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DI 32x24VDC HF digital input module
(6ES7521-1BL00-0AB0)
SIMATIC
S7-1500/ET 200MP
DI 32x24VDC HF digital input module (6ES7521-1BL00-0AB0)
Manual
04/2015
A5E03485935-AE
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.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
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.
Siemens AG
Division Digital Factory
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E03485935-AE
Ⓟ 04/2015 Subject to change
Copyright © Siemens AG 2013 - 2015.
All rights reserved
4
Preface
Purpose of the documentation
This manual supplements the system manual for the S7-1500, ET 200MP.
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 change:
As an option, channel 0 and channel 1 can be used for counting as of firmware version
V2.1.0 of the module
If channels 0 and 1 are used for counting, channels 2 to 31 can continue to be used as digital inputs.
Conventions
CPU: 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.
STEP 7: In this documentation, "STEP 7" is used as a synonym for all versions of the configuration and programming software "STEP 7 (TIA Portal)".
DI mode: DI 32x24VDC HF as digital input module with 32 digital inputs (channels 0 to 31).
Counting mode: DI 32x24VDC HF as digital input module with 2 counters (channels 0 and 1) and 30 digital inputs (channels 2 to 31).
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.
DI 32x24VDC HF digital input module (6ES7521-1BL00-0AB0)
Manual, 04/2015, A5E03485935-AE
Preface
Security information
Siemens provides products and solutions with industrial security functions that support the secure operation of plants, solutions, machines, equipment and/or networks. They are important components in a holistic industrial security concept. With this in mind, Siemens’ products and solutions undergo continuous development. Siemens recommends strongly that you regularly check for product updates.
For the secure operation of Siemens products and solutions, it is necessary to take suitable preventive action (e.g. cell protection concept) and integrate each component into a holistic, state-of-the-art industrial security concept. Third-party products that may be in use should also be considered. You can find more information about industrial security on the Internet
( http://www.siemens.com/industrialsecurity ).
To stay informed about product updates as they occur, sign up for a product-specific newsletter. You can find more information on the Internet
( http://support.automation.siemens.com
).
Open Source Software
Open-source software is used in the firmware of the product described. 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 in the appendix.
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Manual, 04/2015, A5E03485935-AE 5
6
Table of contents
3
4
1
2
6
A
B
5
C
2.1
2.2
2.2.1
4.1
4.1.1
4.1.2
4.1.3
4.1.4
4.2
4.2.1
4.2.2
4.2.3
5.1
5.2
5.3
B.1
B.2
B.3
DI 32x24VDC HF digital input module (6ES7521-1BL00-0AB0)
Manual, 04/2015, A5E03485935-AE
Documentation guide
The documentation for the SIMATIC S7-1500 automation system 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.
1
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. 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.
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.
You can download the documentation free of charge from the Internet
( http://www.automation.siemens.com/mcms/industrial-automation-systemssimatic/en/manual-overview/tech-doc-controllers/Pages/Default.aspx
).
Changes and supplements to the manuals are documented in a Product Information.
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Documentation guide
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
( http://support.automation.siemens.com/WW/view/en/86140384 ).
My Documentation Manager
The My Documentation Manager is used to 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 the My Documentation Manager on the Internet
( http://support.industry.siemens.com/My/ww/en/documentation ).
Application examples
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 in individual products.
You can find application examples on the Internet
( https://support.industry.siemens.com/sc/ww/en/sc/2054 ).
CAx Download Manager
The CAx Download Manager is used to access the current product data for your CAx or CAe systems.
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 the CAx Download Manager on the Internet
( http://support.industry.siemens.com/my/ww/en/CAxOnline ).
8
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 ).
DI 32x24VDC HF digital input module (6ES7521-1BL00-0AB0)
Manual, 04/2015, A5E03485935-AE
Product overview
2.1 Properties
Article number:
6ES7521-1BL00-0AB0
View of the module
2
Figure 2-1 View of the DI 32x24VDC HF module
Properties
The module has the following technical properties:
● 32 digital inputs; electrically isolated in groups of 16
– of which channel 0 and 1 optionally with counter function
● Rated input voltage 24 V DC
● Configurable input delay: 0.05 ms to 20 ms
● Configurable diagnostics (per channel)
● Configurable hardware interrupt (per channel)
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Product overview
2.1 Properties
● Suitable for switches and 2-/3-/4-wire proximity switches
● Hardware compatible with digital input module DI 16x24VDC HF (6ES7521-1BH00-0AB0)
The module supports the following functions:
Table 2- 1 Version dependencies of the module functions
Configuration software
Firmware update
Function
Identification data I&M0 to I&M3
Parameter assignment in RUN
Isochronous mode**
Module-internal Shared Input (MSI)
Configurable submodules / submodules for
Shared Device
Firmware version of the module
V1.0.0 or higher
V1.0.0 or higher
V1.0.0 or higher
V1.0.0 or higher
V2.0.0 or higher
V2.0.0 or higher
STEP 7
(TIA Portal)
V12 or higher
V12 or higher
V12 or higher
V12 or higher
V13 Update 3 or higher
(PROFINET IO only)
V13 Update 3 or higher
(PROFINET IO only)
GSD file in STEP 7
(TIA Portal) V12 or higher, or
STEP 7 V5.5 SP3 or higher
--- / X
X
X
---
X
(PROFINET IO only)
X
(PROFINET IO only)
Channel 0 and 1 optionally with counter function*
* Requirement for counter function: Interface module IM 155-5 firmware version V3.0 or higher or CPU S7-15XX firmware version V1.7 or higher
** Not possible in counting mode
V2.1.0 or higher V13, SP1 with HSP
0118 or higher
X
(PROFINET IO only)
You can configure the module with STEP 7 (TIA Portal) and with a GSD file.
