Siemens SIMATIC S7-1500 Manual
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Siemens SIMATIC S7-1500 Manual

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

  • Page 4: Preface

    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.
  • Page 5 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.

  • Page 6: Table Of Contents

    Table of contents Preface ..............................4 Documentation guide ..........................7 Product overview ..........................11 Properties ..........................11 Functions ..........................13 2.2.1 Oversampling for inputs ......................13 Wiring ..............................15 Parameters/address space ........................19 Measuring types and ranges ....................19 Parameters ..........................20 Declaration of parameters ......................

  • Page 7: Documentation Guide

    Documentation guide 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.
  • Page 8 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).
  • Page 9 ● 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.
  • Page 10 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.

  • Page 11: Product Overview

    Product overview 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 ●...
  • Page 12 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. Analog Input Module AI 8xU/I HS (6ES7531-7NF10-0AB0) Manual, 12/2016, A5E03484886-AE...

  • Page 13: Functions

    Product overview 2.2 Functions 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.
  • Page 14 Product overview 2.2 Functions 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. Recorded value from Cycle n Figure 2-2 Chronological sequence with oversampling...

  • Page 15: Wiring

    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.
  • Page 16 Wiring 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) Channel or 8 x channel status (green/red) ② Backplane bus interface Status display LED (green) ③...
  • Page 17 Wiring 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 Channel or 8 x channel status (green/red) ② Analog-to-Digital Converter (ADC) Status display LED (green) ③...
  • Page 18 Wiring 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 Channel or 8 x channel status (green/red) ② Analog-to-Digital Converter (ADC) Status display LED (green) ③...

  • Page 19: Parameters/Address Space

    Parameters/address space 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.

  • Page 20: Parameters

    Parameters/address space 4.2 Parameters 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.
  • Page 21 Parameters/address space 4.2 Parameters Parameters Range of values Default Parameter Scope with configuration software, e.g., STEP 7 setting assignment (TIA Portal) in RUN Integrated in the hard- GSD file ware catalog STEP 7 PROFIBUS DP (TIA Portal) as of V12 or GSD file PROFINET IO 1.185 mA or 1.185 mA...

  • Page 22: Declaration Of Parameters

    Parameters/address space 4.3 Declaration of parameters Declaration of parameters Sampling rate Specifies the number of sub-cycles per isochronous data cycle for the for the oversampling function. Missing supply voltage L+ Enabling of the diagnostics, with missing or too little supply voltage L+. Overflow Enabling of the diagnostics if the measured value violates the high limit.
  • Page 23 Parameters/address space 4.3 Declaration of parameters Smoothing The individual measured values are smoothed using filtering. The smoothing can be set in 4 levels. Smoothing time = number of module cycles (k) x cycle time of the module. The following figure shows after how many module cycles the smoothed analog value is almost 100%, depending on the set smoothing.

  • Page 24: Address Space

    Parameters/address space 4.4 Address space 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. Configuration options of AI 8xU/I HS You can configure the module with STEP 7 (TIA Portal) or with a GSD file.
  • Page 25 Parameters/address space 4.4 Address space Address space of the AI 8xU/I HS and AQ 8xU/I HS QI The following figure shows the address space allocation for the configuration as 8-channel module. You can freely assign the start address for the module. The addresses of the channels are derived from the start address.
  • Page 26 Parameters/address space 4.4 Address space Address space for configuration as 8 x 1-channel AI 8xU/I HS QI and AI 8xU/I HS S QI For the configuration as a 8 x 1-channel module, the channels of the module are divided into multiple submodules.
  • Page 27 Parameters/address space 4.4 Address space Address space for configuration as 1 x 8-channel AI 8xU/I HS MSI The channels 0 to 7 of the module are copied in up to four submodules with configuration 1 x 8-channel module (Module-internal shared input, MSI). Channels 0 to 7 are then available with identical input values in different submodules.
  • Page 28 Parameters/address space 4.4 Address space The following figure shows the assignment of the address space with submodules 1 and 2. Figure 4-4 Address space for configuration as 1 x 8-channel AI 8xU/I HS MSI with value status Analog Input Module AI 8xU/I HS (6ES7531-7NF10-0AB0) Manual, 12/2016, A5E03484886-AE...
  • Page 29 Address space for configuration as 1 x 8-channel AI 8xU/I HS MSI with value status Reference You can find information on the Shared Input/Output (MSI/MSO) function in the section Module-Internal Shared Input/Output (MSI/MSO) of the PROFINET with STEP 7 V13 (https://support.industry.siemens.com/cs/ww/en/view/49948856) function manual. Analog Input Module AI 8xU/I HS (6ES7531-7NF10-0AB0) Manual, 12/2016, A5E03484886-AE...
  • Page 30 Parameters/address space 4.4 Address space Address space for configuration as 1 x 8-channel AI 8xU/I HS for oversampling The following figure shows the address space assignment with the configuration as 8-channel module for the oversampling function. You can freely assign the start address for the module.

