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

Technology module, tm posinput 2 6es7551-1ab00-0ab0
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  • Page 2 ___________________ Preface ___________________ Documentation guide ___________________ SIMATIC Product overview ___________________ Wiring S7-1500/ET 200MP Technology module TM PosInput 2 ___________________ (6ES7551-1AB00-0AB0) Configuring/address space ___________________ Interrupts/diagnostic messages Manual ___________________ Technical specifications ___________________ Dimensional drawing ___________________ Parameter data record 06/2018 A5E03982218-AB...
  • 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 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 ..............................3 Documentation guide ..........................7 Product overview ..........................11 Properties ..........................11 Functions ..........................14 2.2.1 Acquisition of encoder signals ....................14 2.2.1.1 Position input with SSI absolute encoder ................14 2.2.1.2 Counting with incremental or pulse encoder ................16 2.2.2 Measured value determination ....................
  • Page 7 Table of contents 4.3.4 Address space ........................64 4.3.5 Control and feedback interface ....................65 4.3.5.1 Assignment of the control interface..................65 4.3.5.2 Assignment of the feedback interface ..................68 4.3.6 Isochronous mode ......................... 72 Interrupts/diagnostic messages ......................73 Status and error display ......................73 Diagnostic alarms........................

  • Page 8: Documentation Guide

    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. 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.
  • Page 9 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 (https://support.industry.siemens.com/cs/ww/en/view/86140384).
  • Page 10 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).
  • Page 11 You can find SIEMENS PRONETA on the Internet (https://support.industry.siemens.com/cs/ww/en/view/67460624). SINETPLAN SINETPLAN, the Siemens Network Planner, supports you in planning automation systems and networks based on PROFINET. The tool facilitates professional and predictive dimensioning of your PROFINET installation as early as in the planning stage. In addition, SINETPLAN supports you during network optimization and helps you to exploit network resources optimally and to plan reserves.

  • Page 12: Product Overview

    Product overview Properties Article number 6ES7551-1AB00-0AB0 Firmware version This manual describes the properties of the module with firmware version V1.3. View of the module Figure 2-1 View of the TM PosInput 2 module Technology module TM PosInput 2 (6ES7551-1AB00-0AB0) Manual, 06/2018, A5E03982218-AB...
  • Page 13 Product overview 2.1 Properties Properties The TM PosInput 2 technology module has the following properties: ● Technical properties – Two channels – Interfaces: SSI encoder signals D und C or RS422/TTL encoder signals A, B and N 5 V and 24 V encoder supply, short-circuit-proof DI0 and DI1 digital input signals (per channel) DQ0 and DQ1 digital output signals (per channel) Supply voltage L+...
  • Page 14 The following component needs to be ordered separately: ● Front connectors, including potential jumpers and cable ties You can find information on the front connector in system manual S7-1500 / ET 200MP Automation System (http://support.automation.siemens.com/WW/view/en/59191792), section "Accessories". Technology module TM PosInput 2 (6ES7551-1AB00-0AB0)

  • Page 15: Functions

    Product overview 2.2 Functions Functions 2.2.1 Acquisition of encoder signals 2.2.1.1 Position input with SSI absolute encoder You can use the TM PosInput 2 technology module with an SSI absolute encoder for position detection. The technology module reads the position via a synchronous, serial interface from the SSI absolute encoder and sends it to the controller.
  • Page 16 Product overview 2.2 Functions Measuring input If you use Position input for Motion Control (Page 18), you can use the "Measuring input" technology object to execute a measuring input function with a hardware digital input. Hardware interrupts The technology module can trigger a hardware interrupt in the CPU when a comparison event, zero crossing and/or direction reversal occurs.

  • Page 17: Counting With Incremental Or Pulse Encoder

    Product overview 2.2 Functions 2.2.1.2 Counting with incremental or pulse encoder Counting is the detecting and adding up of events. The counters of the technology module detect encoder signals and pulses and evaluate them accordingly. The count direction can be specified using encoder or pulse signals or through the user program. You can control the counting processes with the digital inputs.