Accessories
The following accessories are supplied with the module and can also be ordered separately as spare parts:
● Labeling strips
● U connector
● Universal front door
Other components
The following component must be ordered separately:
Front connectors, including potential jumpers and cable ties
For more information on accessories, refer to the system manual S7-1500/ET 200MP
( http://support.automation.siemens.com/WW/view/en/59191792 ).
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2.2 Functions
Product overview
2.2 Functions
2.2.1
Introduction
Count
As of firmware version V2.1.0 of the module you have the option of using channels 0 and 1 in the "Count" mode. The other channels can be used as standard inputs (DI mode).
If do not use channels 0 and 1 in the "Count" mode, these channels can also be used as digital inputs. The two channels 0 and 1 can only be used as counter inputs together.
When counting, the edges of the digital input are acquired and evaluated accordingly e.g.:
● For counting single items up to a maximum limit
● For applications with repeating counting procedures
Reference
You will find the basics and additional information on the counting function in the function manual Counting, measuring and position detection
( http://support.automation.siemens.com/WW/view/en/59709820 ).
Counting with channel 0 and channel 1
You control the counting function via the IO addresses of the module. These IO addresses are also known as the control interface (output addresses) and feedback interface (input
addresses), see section Address space Counting mode (Page 27).
If you set the parameters of channels 0 and 1 for counting, you then have the following options:
● You influence the behavior if one of the counting limits is exceeded using
– Stop counting.
– Continue counting.
● The bit STS_DQ (bit in the feedback interface) signals that the counted value is in one of the following ranges depending on the parameter assignment:
– Between a comparison value and the high counting limit.
– Between a comparison value and the low counting limit.
● You can set a parameter for a hardware interrupt if a comparison event occurs for DQ.
● You can define counting limits and comparison values for counting from 0 ... 4294967295
(2 32 -1).
● You can set start values or have the user program set load values for counting.
The count direction is only up.
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Product overview
2.2 Functions
Reference
You will find examples of counting with channels 0 and 1 in the section Auto-Hotspot
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Wiring
3
This section contains the block diagram of the module and outlines various wiring options.
You will find information on wiring the front connector, establishing a cable shield, etc in the system manual S7-1500/ET 200MP
( http://support.automation.siemens.com/WW/view/en/59191792 ) in section Wiring.
Wiring and block diagram
The figure below shows how to wire the module and assign channel addresses (input byte a up to input byte d). You can set parameters so that channels 0 and 1 are used for counting.
Channels 2 to 31 can continue to be used as digital inputs.
①
Backplane bus interface CHx Channel or LED channel status (green) xL+ Power supply 24 V DC for relay contacts RUN xM Ground ERROR
LED status display (green)
LED error display (red)
PWR LED supply voltage POWER (green)
Figure 3-1 Block diagram and terminal assignment
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Wiring
Resistor circuitry of the encoders
To detect a wire break, it is necessary that enough quiescent current is flowing even when the encoder contacts are open. Connect a resistor of 25 kΩ to 45 kΩ with 0.25 W to the encoder contacts for this reason.
Figure 3-2 Resistor circuitry of the encoders
Tip: Using the potential jumpers
If you want to supply both load groups with the same potential (non-isolated), use the potential jumpers supplied with the front connector. This helps you to avoid having to terminate two wires to one terminal.
Proceed as follows:
1. Connect the 24 V DC supply voltage to terminals 19 and 20.
2. Insert the potential jumpers between terminals 19 and 39 (xL+) and between terminals 20 and 40 (xM).
3. Use the terminals 39 and 40 to distribute the potential to the next module
14
Figure 3-3 Using the potential jumpers
Note
Ensure that the maximum current load of 8 A per potential jumper is not exceeded.
DI 32x24VDC HF digital input module (6ES7521-1BL00-0AB0)
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Parameters/address space
4
4.1 Parameter
DI 32x24VDC HF parameters
When you assign the module parameters in STEP 7, you use various parameters to specify the module properties. The parameters that can be set depend on whether you use the module in standard mode or in counter mode. You will find the parameters in section
Parameters DI mode (Page 16) or section Parameters of the Counting mode (Page 18). 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
For parameter reassignment in the user program, the parameters are transferred to the module with the WRREC instruction (parameter reassignment in RUN) using data records;
see section Parameter assignment and structure of the parameter data records (Page 47).
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Parameters/address space
4.1 Parameter
4.1.1 Parameters DI mode
Parameters of the DI 32x24VDC HF in the DI mode
In the following table, you will find the parameters in the "DI mode". These parameters apply to channels 0 to 31.
