or draws special attention to a section of the documentation.
Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is
necessary to implement – and continuously maintain – a holistic, state-of-the-art industrial
security concept. Siemens’ products and solutions only form one element of such a concept.
Customer is responsible to prevent unauthorized access to its plants, systems, machines
and networks. Systems, machines and components should only be connected to the
enterprise network or the internet if and to the extent necessary and with appropriate security
measures (e.g. use of firewalls and network segmentation) in place.
Additionally, Siemens’ guidance on appropriate security measures should be taken into
account. For more information about industrial security, please visit
(http://www.siemens.com/industrialsecurity).
Siemens’ products and solutions undergo continuous development to make them more
secure. Siemens strongly recommends to apply product updates as soon as available and to
always use the latest product versions. Use of product versions that are no longer supported,
and failure to apply latest updates may increase customer’s exposure to cyber threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS
Feed under (http://www.siemens.com/industrialsecurity).

Preface
Analog Input Module AI 8xU/I HS (6ES7531-7NF10-0AB0)
Manual, 12/2016, A5E03484886-AE 5
Open Source Software
Open-source software is used in the firmware of the I/O modules. Open Source Software is
provided free of charge. We are liable for the product described, including the open-source
software contained in it, pursuant to the conditions applicable to the product. Siemens
accepts no liability for the use of the open source software over and above the intended
program sequence, or for any faults caused by modifications to the software.
For legal reasons, we are obliged to publish the original text of the license conditions and
copyright notices. Please read the information relating to this on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/109739516).

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Table of contents
Preface ................................................................................................................................................... 4
1 Documentation guide .............................................................................................................................. 7
2 Product overview .................................................................................................................................. 11
2.1 Properties............................................................................................................................... 11
2.2 Functions................................................................................................................................ 13
2.2.1 Oversampling for inputs ......................................................................................................... 13
3 Wiring ................................................................................................................................................... 15
4 Parameters/address space ................................................................................................................... 19
4.1 Measuring types and ranges.................................................................................................. 19
4.2 Parameters............................................................................................................................. 20
4.3 Declaration of parameters...................................................................................................... 22
4.4 Address space ....................................................................................................................... 24
5 Interrupts/diagnostics alarms................................................................................................................. 31
5.1 Status and error displays ....................................................................................................... 31
5.2 Interrupts ................................................................................................................................ 33
5.3 Diagnostics alarms................................................................................................................. 35
6 Technical specifications ........................................................................................................................ 36
A Dimensional drawing............................................................................................................................. 42
B Parameter data records ........................................................................................................................ 44
B.1 Parameter assignment and structure of the parameter data records .................................... 44
C Representation of analog values ........................................................................................................... 49
C.1 Representation of input ranges.............................................................................................. 50
C.2 Representation of analog values in voltage measuring ranges............................................. 51
C.3 Representation of analog values in the current measuring ranges ....................................... 52
C.4 Measured values for wire break diagnostic ........................................................................... 53

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Documentation guide
1
The documentation for the SIMATIC S7-1500 automation system, the CPU 1516pro-2 PN
based on SIMATIC S7-1500 and the SIMATIC ET 200MP distributed I/O system is arranged
into three areas.
This arrangement enables you to access the specific content you require.
Basic information
The System Manual and Getting Started describe in detail the configuration, installation,
wiring and commissioning of the SIMATIC S7-1500 and ET 200MP systems. For
CPU 1516pro-2 PN you use the corresponding operating instructions. The STEP 7 online
help supports you in the configuration and programming.
Device information
Product manuals contain a compact description of the module-specific information, such as
properties, wiring diagrams, characteristics and technical specifications.