  • Page 18: Measured Value Determination

    Product overview 2.2 Functions 2.2.2 Measured value determination The following high-accuracy measurement functions are available (accuracy up to 100 ppm): ● Frequency measurement with the unit of hertz ● Period measurement with the unit of seconds ● Velocity measurement with a flexibly adaptable unit ●...

  • Page 19: Position Input For Motion Control

    You can find a detailed description of the use of Motion Control and its configuration in the following: ● Function manual S7-1500 Motion Control available for download on the Internet (https://support.industry.siemens.com/cs/ww/en/view/59381279) ● Function manual S7-1500T Motion Control available for download on the Internet (https://support.industry.siemens.com/cs/ww/en/view/109481326)

  • Page 20: Additional Functions

    Product overview 2.2 Functions 2.2.5 Additional functions Synchronization for incremental and pulse encoder You can configure the edge of an external reference signal that loads the counter with the specified start value. The following external signals can trigger a synchronization: ●...

  • Page 21: Wiring

    You can find information on wiring the front connector, shielding the cable, etc., in system manual S7-1500 / ET 200MP Automation System (http://support.automation.siemens.com/WW/view/en/59191792), section Wiring. Supply voltage L+/M You connect the supply voltage to terminals L+ (terminal 41/42) and M (terminal 43/44). An internal protection circuit protects the technology module from reverse polarity of the supply voltage.
  • Page 22 Wiring Digital inputs DI0 and DI1 The digital inputs are used for gate control, synchronization and the Capture function. The digital inputs of the two channels are not isolated from one another. Input delay for digital inputs You can use this parameter to suppress signal noise at the digital inputs of a channel. Changes to the signal are only detected if they remain stable for longer than the configured input delay time.

  • Page 23: Ssi Encoder Signals

    Wiring 3.1 SSI encoder signals SSI encoder signals SSI encoder signals The TM PosInput 2 can process SSI encoder signals. These are designated with data and clock and use the RS422 signal standard. An RS422 encoder signal uses a pair of wires and the information is transmitted as differential voltage.
  • Page 24 Wiring 3.1 SSI encoder signals Block diagram You must ground the shields of the cables between encoder and technology module both through the shield support at the front connector (shield bracket and terminal) and at the encoder. The figure below shows the block diagram of the technology module with one connected SSI absolute encoder.

  • Page 25: Rs422 Encoder Signals

    Wiring 3.2 RS422 encoder signals RS422 encoder signals RS422 encoder signals/count signals The TM PosInput 2 can process encoder signals that use the RS422 signal standard. These counting encoder signals are designated with the letters A, B and N. An RS422 encoder signal uses a pair of wires and the counter information is transmitted as differential voltage.
  • Page 26 Wiring 3.2 RS422 encoder signals Pin assignment for the front connector The table below shows the pin assignment of the front connector. Table 3- 2 Pin assignment of the front connector View Signal name Designation RS422 incremental en- RS422 pulse encoder coder with without...
  • Page 27 Wiring 3.2 RS422 encoder signals View Signal name Designation RS422 incremental en- RS422 pulse encoder coder with without with direction without direc- signal N signal N signal tion signal Down Channel 1 +CH1.A/D Encoder signal +A Counting signal +A Up counting signal +A -CH1.A/D Encoder signal -A...
  • Page 28 Wiring 3.2 RS422 encoder signals Block diagram You must ground the shields of the cables between encoder and technology module both through the shield support at the front connector (shield bracket and terminal) and at the encoder. The figure below shows the block diagram of the technology module with one connected RS422 incremental encoder.