Table 4- 1 Settable parameters and their defaults in the DI mode
Parameter Range of values
Default setting Parameter reassignment in RUN
Range of effectiveness with configuration software, e.g. STEP 7
Integrated in the hardware catalog as of STEP 7,
V13 SP1 or GSD file PROFINET IO
GSD file
PROFIBUS DP
Channel* Channel group**
Diagnostics
• No supply voltage L+
Yes/No No Yes
• Wire break
Input delay
Yes/No
0.05 ms,
0.1 ms, 0.4 ms,
1.6 ms, 3.2 ms,
12.8 ms, 20 ms
No
3.2 ms; for isochronous mode 0.05 ms
(cannot be changed)
Yes
Yes
Channel
Channel
Channel group**
Channel group**
Hardware interrupt***
• Rising edge Yes/No No Yes Channel Channel
• Falling edge Yes/No No Yes Channel Channel
• Rising and falling edge Yes/No No Yes Channel Channel
* If you enable diagnostics for multiple channels, you will receive an alarm surge on failure of the supply voltage because each enabled channel will detect this fault.
You can prevent this message burst by enabling diagnostics for one channel only.
** The scope can be assigned for each channel during parameter assignment in RUN.
*** For the configuration as a 4 x 8-channel module, a maximum of 16 hardware interrupts can be configured
(channels 0 to 15).
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Parameters/address space
4.1 Parameter
4.1.2 Explanation of the parameters of the DI mode
No supply voltage L+
Enabling of the diagnostics, with missing or too little supply voltage L+.
Wire break
Enabling diagnostics if the line to the encoder is interrupted.
Input delay
This parameter can be used to suppress signal disruptions. Changes to the signal are only detected if they are constantly pending longer than the set input delay time.
Hardware interrupt
Specifies whether or not a hardware interrupt is disabled or with which of the following events a hardware interrupt is generated.
● Rising edge
● Falling edge
● Rising and falling edge
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Parameters/address space
4.1 Parameter
4.1.3 Parameters of the Counting mode
Parameters of the DI 32x24VDC HF Count in the Counting mode
If you want to use the module for counting, you need to set the module parameters as DI
32x24VDC HF Count. For channels 0 and channel 1, the following parameter settings are then possible. For channels 2 to 31, the parameter settings apply as with the DI 32x24VDC
HF, , see section Parameters DI mode (Page 16).
Table 4- 2 Settable parameters and their defaults in the Counting mode
Parameter Range of values Default setting
Diagnostics
• No supply voltage L+
Yes/No No
• Wire break
Input delay
Yes/No No
0.05 ms, 0.1 ms,
0.4 ms, 1.6 ms, 3.2 ms,
12.8 ms, 20 ms
3.2 ms; for isochronous mode 0.05 ms
(cannot be changed)
Disable Hardware interrupt • Disable
• Comparison event occurred for DQ
Set output DQ
• Between a comparison value and the high counting limit
• Between a comparison value and the low counting limit
Between a comparison value and the high counting limit
Edge selection • On rising edge
• On falling edge
• On rising and falling edge
High counting limit 0 ... 4294967295
Comparison value 0 ... 4294967295**
On rising edge
4294967295
1
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Parameter reassignment in RUN
Yes
Range of effectiveness with configuration software, e.g. STEP 7
Integrated in the hardware catalog as of STEP 7,
V13 SP1 with
HSP 0118 or
GSD file
PROFINET IO
GSD file
PROFIBUS DP
Channel* ---
Channel
Channel
Channel
Channel
Channel
Channel
Channel
---
---
---
---
---
---
---
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Parameters/address space
4.1 Parameter
Parameter Range of values Default setting Parameter reassignment in RUN
Range of effectiveness with configuration software, e.g. STEP 7
Integrated in the hardware catalog as of STEP 7,
V13 SP1 with
HSP 0118 or
GSD file
PROFINET IO
Channel
Channel
GSD file
PROFIBUS DP
Start value
Behavior when a counting limit is exceeded
0 ... 4294967295**
•
•
Stop counting
Continue counting
0
Stop counting
Yes
Yes
---
---
* If you enable diagnostics for multiple channels, you will receive an alarm storm on failure of the supply voltage because each enabled channel will detect this fault.
You can prevent this message burst by enabling diagnostics for one channel only.
** Comparison value or start value must be less than or equal to the value for the high counting limit.
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Parameters/address space
4.1 Parameter
4.1.4 Explanation of the parameters of the Counting mode
Missing supply voltage L+
Enabling of the diagnostics, with missing or too little supply voltage L+.
Wire break
Enabling diagnostics if the line to the encoder is interrupted.
Input delay
This parameter can be used to suppress signal disruptions. Changes to the signal are only detected if they are constantly pending longer than the set input delay time.
Hardware interrupt
Specifies whether or not a hardware interrupt is generated by the event "Comparison event occurred for DQ" (rising edge at STS_DQ).
Set output DQ
With this parameter, you specify the behavior of the STS_DQ bit in the feedback interface.
You can assign this bit in the user program, for example, with a hardware output, see
Address space Counting mode (Page 27).
Behavior
Between a comparison value and the high counting limit
Between a comparison value and the low counting limit
Meaning
STS_DQ bit is set if the following condition is met:
Comparison value < = counted value < = high counting limit
STS_DQ bit is set if the following condition is met:
Low counting limit < = counted value < = comparison value
Edge selection
With this parameter you specify which edge is used to count.
You can select the following options:
● On rising edge
● On falling edge
● On rising and falling edge
High counting limit
With this parameter you limit the counting range. You can enter a value up to 4294967295
(2 32 - 1).