Documentation guide
Analog Input Module AI 8xU/I HS (6ES7531-7NF10-0AB0)
8Manual, 12/2016, A5E03484886-AE
General information
The function manuals contain detailed descriptions on general topics regarding the SIMATIC
S7-1500 and ET 200MP systems, e.g. diagnostics, communication, motion control, Web
server, OPC UA.
You can download the documentation free of charge from the Internet
(http://w3.siemens.com/mcms/industrial-automation-systems-simatic/en/manual-
overview/Pages/Default.aspx).
Changes and supplements to the manuals are documented in a Product Information.
You can download the product information free of charge from the Internet
(https://support.industry.siemens.com/cs/us/en/view/68052815).
Manual Collection S7-1500/ET 200MP
The Manual Collection contains the complete documentation on the SIMATIC S7-1500
automation system and the ET 200MP distributed I/O system gathered together in one file.
You can find the Manual Collection on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/86140384).
SIMATIC S7-1500 comparison list for programming languages
The comparison list contains an overview of which instructions and functions you can use for
which controller families.
You can find the comparison list on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/86630375).
"mySupport"
With "mySupport", your personal workspace, you make the best out of your Industry Online
Support.
In "mySupport", you can save filters, favorites and tags, request CAx data and compile your
personal library in the Documentation area. In addition, your data is already filled out in
support requests and you can get an overview of your current requests at any time.
You must register once to use the full functionality of "mySupport".
You can find "mySupport" on the Internet (https://support.industry.siemens.com/My/ww/en).
"mySupport" - Documentation
In the Documentation area in "mySupport" you can combine entire manuals or only parts of
these to your own manual.
You can export the manual as PDF file or in a format that can be edited later.
You can find "mySupport" - Documentation on the Internet
(http://support.industry.siemens.com/My/ww/en/documentation).

Documentation guide
Analog Input Module AI 8xU/I HS (6ES7531-7NF10-0AB0)
Manual, 12/2016, A5E03484886-AE 9
"mySupport" - CAx data
In the CAx data area in "mySupport", you can access the current product data for your CAx
or CAe system.
You configure your own download package with a few clicks.
In doing so you can select:
●Product images, 2D dimension drawings, 3D models, internal circuit diagrams, EPLAN
macro files
●Manuals, characteristics, operating manuals, certificates
●Product master data
You can find "mySupport" - CAx data on the Internet
(http://support.industry.siemens.com/my/ww/en/CAxOnline).
Application examples
The application examples support you with various tools and examples for solving your
automation tasks. Solutions are shown in interplay with multiple components in the system -
separated from the focus on individual products.
You will find the application examples on the Internet
(https://support.industry.siemens.com/sc/ww/en/sc/2054).
TIA Selection Tool
With the TIA Selection Tool, you can select, configure and order devices for Totally
Integrated Automation (TIA).
This tool is the successor of the SIMATIC Selection Tool and combines the known
configurators for automation technology into one tool.
With the TIA Selection Tool, you can generate a complete order list from your product
selection or product configuration.
You can find the TIA Selection Tool on the Internet
(http://w3.siemens.com/mcms/topics/en/simatic/tia-selection-tool).

Documentation guide
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SIMATIC Automation Tool
You can use the SIMATIC Automation Tool to run commissioning and maintenance activities
simultaneously on various SIMATIC S7 stations as a bulk operation independently of the TIA
Portal.
The SIMATIC Automation Tool provides a multitude of functions:
●Scanning of a PROFINET/Ethernet network and identification of all connected CPUs
●Address assignment (IP, subnet, gateway) and station name (PROFINET device) to a
CPU
●Transfer of the date and the programming device/PC time converted to UTC time to the
module
●Program download to CPU
●Operating mode switchover RUN/STOP
●Localization of the CPU by means of LED flashing
●Reading out CPU error information
●Reading the CPU diagnostic buffer
●Reset to factory settings
●Updating the firmware of the CPU and connected modules
You can find the SIMATIC Automation Tool on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/98161300).
PRONETA
With SIEMENS PRONETA (PROFINET network analysis), you analyze the PROFINET
network during commissioning. PRONETA features two core functions:
●The topology overview independently scans PROFINET and all connected components.
●The IO check is a fast test of the wiring and the module configuration of a system.
You can find SIEMENS PRONETA on the Internet
(https://support.industry.siemens.com/cs/ww/en/view/67460624).

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Product overview
2
2.1
Properties
Article number
6ES7531-7NF10-0AB0
View of the module
Figure 2-1 View of the AI 8xU/I HS module
Properties
The module has the following technical properties:
●8 analog inputs
●Voltage or current measuring type can be set per channel
●Resolution 16 bits including sign
●Configurable diagnostics (per channel)
●Hardware interrupt on limit violation can be set per channel (two low and two high limits
per channel)
●High-speed update of measured values