  • Page 29: Ttl Encoder Signals

    Wiring 3.3 TTL encoder signals TTL encoder signals TTL encoder signals/counting signals The TM PosInput 2 can process encoder signals that use the TTL signal standard. The counting encoder signals are designated with the letters A, B and N. An encoder signal with TTL standard uses a single cable.
  • Page 30 Wiring 3.3 TTL encoder signals Pin assignment for the front connector The table below shows the pin assignment of the front connector. Table 3- 3 Pin assignment of the front connector View Signal name Designation TTL incremental encoder TTL pulse encoder with without with direction...
  • Page 31 Wiring 3.3 TTL encoder signals View Signal name Designation TTL incremental encoder TTL pulse encoder with without with direction without direc- signal N signal N signal tion signal Down Channel 1 +CH1.A/D Encoder signal A Counting signal A Up counting signal A -CH1.A/D —...
  • Page 32 Wiring 3.3 TTL encoder signals Block diagram You must ground the shields of the cables between encoder and technology module both through the shield support at the front connector (shield bracket and terminal) and at the encoder. The figure below shows the block diagram of the technology module with one connected TTL incremental encoder.

  • Page 33: Configuring/Address Space

    ● Function manual Counting, Measurement and Position Detection available for download on the Internet (http://support.automation.siemens.com/WW/view/en/59709820) ● Information system of STEP 7 (TIA Portal) under "Using technology functions > Counting, measurement and position input > Counting, measurement and position input (S7-1500)"...

  • Page 34: Reaction To Cpu Stop

    Configuring/address space 4.1 Operating with "Counting and measurement" technology object 4.1.2 Reaction to CPU STOP Reaction to CPU STOP You set the reaction of the technology module to a STOP of the CPU on a channel-by- channel basis in the basic parameters of the device configuration. Table 4- 1 Reaction of technology module to CPU STOP Option...

  • Page 35: Parameter Setting

    You can find information on configuring with a technology object in function manual Counting, Measurement and Position Detection (http://support.automation.siemens.com/WW/view/en/59709820). 4. Open the configuration of the respective technology object, e.g. using the Configuration button in the respective instruction for the technology object.

  • Page 36: Parameters (Ssi Absolute Encoder)

    Configuring/address space 4.1 Operating with "Counting and measurement" technology object 4.1.3.1 Parameters (SSI absolute encoder) Parameters of the TM PosInput 2 with SSI absolute encoder The following parameter settings are possible in the hardware configuration: Table 4- 2 Settable parameters and their default setting (SSI absolute encoder) Parameter Value range Default setting...
  • Page 37 Configuring/address space 4.1 Operating with "Counting and measurement" technology object The following parameter settings are possible in the technology object: Table 4- 3 Settable parameters and their default setting (SSI absolute encoder) Parameter Value range Default setting Parameter Scope reassign- HSP for STEP 7 ment in (TIA Portal)
  • Page 38 Configuring/address space 4.1 Operating with "Counting and measurement" technology object Parameter Value range Default setting Parameter Scope reassign- HSP for STEP 7 ment in (TIA Portal) Edge selection for DI At rising edge Channel At rising edge • At falling edge •...
  • Page 39 You can find a detailed description of the parameters in function manual Counting, Measurement and Position Detection in sections Basic parameters and Configuring the SSI_Absolute_Encoder available for download on the Internet (http://support.automation.siemens.com/WW/view/en/59709820). Technology module TM PosInput 2 (6ES7551-1AB00-0AB0) Manual, 06/2018, A5E03982218-AB...

  • Page 40: Parameters (Incremental Or Pulse Encoder)

    Configuring/address space 4.1 Operating with "Counting and measurement" technology object 4.1.3.2 Parameters (incremental or pulse encoder) Parameters of the TM PosInput 2 with incremental or pulse encoder The following parameter settings are possible in the hardware configuration: Table 4- 4 Settable parameters and their default setting (incremental or pulse encoder) Parameter Value range...
  • Page 41 Configuring/address space 4.1 Operating with "Counting and measurement" technology object The following parameter settings are possible in the technology object: Table 4- 5 Settable parameters and their default setting (incremental or pulse encoder) Parameter Value range Default setting Parameter Scope reassign- HSP for STEP 7 ment in...
  • Page 42 Configuring/address space 4.1 Operating with "Counting and measurement" technology object Parameter Value range Default setting Parameter Scope reassign- HSP for STEP 7 ment in (TIA Portal) Reaction to violation of a Continue counting Yes Channel Stop counting • counting limit Continue counting •...
  • Page 43 You can find a detailed description of the parameters in function manual Counting, Measurement and Position Detection in sections Basic parameters and Configuring the High_Speed_Counter available for download on the Internet (http://support.automation.siemens.com/WW/view/en/59709820). Technology module TM PosInput 2 (6ES7551-1AB00-0AB0) Manual, 06/2018, A5E03982218-AB...