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Comparison value
With this parameter you specify the count value at which the digital output DQ (STS_DQ bit of the feedback interface) switches due to the selected comparison event.
Start value
Parameters/address space
4.1 Parameter
With this parameter, you specify the value at which counting begins and is continued if defined events occur. The following condition must be met:
Low counting limit < = start value < = high counting limit.
Behavior when a counting limit is exceeded
With this parameter, you specify the behavior if a counting limit is exceeded.
Behavior
Stop counting
Continue counting
Meaning
After a counting limit is exceeded, the counting procedure is aborted and the
STS_GATE bit (internal gate) is reset.
To restart the counting, the SW_GATE bit must be reset via the control interface and set again.
After a counting limit is exceeded, the counted value is set to the other counting limit and counting is continued.
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Parameters/address space
4.2 Address space
4.2 Address space
The module can be configured differently in STEP 7; see following table. Depending on the configuration, additional/different addresses are assigned in the process image of the inputs.
The letters "a to d" are printed onto the module. "EB a" for example, stands for module start address input byte a.
Configuration options of DI 32x24VDC HF
You can configure the module with STEP 7 (TIA Portal) or with a GSD file.
When you configure the module by means of the GSD file, the configurations are available under different abbreviations/module names.
The following configurations are possible:
Table 4- 3 Configuration options
Configuration
1 x 32-channel without value status
1 x 32-channel with value status
4 x 8-channel without value status
4 x 8-channel with value status
1 x 32-channel with value status for module-internal Shared Input with up to
4 submodules
1 x 32 channel with value status (channel
0 and channel 1 for counting, channels
2 to 31 as digital inputs).
Short designation/ module name in the
GSD file
DI 32x24VDC HF
DI 32x24VDC HF QI
DI 32x24VDC HF S
Configuration software, e.g., with STEP 7
(TIA Portal)
Integrated in hardware catalog STEP 7
(TIA Portal)
V12 or higher
V12 or higher
V13 update 3 or higher
(PROFINET IO only)
DI 32x24VDC HF S QI V13 update 3 or higher
DI 32x24VDC HF MSI
DI 32x24VDC HF Count
(PROFINET IO only)
V13 update 3 or higher
(PROFINET IO only)
V13, SP1 with HSP
0118 or higher
GSD file in
STEP 7 (TIA Portal) V12 or higher or STEP 7 V5.5
SP3 or higher
X
X
X
(PROFINET IO only)
X
(PROFINET IO only)
X
(PROFINET IO only)
X
(PROFINET IO only)
Value status (Quality Information, QI)
The value status is always activated for the following module names:
● DI 32x24VDC HF QI
● DI 32x24VDC HF S QI
● DI 32x24VDC HF MSI
● DI 32x24VDC HF Count
An additional bit is assigned to each channel for the value status. The value status bit indicates if the read in digital value is valid. (0 = value is incorrect).
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Parameters/address space
4.2 Address space
4.2.1 Address space DI mode
Address space for configuration as 32-channel DI 32x24VDC HF QI
The following figure shows the assignment of the address space for the configuration as a
32-channel module with value status. You can freely assign the start address for the module.
The addresses of the channels are derived from the start address.
Figure 4-1 Address space for configuration as 32-channel DI 32x24VDC HF QI
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Parameters/address space
4.2 Address space
Address space for configuration as 4 x 8-channel DI 32x24VDC HF S QI
For the configuration as a 4 x 8-channel module, the channels of the module are divided into four submodules. The submodules can be assigned to different IO controllers when the module is used in a shared device.
The number of I/O controllers depends on the interface module being used. Observe the information in the manual for the particular interface module.
Contrary to the 1 x 32-channel module configuration, each of the four submodules has a freely assignable start address.
Figure 4-2 Address space for configuration as 4 x 8-channel DI 32x24VDC HF S QI
Address space for configuration as 1 x 32-channel DI 32x24VDC HF MSI
The channels 0 to 31 of the module are copied in up to four submodules with configuration 1 x 32-channel module (Module-internal shared input, MSI). Channels 0 to 31 are then available with identical input values in different submodules. These submodules can be assigned to up to four IO controllers when the module is used in a shared device. Each IO controller has read access to the same channels.
The number of I/O controllers depends on the interface module being used. Please observe the information in the manual for the particular interface module.
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Parameters/address space
4.2 Address space
Value status (Quality Information, QI)
The meaning of the value status depends on the submodule on which it occurs.
For the first submodule (=basic submodule), the value status 0 indicates that the value is incorrect.
For the 2nd to 4th submodule (=MSI submodule), the value status 0 indicates that the value is incorrect or the basic submodule has not yet been configured (not ready).
The following figure shows the assignment of the address space with submodules 1 and 2 and the value status.
Figure 4-3 Address space for configuration as 1 x 32-channel DI 32x24VDC HF MSI with value status
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Parameters/address space
4.2 Address space
The following figure shows the assignment of the address space with submodules 3 and 4 and the value status.
Figure 4-4 Address space for configuration as 1 x 32-channel DI 32x24VDC HF MSI with value status
Reference
You will find information on the module-internal shared input/shared output (MSI/MSO) in the function manual PROFINET with STEP 7 V13
( http://support.automation.siemens.com/WW/view/en/49948856 ) in the section Moduleinternal shared input/shared output (MSI/MSO).