  • Page 31: Interrupts/Diagnostics Alarms

    Interrupts/diagnostics alarms Status and error displays LED displays The following figure shows the LED displays (status and error displays) of AI 8xU/I HS. Figure 5-1 LED displays of the module AI 8xU/I HS Analog Input Module AI 8xU/I HS (6ES7531-7NF10-0AB0) Manual, 12/2016, A5E03484886-AE...
  • Page 32 Interrupts/diagnostics alarms 5.1 Status and error displays Meaning of the LED displays The following tables explain the meaning of the status and error displays. Remedial measures for diagnostic alarms can be found in section Diagnostic alarms. RUN and ERROR LED Table 5- 1 Status and error displays RUN and ERROR Meaning...

  • Page 33: Interrupts

    Interrupts/diagnostics alarms 5.2 Interrupts Interrupts Analog input module AI 8xU/I HS supports the following diagnostic and hardware interrupts. You can find detailed information on the event in the error organization block with the RALRM instruction (read additional interrupt info) and in the STEP 7 online help. Diagnostic interrupt The module generates a diagnostic interrupt at the following events: ●...
  • Page 34 Interrupts/diagnostics alarms 5.2 Interrupts Reaction when reaching limits 1 and 2 at the same time If the two high limits 1 and 2 are reached at the same time, the module always signals the hardware interrupt for high limit 1 first. The configured value for high limit 2 is irrelevant. After processing the hardware interrupt for high limit 1, the module triggers the hardware interrupt for high limit 2.

  • Page 35: Diagnostics Alarms

    Interrupts/diagnostics alarms 5.3 Diagnostics alarms Diagnostics alarms A diagnostics alarm is generated and the ERROR LED flashes on the module for each diagnostics event. The diagnostics alarms can be read out in the diagnostics buffer of the CPU, for example. 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.

  • Page 36: Technical Specifications

    Technical specifications Technical specifications of the AI 8xU/I HS Order number 6ES7531-7NF10-0AB0 General information Product type designation AI 8xU/I HS HW functional status FS01 Firmware version V2.1.0 FW update possible • Product function Yes; I&M0 to I&M3 I&M data • Measuring range scalable •...
  • Page 37 Technical specifications Order number 6ES7531-7NF10-0AB0 Power Power available from the backplane bus 1.15 W Power loss Power loss, typ. 3.4 W Analog inputs Number of analog inputs For current measurement • For voltage measurement • permissible input voltage for voltage input (destruction limit), max. 28.8 V permissible input current for current input (destruction limit), max.
  • Page 38 Technical specifications Order number 6ES7531-7NF10-0AB0 Input ranges (rated values), thermocouples Type B • Type C • Type E • Type J • Type K • Type L • Type N • Type R • Type S • Type T • Type TXK/TXK(L) to GOST •...
  • Page 39 Technical specifications Order number 6ES7531-7NF10-0AB0 Pt 50 • Pt 50 according to GOST • Pt 100 • Pt 100 according to GOST • Pt 1000 • Pt 1000 according to GOST • Pt 200 • Pt 200 according to GOST •...
  • Page 40 Technical specifications Order number 6ES7531-7NF10-0AB0 Encoder Connection of signal encoders for voltage measurement • for current measurement as 2-wire transducer • 820 Ω – Burden of 2-wire transmitter, max. for current measurement as 4-wire transducer • for resistance measurement with two-wire connection •...
  • Page 41 Technical specifications Order number 6ES7531-7NF10-0AB0 Diagnostics indication LED Yes; Green LED RUN LED • Yes; Red LED ERROR LED • Yes; Green LED Monitoring of the supply voltage (PWR-LED) • Yes; Green LED Channel status display • Yes; Red LED for channel diagnostics •...