  • Page 44: Address Space

    Configuring/address space 4.1 Operating with "Counting and measurement" technology object 4.1.4 Address space Address space of the technology module Table 4- 6 Size of input and output addresses of the TM PosInput 2 when operating with "Counting and measurement" technology object Inputs Outputs Size per channel...
  • Page 45 You can find a detailed description of isochronous mode in the following: ● Function manual Isochronous Mode (STEP 7 (TIA Portal) V15.1 or higher) available for download on the Internet (https://support.industry.siemens.com/cs/ww/en/view/109755401) ● Function manual PROFINET with STEP 7 available for download on the Internet (https://support.industry.siemens.com/cs/ww/en/view/49948856)

  • Page 46: Position Input For ""Motion Control"" Technology Object

    ● Function manual Counting, Measurement and Position Detection available for download on the Internet (http://support.automation.siemens.com/WW/view/en/59709820) ● Information system of STEP 7 (TIA Portal) under "Using technology functions > Counting, measurement and position input > Counting, measurement and position input (S7-1500)"...

  • Page 47: Parameter Setting

    "Technology objects > Add new object > Motion Control" . You can find information on configuring with axis technology objects in function manual S7-1500T Motion Control (https://support.industry.siemens.com/cs/ww/en/view/109481326). 4. Open the configuration of the axis technology object, e.g. using the Configuration button in the respective instruction for the technology object.

  • Page 48: Parameters (Ssi Absolute Encoder)

    Configuring/address space 4.2 Position input for ""Motion Control"" technology object 4.2.2.1 Parameters (SSI absolute encoder) Parameters of the TM PosInput 2 with SSI absolute encoder The following parameter settings are possible: Table 4- 7 Settable parameters and their default setting (SSI absolute encoder) Parameter Value range Default setting...
  • Page 49 You can find a detailed description of the parameters in function manual Counting, Measurement and Position Detection, section Module parameters (position input for Motion Control) available for download on the Internet (http://support.automation.siemens.com/WW/view/en/59709820). Technology module TM PosInput 2 (6ES7551-1AB00-0AB0) Manual, 06/2018, A5E03982218-AB...

  • Page 50: Parameters (Incremental Or Pulse Encoder)

    Configuring/address space 4.2 Position input for ""Motion Control"" technology object 4.2.2.2 Parameters (incremental or pulse encoder) Parameters of the TM PosInput 2 with incremental or pulse encoder The following parameter settings are possible: Table 4- 8 Settable parameters and their default setting (incremental or pulse encoder) Parameter Value range Default setting...

  • Page 51: Address Space

    You can find a detailed description of the parameters in function manual Counting, Measurement and Position Detection, section Module parameters (position input for Motion Control) available for download on the Internet (http://support.automation.siemens.com/WW/view/en/59709820). 4.2.3 Address space Address space of the technology module Table 4- 9 Size of input and output addresses of the TM PosInput 2 with position input for "Motion...