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Parameters/address space
4.2 Address space
4.2.2 Address space Counting mode
Address space for configuration as 1 x 32-channel DI 32x24VDC Count
The address space of channel 0 and channel 1 used for counting consists of the control and feedback interface. The Count function is controlled directly via the two interfaces. With suitable parameter assignment, a hardware interrupt is triggered.
If you use the module in the "Counting mode" (channels 0 and 1), the module occupies the following address areas:
● 16 bytes in the process image output (control interface).
● 24 bytes in the process image input (feedback interface).
Control interface
The following figure shows the address assignment of the module in the process image output. You use the control interface for example to start the counter or to set the counter value. With the "SW gate" control bit you open and close the software gate of the corresponding channel.
Figure 4-5 Assignment of the address space of the control interface of the DI 32x24VDC Count
(bytes 0 to 7)
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Parameters/address space
4.2 Address space
Figure 4-6 Assignment of the address space of the control interface of the DI 32x24VDC Count
(bytes 8 to 15)
Feedback interface
The following figure shows the address assignment of the module in the process image input. The feedback interface for the counters (channels 0 and 1) begins at input byte x+8.
Via the feedback interface, the user program receives current counted values and status information from the module.
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Parameters/address space
4.2 Address space
Figure 4-7 Assignment of the address space of the feedback interface of the DI 32x24VDC Count
(bytes 0 to 15)
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Parameters/address space
4.2 Address space
Figure 4-8 Assignment of the address space of the feedback interface of the DI 32x24VDC Count
(bytes 16 to 23)
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Parameters/address space
4.2 Address space
4.2.3 Examples of counting
In this section, you will find examples of the behavior of the counter and how you can specify this behavior. You specify the properties of the counter in the parameter assignment.
Behavior when a counting limit is exceeded - Stop counting
The following section describes the effects of the parameter "Behavior when a counting limit is exceeded = Stop counting". To control the counter, the bits of the control byte of the
control interface are used, see section Address space Counting mode (Page 27)
Counting begins at the current counted value (the SW_GATE is set in the control byte). Bit sequence in the control byte of the control interface 0000 1000.
After exceeding the high counting limit, counting is aborted (counting stops), the counted value jumps to the low counting limit = 0. The STS_GATE bit is reset.
To restart the counting, the SW_GATE bit must be reset via the control interface and set again.
Whether or not counting is started again with the current counter value or with the start value depends on the command byte in the control interface.
Bit sequence in control byte of the control interface:
● bit 0 to 2 = "000" Start with current counter value
● bit 0 to 2 = "010" Start with start value
If the SW_GATE bit is reset in the control byte of the control interface before reaching the high counting limit, counting is stopped.
The following figure shows an example of the principle of stopping counting when a counting limit is exceeded.
Figure 4-9 Principle: Stop counting
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Parameters/address space
4.2 Address space
Behavior when a counting limit is exceeded - Continue counting
The following section describes the effects of the parameter "Behavior when a counting limit is exceeded = Continue counting". To control the counter, the bits of the control byte of the
control interface are used, see section Address space Counting mode (Page 27), subsection
Control interface.
Counting begins at the current counted value (the SW-GATE is set in the control byte). Bit sequence in the control byte of the control interface 0000 1000.
After the high counting limit is exceeded, the counted value jumps to the low counting limit =
0 and counting is continued.
If the SW_GATE bit is reset in the control byte of the control interface before reaching the high counting limit, counting is stopped.
The following figure shows an example of the principle of continuing counting when a counting limit is exceeded.
Figure 4-10 Principle: Continue counting
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Parameters/address space
4.2 Address space
Set output DQ - behavior of the STS_DQ bit
The following section shows the behavior of the STS_DQ bit with the parameter assignment
"Set output DQ = between comparison value and high counting limit".
The STS_DQ bit is set to 1 when the comparison value < = counted value <= high counting limit is reached.
As an option, a hardware interrupt can be enabled in the parameter assignment. This is generated with the parameter rising edge of the STS_DQ bit.
The following figure shows an example of the behavior of the STS_DQ bit between the comparison value and high counting limit.
Figure 4-11 Behavior of the STS_DQ bit and hardware interrupt
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Parameters/address space
4.2 Address space
The following section shows the behavior of the STS_DQ bit with the parameter assignment
"Set output DQ = between low counting limit and comparison value".
The STS_DQ bit is set to 1 when the low counting limit < = counted value < = comparison value is reached.
As an option, a hardware interrupt can be enabled in the parameter assignment. This is generated with the parameter rising edge of the STS_DQ bit.
The following figure shows an example of the behavior of the STS_DQ bit between the low counting limit and comparison value.
Figure 4-12 Behavior of the STS_DQ bit and hardware interrupt
Counting limits
The counting limits define the range of values of the counted value used. The counting limits can be set in the parameters and can be changed with the user program during runtime.
Settable high counting limit: 4294967295 (2 32 -1).
Low counting limit (not settable): 0
You can continue or terminate (automatic gate stop) counting if a counting limit is exceeded, see the parameter "Behavior when a counting limit is exceeded".
Start value/load value
The start value is specified in the parameter assignment with STEP 7 (TIA Portal). The load value can be changed by the user program. Both values must be between the low counting limit and high counting limit.