  • Page 42: Dimensional Drawing

    Dimensional drawing This appendix contains the dimensional drawing of the module installed on a mounting rail and with a shield bracket. Always adhere to the specified dimensions for installations in cabinets, control rooms, etc. Figure A-1 Dimensional drawing of the AI 8xU/I HS module Analog Input Module AI 8xU/I HS (6ES7531-7NF10-0AB0) Manual, 12/2016, A5E03484886-AE...
  • Page 43 Dimensional drawing Figure A-2 Dimensional drawing of the AI 8xU/I HS module, side view with open front panel Analog Input Module AI 8xU/I HS (6ES7531-7NF10-0AB0) Manual, 12/2016, A5E03484886-AE...

  • Page 44: Parameter Data Records

    Parameter data records 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.
  • Page 45 0 and 1. You can find additional information in the Interrupts section of the manual for the PROFIBUS DP interface module on the Internet (http://support.automation.siemens.com/WW/view/en/78324181). Assignment of data record and channel For the configuration as a 1 x 8-channel module, the parameters are located in data records 0 to 7 and are assigned as follows: ●...
  • Page 46 Parameter data records B.1 Parameter assignment and structure of the parameter data records Data record structure The figure below shows the structure of data record 0 for channel 0 as an example. The structure is identical for channels 1 to 7. The values in byte 0 and byte 1 are fixed and may not be changed.
  • Page 47 Parameter data records B.1 Parameter assignment and structure of the parameter data records Figure B-2 Structure of data record 0: Bytes 7 to 27 Note • You can only configure the oversampling function with STEP 7 (TIA Portal) via the sampling rate parameter.
  • Page 48 Parameter data records B.1 Parameter assignment and structure of the parameter data records Codes for measuring types The following table lists all measuring types of the analog input module along with their codes. Enter these codes at byte 2 of the respective data record (see previous figure). Table B- 2 Code for the measuring type Measurement type...

  • Page 49: Representation Of Analog Values

    Representation of analog values Introduction This chapter shows the analog values for all measuring ranges supported by the AI 8xU/I HS analog module. Measured value resolution Each analog value is written left aligned to the tags. The bits marked with "x" are set to "0". Table C- 1 Resolution of the analog values Resolution in bits...

  • Page 50: Representation Of Input Ranges

    Representation of analog values C.1 Representation of input ranges Representation of input ranges The following tables set out the digitalized representation of the input ranges by bipolar and unipolar range. The resolution is 16 bits. Table C- 2 Bipolar input ranges Units Measured Data word...

  • Page 51: Representation Of Analog Values In Voltage Measuring Ranges

    Representation of analog values C.2 Representation of analog values in voltage measuring ranges Representation of analog values in voltage measuring ranges The following tables list the decimal and hexadecimal values (codes) of the possible voltage measuring ranges. Table C- 4 Voltage measuring range ±10 V and ±5 V Values Voltage measuring range...

  • Page 52: Representation Of Analog Values In The Current Measuring Ranges

    Representation of analog values C.3 Representation of analog values in the current measuring ranges Representation of analog values in the current measuring ranges The following tables list the decimal and hexadecimal values (codes) of the possible current measuring ranges. Table C- 6 Current measuring range ±20 mA Values Current measuring range...

  • Page 53: Measured Values For Wire Break Diagnostic

    Representation of analog values C.4 Measured values for wire break diagnostic Measured values for wire break diagnostic Measured values on diagnostic event "wire break", dependent on diagnostics enables Error events initiate a diagnostics entry and trigger a diagnostics interrupt if configured accordingly.

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