Product overview
2.1 Properties
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The module supports the following functions:
Table 2- 1 Version dependencies of the module functions
Function
Firmware version
of the module
Configuration software
STEP 7
(TIA Portal)
GSD file in STEP 7
(TIA Portal) V12 or higher,
or STEP 7 V5.5 SP3 or
higher
Firmware update
V1.0.0 or higher
V12 or higher
--- / X
Identification data I&M0 to I&M3
V1.0.0 or higher
V12 or higher
X
Parameter assignment in RUN V1.0.0 or higher V12 or higher X
Isochronous mode
V1.0.0 or higher
V12 or higher
---
Calibration in runtime
V1.0.0 or higher
V12 or higher
X
Module internal Shared Input (MSI) V2.0.0 or higher V13 Update 3 or higher
(PROFINET IO only)
X
(PROFINET IO only)
Configurable submodules / submod-
ules for Shared Device
V2.0.0 or higher V13 Update 3 or higher
(PROFINET IO only)
X
(PROFINET IO only)
Oversampling V2.1.0 or higher V14 or higher and HSP 0186
(PROFINET IO only)
---
You can configure the module with STEP 7 (TIA Portal) and with a GSD file. The
oversampling function requires isochronous mode and can therefore only be configured with
STEP 7 (TIA Portal).
Accessories
The following accessories are supplied with the module and can also be ordered separately
as spare parts:
●Shield bracket
●Shield terminal
●Power supply element
●Labeling strips
●U connector
●Universal front door
Other components
The following component can be ordered separately:
Front connectors, including potential jumpers and cable ties
You can find additional information on accessories in the S7-1500/ET 200MP
(http://support.automation.siemens.com/WW/view/en/59191792) system manual.

Product overview
2.2 Functions
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2.2
Functions
2.2.1
Oversampling for inputs
Function
Oversampling is defined as the transfer of data in constant bus cycle segments (sub-cycles),
whereby n sub-cycles correspond to one PROFINET bus cycle. The configured number n of
sub-cycles corresponds to one data cycle. Each sub-cycle reads in a measured value.
Oversampling is useful whenever you require acquisition of data with high time resolution but
without using an extremely short PROFINET bus cycle and thus fast CPU cycles.
With oversampling, a PROFINET bus cycle is divided into constant bus sub-cycles:
●One 16-bit value is read in per channel in each sub-cycle.
●The shortest possible sub-cycle is 62.5 μs.
●Sub-cycles are possible in increments of 2 to 16. The following applies here: Isochronous
data cycle / number of sub-cycles ≥ permitted sub-cycle duration (62.5 μs).
Typical areas of applications
Quality-monitoring measurements, for example when recording pressure trends during the
blowing process of PET bottle production.
Requirements
●Firmware version V2.1.0 or higher of the module.
●Isochronous mode has to be set.
Configuration
You configure the oversampling function by means of the sampling rate parameter.

Product overview
2.2 Functions
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Chronological sequence
The recorded input data of a data cycle (send clock) is copied into the interface module in
the next data cycle and is available for the module in the data cycle after that.
The figure below shows the chronological sequence for oversampling with 10 sub-cycles.
n
Recorded value from Cycle n
Figure 2-2 Chronological sequence with oversampling
Sampling interval
The duration of a sub-cycle corresponds to the sampling time. The bus cycle time TDP (send
clock for isochronous mode) is specified in the configuration software. The actual sampling
interval of the module results from this time divided by the set sampling rate (2-16).
Figure 2-3 Example for the calculation of the sampling interval

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Wiring
3
This section contains the block diagram of the module and various wiring options.
You can find information on wiring the front connector, establishing a cable shield, etc in the
Wiring section of the S7-1500/ET 200MP
(http://support.automation.siemens.com/WW/view/en/59191792)hotspot text system manual.
Note
•
You may use and combine the different wiring options for all channels.
•
Do not insert the potential jumpers included with the front connector!
Abbreviations used
Meaning of the abbreviations used in the following figures:
U
n
+/U
n
-
Voltage input channel n (voltage only)
I
n
+/I
n
-
Current input channel n (current only)
UVn
Supply voltage at channel n for 2-wire transmitters (2WT)
L+
Supply voltage connection
M
Ground connection
M
ANA
Reference potential of the analog circuit
CHx
Channel or display of the channel status
PWR
Display for the supply voltage
Pin assignment for the power supply element
The power supply element is plugged onto the front connector for powering the analog
module. Wire the supply voltage to terminals 41 (L+) and 44 (M). Use terminals 42 (L+) and
43 (M) to loop the potential to the next module.
Figure 3-1 Power supply element wiring