Comparison values
You specify a comparison value per channel that can control the feedback bit STS_DQ regardless of the user program. When the current counted value corresponds to the comparison condition set in the parameters, the feedback bit STS_DQ is set. You can use the feedback bit STS_DQ to control a digital output of a digital output module.
The comparison values can be set in the parameters and can be changed with the user program during runtime.
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Gate control
Parameters/address space
4.2 Address space
The opening and closing of the software gate (SW-GATE) defines the time window in which the count signals are acquired. The software gate is controlled by the user program.
Reference
You can find additional information on the counting functionality in the function manual
S7-1500, ET 200MP, ET 200SP counting, measuring and position detection
( http://support.automation.siemens.com/WW/view/en/59709820 ).
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Interrupts/diagnostics alarms
5.1 Status and error displays
LED displays
The following figure shows you the LED displays (status and error displays) of
DI 32x24VDC HF.
5
Figure 5-1 LED displays of the module DI 32x24VDC HF
Meaning of the LED displays
The following tables explain the meaning of the status and error displays. Remedial
measures for diagnostic reports can be found in chapter Diagnostics alarms (Page 40).
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Interrupts/diagnostics alarms
5.1 Status and error displays
RUN and ERROR LED
Table 5- 1 Status and error displays RUN and ERROR
RUN
Off
LED
ERROR
Off
Meaning
Voltage missing or too low at backplane bus
Remedy
Flashes
On
On
Flashes
Off
Off
Flashes
Flashes
The module starts and flashes until the valid parameter assignment is set.
Module is configured
Indicates module errors (at least one error at one channel, e.g., wire break).
Hardware defective
• Switch on the CPU and/or the system power supply modules.
• Verify that the U connectors are inserted.
• Check to see if too many modules are inserted.
---
Evaluate the diagnostics data and eliminate the error (e.g., wire break).
Replace the module.
PWR1 and PWR2 LED
Table 5- 2 PWR1 and PWR2 status indication
LED PWR1 / PWR2
Off
On
Meaning
Supply voltage L+ too low or missing
Supply voltage L+ is present and OK
CHx LED
Table 5- 3 CHx status display
LED CHx
Off
On
On
Meaning
0 = Status of the input signal
1 = Status of the input signal
Diagnostics: Wire break
Supply voltage L+ too low or missing
Remedy
Check supply voltage L+.
---
Remedy
---
---
Check the wiring. When using simple switches, deactivate diagnostics or connect a resistor
(25 kΩ … 45 kΩ) to the encoder contacts.
Check supply voltage L+
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Interrupts/diagnostics alarms
5.2 Interrupts
5.2 Interrupts
Digital input module DI 32x24VDC HF supports diagnostic and hardware interrupts.
Diagnostic interrupt
The module generates a diagnostic interrupt at the following events:
● Missing supply voltage L+
● Wire break
● Parameter assignment error
Hardware interrupt
The module generates a hardware interrupt at the following events:
● Rising edge
● Falling edge
● Rising and falling edge
● Comparison event occurred for DQ (only in "Counting mode")
For detailed information on the error event, refer to the hardware interrupt organization block with the "RALRM" instruction (read additional interrupt info) and to the STEP 7 online help.
The module channel that triggered the hardware interrupt is entered in the start information of the organization block. The figure below shows the assignment to the bits of the local data double word 8.
38
Figure 5-2 Start information of the organization block
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Interrupts/diagnostics alarms
5.2 Interrupts
Structure of the additional interrupt information
Table 5- 4 Structure of USI = W#16#0001
Data block name
USI
(User Structure Identifier)
Contents
W#16#0001
The channel that triggered the hardware interrupt follows.
Channel B#16#00 to B#16#1F
Comment
Additional interrupt info for hardware interrupts of the I/O module
Number of the event-triggering channel
(channel 0 to channel 31 of the module)
It follows the error event that triggered the hardware interrupt.
Event B#16#01
B#16#02
B#16#05
Rising edge
Falling edge
Comparison event occurred for DQ (only in
"Counting mode")
Bytes
2
1
1
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Interrupts/diagnostics alarms
5.3 Diagnostics alarms
5.3 Diagnostics alarms
Diagnostics alarms
A diagnostics alarm is generated and the ERROR-LED flashes for each diagnostics event on the module. The diagnostics alarms can, for example, be read out in the diagnostics buffer of the CPU. You can evaluate the error codes with the user program.
If the module is operated distributed with PROFIBUS DP in an ET 200MP system, you have the option to read out diagnostics data with the instruction RDREC or RD_REC using data record 0 and 1. The structure of the data records is available on the Internet in the "Manual for interface module IM 155-5 DP ST (6ES7155-5BA00-0AB0)".
Table 5- 5 Diagnostics alarms, their meaning and corrective measures
Diagnostics alarm
Wire break*
Error code Meaning
6
H
Impedance of encoder circuit too high
Corrective measures
Use a different encoder type or modify the wiring, for example, using cables with larger cross-section
Connect the cable Wire break between the module and sensor
Channel not connected (open) • Disable diagnostics
• Connect a resistor of 25 kΩ to 45 kΩ to the encoder contacts
Correct the parameter assignment Parameter assignment error
10
H
• The module cannot evaluate parameters for the channel
• Incorrect parameter assignment
Load voltage missing 11
H
Hardware interrupt lost
16
H
Supply voltage L+ of the module is missing
The module cannot trigger an interrupt because the previous interrupt was not acknowledged; possibly a configuration error
Connect supply voltage L+ to module/channel
• Change interrupt processing in the
CPU and, if necessary, edit the module parameters.