  • Page 52: Isochronous Mode

    You can find a detailed description of isochronous mode in the following: ● Function manual Isochronous Mode (STEP 7 (TIA Portal) V15.1 or higher) available for download on the Internet (https://support.industry.siemens.com/cs/ww/en/view/109755401) ● Function manual PROFINET with STEP 7 available for download on the Internet (https://support.industry.siemens.com/cs/ww/en/view/49948856)

  • Page 53: Manual Operation (Without Technology Object)

    Configuring/address space 4.3 Manual operation (without technology object) Manual operation (without technology object) 4.3.1 Configuring Introduction You configure the technology module and assign its parameters with the configuration software. The functions of the technology module are controlled and checked by the user program via the control and feedback interface.
  • Page 54 ● Function manual Counting, Measurement and Position Detection available for download on the Internet (http://support.automation.siemens.com/WW/view/en/59709820) ● Information system of STEP 7 (TIA Portal) under "Using technology functions > Counting, measurement and position input > Counting, measurement and position input (S7-1500)"...

  • Page 55: Reaction To Cpu Stop

    Configuring/address space 4.3 Manual operation (without technology object) 4.3.2 Reaction to CPU STOP Reaction to CPU STOP You set the reaction of the technology module to a STOP of the CPU on a channel-by- channel basis in the basic parameters of the device configuration. Table 4- 10 Reaction of technology module to CPU STOP Option...

  • Page 56: Parameter Setting

    2. Set the parameters in the hardware configuration. You can find information on the respective dependencies of the parameters in function manual Counting, Measurement and Position Detection (http://support.automation.siemens.com/WW/view/en/59709820). The parame- ters marked with in the following tables are not configurable in the PROFIBUS GSD file.

  • Page 57: Parameters (Ssi Absolute Encoder)

    Configuring/address space 4.3 Manual operation (without technology object) 4.3.3.1 Parameters (SSI absolute encoder) Parameters of the TM PosInput 2 with SSI absolute encoder The following parameter settings are possible: Table 4- 11 Settable parameters and their default setting (SSI absolute encoder) Parameter Value range Default setting...
  • Page 58 Configuring/address space 4.3 Manual operation (without technology object) Parameter Value range Default setting Parameter Scope reassign- HSP for STEP 7 ment in (TIA Portal); GSD file Transmission rate 125 kHz Channel 125 kHz • 250 kHz • 500 kHz • 1 MHz •...
  • Page 59 Configuring/address space 4.3 Manual operation (without technology object) Parameter Value range Default setting Parameter Scope reassign- HSP for STEP 7 ment in (TIA Portal); GSD file Set output DQ0, DQ1: Channel Use by user program • Between compari- Between comparison value •...
  • Page 60 Explanation of parameters You can find a detailed description of the parameters in function manual Counting, Measurement and Position Detection, sections Basic parameters and Manual operation available for download on the Internet (http://support.automation.siemens.com/WW/view/en/59709820). Technology module TM PosInput 2 (6ES7551-1AB00-0AB0) Manual, 06/2018, A5E03982218-AB...

  • Page 61: Parameters (Incremental Or Pulse Encoder)

    Configuring/address space 4.3 Manual operation (without technology object) 4.3.3.2 Parameters (incremental or pulse encoder) Parameters of the TM PosInput 2 with incremental or pulse encoder The following parameter settings are possible: Table 4- 12 Settable parameters and their default setting (incremental or pulse encoder) Parameter Value range Default setting...
  • Page 62 Configuring/address space 4.3 Manual operation (without technology object) Parameter Value range Default setting Parameter Scope reassign- HSP for STEP 7 ment in RUN (TIA Portal); GSD file Hardware interrupt: Zero Deactivated Channel Deactivated • crossing Activated • Hardware interrupt: Com- Deactivated Channel Deactivated...
  • Page 63 Configuring/address space 4.3 Manual operation (without technology object) Parameter Value range Default setting Parameter Scope reassign- HSP for STEP 7 ment in RUN (TIA Portal); GSD file Frequency of Capture func- Once Channel Once • tion Periodic • Interface standard RS422, symmetrical Yes Channel RS422, symmetrical...
  • Page 64 Configuring/address space 4.3 Manual operation (without technology object) Parameter Value range Default setting Parameter Scope reassign- HSP for STEP 7 ment in RUN (TIA Portal); GSD file Input delay for digital in- 0.1 ms Channel None • puts 0.05 ms •...

