SIMATIC S7-1500 Analog input module AI 8xU/I HS (6ES7531-7NF10-0AB0) Manual Edition 07/2014 Answers for industry.
Analog Input Module AI 8xU/I HS ___________________ Preface (6ES7531-7NF10-0AB0) 1 ___________________ Documentation guide SIMATIC S7-1500/ET 200MP Analog Input Module AI 8xU/I HS (6ES7531-7NF10-0AB0) Manual 2 ___________________ Product overview 3 ___________________ Wiring 4 ___________________ Parameters/address space 5 ___________________ Interrupts/diagnostics alarms 6 ___________________ Technical specifications A ___________________ Dimensional drawing B ___________________ Parameter data record
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Preface Purpose of the documentation This manual supplements the system manuals: ● S7-1500 Automation System ● ET 200MP Distributed I/O 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.
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Table of contents Preface ................................................................................................................................................... 3 1 Documentation guide .............................................................................................................................. 6 2 Product overview .................................................................................................................................... 8 2.1 Properties ............
1 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. Basic information 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.
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.
2 Product overview 2.
Product overview 2.
Product overview 2.1 Properties 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 must be ordered separately: Front connectors, including potential jumpers and cable ties You can find more information on accessories in the S7-1500 Automation System system manual (http://support.
3 Wiring The section below includes the block diagram of the module and various wiring options. For more information on front connector wiring and creating cable shields, for example, refer to the "Wiring" section in the S7-1500 Automation System (http://support.automation.siemens.com/WW/view/en/59191792) and ET 200MP Distributed I/O System (http://support.automation.siemens.com/WW/view/en/59193214) system manuals. Note You may use and combine the different wiring options for all channels.
Wiring 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.
Wiring Block diagram and pin assignment for voltage measurement The example in the figure below shows the pin assignment for a voltage measurement.
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.
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.
4 Parameters/address space 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.
Parameters/address space 4.2 Parameters 4.2 Parameters Parameters of the AI 8xU/I HS 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.
Parameters/address space 4.3 Declaration of parameters Parameters Range of values Default setting Parameter assignment in RUN Scope with configuration software, e.g.
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. Is valid for each signal change at the analog input.
Parameters/address space 4.4 Address space 4.4 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. When you configure the module by means of the GSD file, the configurations are available under different abbreviations/module names.
Parameters/address space 4.4 Address space Address space of AI 8xU/I HS 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. "IB x", for example represents the module start address input byte x.
Parameters/address space 4.4 Address space Address space for configuration as 8 x 1-channel 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. The submodules can be assigned to different IO controllers when the module is used in a shared device. The number of usable submodules is dependent on the interface module used. Observe the information in the manual for the particular interface module.
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. 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.
Parameters/address space 4.4 Address space The following figure shows the assignment of the address space with submodules 1 and 2.
Parameters/address space 4.4 Address space The following figure shows the assignment of the address space with submodules 3 and 4.
5 Interrupts/diagnostics alarms 5.1 Status and error displays LED displays The following figure shows the LED displays (status and error displays) of AI 8xU/I HS.
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 LED Meaning RUN ERROR Off Off Voltage missing or too low at backplane bus. Flashes Off The module starts and flashes until the valid parameter assignment is set.
Interrupts/diagnostics alarms 5.1 Status and error displays CHx LED Table 5- 3 CHx status display LED CHx Meaning Remedy Channel disabled --- Channel configured and OK. --- Channel is configured (channel error pending). Diagnostic alarm: e.g. wire break Disable diagnostics. Off On On Check the wiring.
Interrupts/diagnostics alarms 5.2 Interrupts 5.2 Interrupts Analog input module AI 8xU/I HS supports the following diagnostic and hardware interrupts.
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. The module has the same reaction when the low limits are reached at the same time.
Interrupts/diagnostics alarms 5.3 Diagnostics alarms 5.3 Diagnostics alarms A diagnostics alarm is output for each diagnostics event and the ERROR LED flashes on the module. The diagnostics alarms can, for example, be read from 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.
6 Technical specifications Technical specifications of the AI 8xU/I HS 6ES7531-7NF10-0AB0 Product type designation General information Hardware version Firmware version Product function I&M data Engineering with STEP 7 TIA Portal can be configured/integrated as of version STEP 7 can be configured/integrated as of version Operating mode MSI Supply voltage Type of supply voltage Rated value (DC) Valid range, low limit (DC) Valid range, high limit (DC) Reverse polarity protection Input current AI 8xU/I HS
Technical specifications 6ES7531-7NF10-0AB0 Input ranges (rated values), voltages 1 V to 5 V Yes Input resistance (1 V to 5 V) 50 kΩ -10 V to +10 V Yes Input resistance (-10 V to +10 V) 100 kΩ -5 V to +5 V Yes Input resistance (-5 V to +5 V) 50 kΩ Input ranges (rated values), currents 0 mA to 20 mA Yes Input resistance (0 mA to 20 mA) 41 Ω; (plus approx. 42 ohm for overvoltage protection by PTC) -20 mA to +20 mA Yes Input resistance (-20 mA to +20 mA) 41 Ω; (plus approx.
Technical specifications 6ES7531-7NF10-0AB0 Operational limit in overall temperature range Voltage, relative to input range ± 0.3 % Current, relative to input range ± 0.3 % Basic error limit (operational limit at 25 °C) Voltage, relative to input range ± 0.2 % Current, relative to input range ± 0.2 % Interference voltage suppression for f = n x (f1 +/1 %), f1 = interference frequency Common mode voltage, max. 10 V Common mode interference, min.
Technical specifications 6ES7531-7NF10-0AB0 Ambient conditions Operating temperature Horizontal mounting position, min. 0 °C Horizontal mounting position, max. 60 °C Vertical mounting position, min. 0 °C Vertical mounting position, max. 40 °C Distributed mode Prioritized startup No Dimensions Width 35 mm Height 147 mm Depth 129 mm Weights Weight, approx.
A 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.
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, 07/2014, A5E03484886-AC 37
B Parameter data records 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.
Parameter data records B.1 Parameter assignment and structure of the parameter data records 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.
Parameter data records B.1 Parameter assignment and structure of the parameter data records Data record structure The example in the following figure shows the structure of data record 0 for channel 0. The structure of channels 1 to 7 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".
Parameter data records B.
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).
Parameter data records B.
C 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".
Representation of analog values C.1 Representation of input ranges C.1 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 Units Bipolar input ranges Measured value in % Data word Range 215 214 213 212 211 210 29 28 27 26 25 24 23 22 21 20 32767 >117.589 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Overflow 32511 117.
Representation of analog values C.2 Representation of analog values in voltage measuring ranges C.2 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 Range dec hex ±10 V ±5 V 32767 7FFF >11.759 V >5.879 V Overflow 32511 7EFF 11.759 V 5.
Representation of analog values C.3 Representation of analog values in the current measuring ranges C.3 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 dec hex ±20 mA 32767 7FFF >23.52 mA Overflow 32511 7EFF 23.
Representation of analog values C.4 Measured values for wire break diagnostic C.4 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.
Open Source Software D 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.
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