• The error persists until the module is assigned new parameters
* If the supply voltage fails in case of a pending wire break diagnostics, the value status momentarily indicates an incorrect value.
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Technical specifications
Technical specifications of the DI 32x24VDC HF
Product type designation
General information
6ES7521-1BL00-0AB0
DI 32x24VDC HF
Hardware version
Firmware version
Product function
I&M data
FS01
V2.1.0
Yes; I&M0 to I&M3
Engineering with
STEP 7 TIA Portal can be configured/integrated as of version
V13 SP1 / -
STEP 7 can be configured/integrated as of version V5.5 SP3 / -
PROFIBUS as of GSD version/GSD revision V1.0 / V5.1
PROFINET as of GSD version/GSD revision
Operating mode
DI
Counter
MSI
Supply voltage
V2.3 / -
Yes
Yes
Yes
Rated value (DC)
Valid range, low limit (DC)
Valid range, high limit (DC)
Reverse polarity protection
Input current
Current consumption, max.
24 V
20.4 V
28.8 V
Yes
40 mA; 20 mA per group with 24 V DC supply
Power
Power consumption from the backplane bus
Power loss
Power loss, typ.
Digital inputs
Number of inputs
Digital inputs, configurable reading m/p
Input characteristic curve acc. to IEC 61131, type 3
1.1 W
4.2 W
32
Yes reading p
Yes
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Technical specifications
Digital input functions, can be set in parameters
Gate start/stop Yes freely usable digital input
Counter
Yes
• Number, max. 2
• Counting frequency, max. 1 kHz
• Counting width 32 bits
Up • Counting direction up/down
Input voltage
Type of input voltage
Rated value (DC) for signal "0" for signal "1"
Input current for signal "1", typ.
Input delay (for rated value of input voltage)
For standard inputs
• Configurable
6ES7521-1BL00-0AB0
DC
24 V
-30 ... +5 V
+11 ... +30 V
2.5 mA
Yes; 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms
• with "0" to "1", min. 0.05 ms
• with "0" to "1", max. 20 ms
• with "1" to "0", min. 0.05 ms
20 ms
• with "1" to "0", max.
For interrupt inputs
• Configurable for counters/technological functions
• Configurable
Cable length shielded, max. unshielded, max.
Encoders
Connectable encoders
2-wire sensor
• Permissible quiescent current (2-wire sensor), max.
Isochronous mode
Isochronous mode (application synchronized up to terminal)
Filtering and processing time (TCI), min.
Bus cycle time (TDP), min.
Yes
Yes
1000 m
600 m
Yes
1.5 mA
Yes
80 µs; with 50 μs filter time
250 µs
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Technical specifications
Interrupts/diagnostics/status information
Interrupts
Diagnostic interrupt
Hardware interrupt
Diagnostics alarms
Diagnostics
Monitoring of supply voltage
Wire break
Short-circuit
Fuse blown
Diagnostics indicator LED
RUN LED
ERROR LED
Monitoring of the supply voltage (PWR LED)
Channel status display
For channel diagnostics
For module diagnostics
Electrical isolation
Electrical isolation of channels
Between the channels
Between the channels, in groups of
Between the channels and the backplane bus
Between the channels and the supply voltage of the electronics
Permitted potential difference
Between different circuits
Isolation
Isolation tested with
Distributed mode prioritized startup
Dimensions
Width
Height
Depth
Weights
Weight, approx.
Yes
16
Yes
No
6ES7521-1BL00-0AB0
Yes
Yes
Yes
Yes
Yes; to I < 350 µA
No
No
Yes; green LED
Yes; red LED
Yes; green LED
Yes; green LED
Yes; red LED
Yes; red LED
75 V DC / 60 V AC (basic insulation)
707 V DC (type test)
Yes
35 mm
147 mm
129 mm
260 g
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Technical specifications
Tolerances of the programmable input delay
Table 6- 1 Tolerances of the programmable input delay
Input delay
0.05 ms
0.1 ms
0.4 ms
1.6 ms
3.2 ms (preset)
12.8 ms
20 ms
Tolerance range
43 μs to 57 μs
86 μs to 114 μs
344 μs to 456 μs
1.5 ms to 1.9 ms
3 ms to 4 ms
12 ms to 15 ms
19 ms to 23 ms
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Dimensional drawing
A
The dimensional drawing of the module on the mounting rail, as well as a dimensional drawing with open front cover, are provided in the appendix. Always observe the specified dimensions for installation in cabinets, control rooms, etc.
Figure A-1 Dimensional drawing of the DI 32x24VDC HF module
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Dimensional drawing
Figure A-2 Dimensional drawing of the DI 32x24VDC HF module, side view with open front cover
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Parameter data records
B
B.1 Parameter assignment and structure of the parameter data records
The data records of the module have an identical structure, regardless of whether you configure the module with PROFIBUS DP or PROFINET IO.