  • Page 65: Address Space

    Explanation of parameters You can find a detailed description of the parameters in function manual Counting, Measurement and Position Detection, sections Basic parameters and Manual operation available for download on the Internet (http://support.automation.siemens.com/WW/view/en/59709820). 4.3.4 Address space Address space of the technology module...

  • Page 66: Control And Feedback Interface

    Configuring/address space 4.3 Manual operation (without technology object) 4.3.5 Control and feedback interface Note The control and feedback interface is compatible with the control and feedback interface of the TM PosInput 1, TM Count 2x24V and TM Count 1x24V technology modules of the S7-1500 automation system.
  • Page 67 Configuring/address space 4.3 Manual operation (without technology object) Explanations Control bit/value Explanations EN_CAPTURE Use this bit to enable the Capture function. Resetting this bit resets a set EVENT_CAP in the feedback interface. EN_SYNC_DN Use this bit to enable the synchronization of the counter when counting in downward direction with an incremental encoder or pulse encoder.
  • Page 68 Configuring/address space 4.3 Manual operation (without technology object) Control bit/value Explanations SW_GATE Use this bit to open and close the software gate when using an incremental encoder or pulse encoder. Together, the software gate and the hardware gate form the internal gate. The tech- nology module only counts when the internal gate is open.

  • Page 69: Assignment Of The Feedback Interface

    Configuring/address space 4.3 Manual operation (without technology object) 4.3.5.2 Assignment of the feedback interface The user program receives current values and status information from the technology module by means of the feedback interface. Feedback interface per channel The following table shows the assignment of the feedback interface: Byte offset Bit 7...
  • Page 70 Configuring/address space 4.3 Manual operation (without technology object) Explanations Feedback bit/value Explanations CAPTURED_VALUE This DINT value indicates the last acquired Capture value. The following external signals can trigger the Capture function: Rising or falling edge of a digital input • Both edges of a digital input •...
  • Page 71 Configuring/address space 4.3 Manual operation (without technology object) Feedback bit/value Explanations LD_ERROR This bit indicates that an error occurred (latching) during loading via the control interface. The load- ed values were not applied. When using an incremental or pulse encoder, one of the following con- ditions is not fulfilled: Low counting limit <= counter value <= high counting limit •...
  • Page 72 Configuring/address space 4.3 Manual operation (without technology object) Feedback bit/value Explanations STS_DIR This bit indicates the count direction of the last count pulse or the direction of the last position value change. 0 means: Down • 1 means: Up • STS_DQ0 This bit indicates the status of digital output DQ0.

  • Page 73: Isochronous Mode

    You can find a detailed description of isochronous mode in the following: ● Function manual Isochronous Mode (STEP 7 (TIA Portal) V15.1 or higher) available for download on the Internet (https://support.industry.siemens.com/cs/ww/en/view/109755401) ● Function manual PROFINET with STEP 7 available for download on the Internet (https://support.industry.siemens.com/cs/ww/en/view/49948856)

  • Page 74: Interrupts/Diagnostic Messages

    Interrupts/diagnostic messages Status and error display LEDs The following figure shows you the LED displays (status and error displays) of TM PosInput 2. Figure 5-1 LED displays of the TM PosInput 2 Technology module TM PosInput 2 (6ES7551-1AB00-0AB0) Manual, 06/2018, A5E03982218-AB...
  • Page 75 Interrupts/diagnostic messages 5.1 Status and error display 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 (Page 76). Table 5- 1 Status and error displays RUN/ERROR/MAINT LEDs Meaning...
  • Page 76 Interrupts/diagnostic messages 5.1 Status and error display Channel LEDs The CHn.A, CHn.B, CHn.N and DIn.m LEDs indicate the current level of the associated signals. The LEDs of the DQn.m digital outputs indicate the desired state. The flashing frequency of the channel LEDs is limited to approximately 12 Hz. If higher frequencies are present, the channel LEDs will flash at 12 Hz instead of indicating the current status.