Wiring
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Block diagram and pin assignment for voltage measurement
The example in the figure below shows the pin assignment for a voltage measurement.
①
Analog-to-Digital Converter (ADC)
CHx
Channel or 8 x channel status (green/red)
②
Backplane bus interface
RUN
Status display LED (green)
③
Supply voltage via power supply element
ERROR
Error display LED (red)
④
Equipotential bonding cable (optional)
PWR
LED for power supply (green)
Figure 3-2 Block diagram and pin assignment for voltage measurement

Wiring
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Block diagram and pin assignment for 4-wire transmitter for current measurement
The example in the following figure shows the pin assignment for current measurement with
4-wire transmitters.
①
Wiring 4-wire transmitter
CHx
Channel or 8 x channel status (green/red)
②
Analog-to-Digital Converter (ADC)
RUN
Status display LED (green)
③
Backplane bus interface
ERROR
Error display LED (red)
④
Supply voltage via power supply element
PWR
LED for power supply (green)
⑤
Equipotential bonding cable (optional)
Figure 3-3 Block diagram and pin assignment for 4-wire transmitter for current measurement

Wiring
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Block diagram and pin assignment for 2-wire transmitter for current measurement
The example in the following figure shows the pin assignment for current measurement with
2-wire transmitters.
①
Wiring 2-wire transmitter
CHx
Channel or 8 x channel status (green/red)
②
Analog-to-Digital Converter (ADC)
RUN
Status display LED (green)
③
Backplane bus interface
ERROR
Error display LED (red)
④
Supply voltage via power supply element
PWR
LED for power supply (green)
⑤
Equipotential bonding cable (optional)
Figure 3-4 Block diagram and pin assignment for 2-wire transmitter for current measurement

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Parameters/address space
4
4.1
Measuring types and ranges
Introduction
The module is set to voltage measuring type with measuring range ±10 V by default. You
need to reassign the module parameters with STEP 7 if you want to use a different
measuring type or range.
The following table shows the measuring types and the respective measuring range.
Measuring type
Measuring range
Voltage 1 V to 5 V
±5 V
±10 V
Current 2WMT
(2-wire transmitter)
4 mA to 20 mA
Current 4WMT
(4-wire transmitter)
4 mA to 20 mA
0 mA to 20 mA
±20 mA
Deactivated
-
The tables of the input ranges, overflow, undershoot range, etc. are available in appendix
Representation of analog values (Page 49).

Parameters/address space
4.2 Parameters
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4.2
Parameters
Parameters of the AI 8xU/I HS
The AI 8xU/I HS is usually already integrated in the hardware catalog of STEP 7 (TIA Portal).
In this case, STEP 7 (TIA Portal) checks the configured properties for plausibility during
configuration.
However, you can also assign parameters to the module by means of a GSD file and the
configuration software of any provider. The module does not check the validity of the
configured properties until after the configuration has been loaded.
When you assign the module parameters in STEP 7, you use various parameters to specify
the module properties. The following table lists the configurable parameters. The effective
range of the configurable parameters depends on the type of configuration. The following
configurations are possible:
●Central operation with a S7-1500 CPU
●Distributed operation on PROFINET IO in an ET 200MP system
●Distributed operation on PROFIBUS DP in an ET 200MP system
When assigning parameters in the user program, use the WRREC instruction to transfer the
parameters to the module by means of data records; refer to the section Parameter
assignment and structure of the parameter data records (Page 44).
The following parameter settings are possible:
Table 4- 1 Configurable parameters and their defaults
Parameters
Range of values
Default
setting
Parameter
assignment
in RUN
Scope with configuration software, e.g., STEP 7
(TIA Portal)
Integrated in the hard-
ware catalog STEP 7
(TIA Portal) as of V12 or
GSD file PROFINET IO
GSD file
PROFIBUS DP
AI configuration
Sampling rate
(for the oversampling
function)
1...16 val-
ues/cycle
1 No Module
(not GSD file)
---
Diagnostics
•Missing supply volt-
age L+
Yes/No No Yes Channel 1) Module 3)
•Overflow Yes/No No Yes Channel Module 3)
•Underflow Yes/No No Yes Channel Module 3)
•Wire break Yes/No
(Voltage: 1 V to
5 V
Current: 4 mA to
20 mA)
No Yes Channel Module 3)