Dependencies for configuration with GSD file
When configuring the module with a GSD file, remember that the settings of some parameters are dependent on each other. The parameters are only checked for plausibility by the module after the transfer to the module.
DI mode: no dependencies. You can assign the individual parameters in any combination.
Counting mode: The following table lists the parameters that depend on one another.
Table B- 1 Dependencies of parameters for configuration with GSD file
Device-specific parameters (GSD file)
Comparison value
Start value
Dependent parameters
0 ... high counting limit
0 ... high counting limit
Parameter assignment in the user program
You have the option to reconfigure the module in RUN (e.g. the input delay values of selected channels can be edited without having an effect on the other channels).
Parameter assignment in RUN
The WRREC instruction is used to transfer the parameters to the module using data records
0 to 31. The parameters set in STEP 7 do not change in the CPU, which means the parameters set in STEP 7 are still valid after a restart.
The parameters are only checked for plausibility by the module after the transfer.
Output parameter STATUS
The module ignores errors that occurred during the transfer of parameters with the WRREC instruction and continues operation with the previous parameter assignment. However, a corresponding error code is written to the STATUS output parameter.
The description of the WRREC instruction and the error codes is available in the STEP 7 online help.
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Parameter data records
B.2 Structure of the parameter data records DI mode
Operation of the module behind a PROFIBUS DP interface module
If the module is operated behind a PROFIBUS DP interface module, the parameter data records 0 and 1 are not read back. You get the diagnostics data records 0 and 1 for the read back parameter data records 0 and 1. You can find more information in the Interrupts section of the PROFIBUS DP interface module device manual on the Internet
( http://support.automation.siemens.com/WW/view/en/78324181 ).
B.2 Structure of the parameter data records DI mode
Assignment of data record and channel
For the configuration with 1 x 32 channels, the parameters are located in data records 0 to
31 and are assigned as follows:
● Data record 0 for channel 0
● Data record 1 for channel 1
● …
● Data record 30 for channel 30
● Data record 31 for channel 31
For the configuration as a 4 x 8-channel module, the module has 4 submodules with eight channels each. The parameters for the channels are located in data records 0 to 7 and are assigned as follows:
● Data records 0 to 7 for channels 0 to 7 (submodule 1)
● Data records 0 to 7 for channels 8 to 15 (submodule 2)
● Data records 0 to 7 for channels 16 to 23 (submodule 3)
● Data records 0 to 7 for channels 24 to 31 (submodule 4)
Address the respective submodule for data record transfer.
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Parameter data records
B.2 Structure of the parameter data records DI mode
Structure of a data record in the DI mode
The example in the following figure shows the structure of data record 0 for channel 0. The structure of channels 1 to 31 is identical. The values in byte 0 and byte 1 are fixed and may not be changed.
Enable a parameter by setting the corresponding bit to "1".
Figure B-1 Structure of data record 0: Bytes 0 to 3
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Parameter data records
B.3 Structure of the parameter data records Counting mode
B.3 Structure of the parameter data records Counting mode
Assignment of data record and channel
For the configuration with 1 x 32 channels, the parameters are located in data records 0 to
31 and are assigned as follows:
● Data record 0 for channel 0 with counting function
● Data record 1 for channel 1 with counting function
● Data record 2 for channel 2 (structure as in DI mode)
● …
● Data record 30 for channel 30 (structure as in DI mode)
● Data record 31 for channel 31 (structure as in DI mode)
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Parameter data records
B.3 Structure of the parameter data records Counting mode
Structure of data record 0 of the Counting mode
The example in the figure below shows the structure of data record 0 for channel 0. The structure of channel 1 is identical, the values are located in data record 1.
The values in byte 0 and byte 1 are fixed and may not be changed.
Enable a parameter by setting the corresponding bit to "1".
Figure B-2 Structure of data record 0: Bytes 0 to 4
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Parameter data records
B.3 Structure of the parameter data records Counting mode
Figure B-3 Structure of data record 0: Bytes 5 to 17
Keep in mind that the counter is stopped and reset to the start value when you change count parameters.
Changing the parameters "Diagnostics" and "Hardware interrupts" does not have an effect on the counter.
Structure of data records 2 to 31
The structure of data records 2 to 31 for channels 2 to 31 is identical to the structure in the
DI mode, see section Structure of the parameter data records DI mode (Page 48), figure
Structure of data record 0: Bytes 0 to 3.
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Open Source Software
C
For resellers: In order to avoid infringements of the license conditions by the reseller or the buyer, these instructions and license conditions have to be forwarded to the buyers.
License Conditions and Disclaimers for Open Source Software and other Licensed Software
In the product "Digital Modules, Analog Modules, Technological Modules, Communication
Modules and Power Supply Modules of the SIMATIC S7-1500, ET 200MP", Copyright
Siemens AG, 2013 - 2014 (hereinafter "Product"), the following Open Source Software is used either unchanged or in a form that we have modified, and additionally the other License
Software noted below.
Liability for Open Source Software
Open Source Software is provided free of charge. We are liable for the Product including
Open Source Software contained in accordance with the license conditions applicable to the
Product. Any liability for use of Open Source Software beyond the program flow intended for the Product is explicitly excluded.
We do not provide any technical support for the Product if it has been modified.
Please read the license conditions and copyright notes for Open Source Software as well as other licensed software:
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Open Source Software
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