  • Page 77: Diagnostic Alarms

    Interrupts/diagnostic messages 5.2 Diagnostic alarms Diagnostic alarms Enabling of diagnostic interrupts You enable the diagnostic interrupts in the device configuration with the basic parameters. The technology module can trigger the following diagnostic interrupts: Table 5- 4 Possible diagnostic interrupts Diagnostic interrupt Monitoring Monitoring is always active.
  • Page 78 "RALRM" (Read additional alarm information), in the information system of STEP 7 and in function manual Diagnostics (https://support.industry.siemens.com/cs/ww/en/view/59192926), section "System diagnostics in user program". If the module is operated as a distributed module with PROFIBUS DP in an ET 200MP system, you have the option of reading out diagnostic data with the RDREC or RD_REC instruction using data record 0 and 1.
  • Page 79 Interrupts/diagnostic messages 5.2 Diagnostic alarms Diagnostic alarms The display of diagnostics is in plain text in STEP 7 (TIA Portal) in the online and diagnostics view. You can evaluate the error codes with the user program. The following diagnostics can be signaled: Table 5- 5 Diagnostic alarms, their meaning and remedies Diagnostic alarm...
  • Page 80 Interrupts/diagnostic messages 5.2 Diagnostic alarms Diagnostic alarm Error Meaning Remedy code Invalid transition of A/B Time profile of signals A and B of the Check process wiring • • signals incremental encoder does not meet Check encoder/sensor • certain requirements (relative phase Check parameter assignment •...

  • Page 81: Hardware Interrupts

    Interrupts/diagnostic messages 5.3 Hardware interrupts Hardware interrupts Introduction For the technology module, you can configure which events are to trigger a hardware interrupt during operation. What is a hardware interrupt? The technology module will trigger a hardware interrupt as configured in response to specific events/states.
  • Page 82 Interrupts/diagnostic messages 5.3 Hardware interrupts You can activate any combination of events to trigger hardware interrupts. You can obtain detailed information on the event in the hardware interrupt organization block with instruction "RALRM" (Read additional alarm information) and in the information system of STEP 7.

  • Page 83: Technical Specifications

    Technical specifications Article number 6ES7551-1AB00-0AB0 General information Product type designation TM PosInput 2 Firmware version V1.3 FW update possible • Product function Yes; I&M0 to I&M3 I&M data • Engineering with GSD Revision 5 PROFIBUS as of GSD version/GSD revision •...
  • Page 84 Technical specifications Article number 6ES7551-1AB00-0AB0 Address area Occupied address area 16 byte; Per channel Inputs • 12 byte; per channel; 4 bytes for Motion Control Outputs • Digital inputs Number of digital inputs 4; 2 per channel Digital inputs, parameterizable Input characteristic curve in accordance with IEC 61131, type 3 Digital input functions, parameterizable...
  • Page 85 Technical specifications Article number 6ES7551-1AB00-0AB0 Digital outputs Type of digital output Transistor Number of digital outputs 4; 2 per channel Digital outputs, parameterizable Short-circuit protection Yes; electronic/thermal Response threshold, typ. • Limitation of inductive shutdown voltage to L+ (-33 V) Controlling a digital input Digital output functions, parameterizable Switching tripped by comparison values...
  • Page 86 Technical specifications Article number 6ES7551-1AB00-0AB0 Encoder signals, incremental encoder (symmetrical) RS 422 Input voltage • 1 MHz Input frequency, max. • 4 MHz; with quadruple evaluation Counting frequency, max. • 32 m; at 1 MHz Cable length, shielded, max. • Signal filter, parameterizable •...
  • Page 87 Technical specifications Article number 6ES7551-1AB00-0AB0 Encoder signals, absolute encoder (SSI) to RS-422 Input signal • 10 ... 40 bit Telegram length, parameterizable • 2 MHz; 125 kHz, 250 kHz, 500 kHz, 1 MHz, 1.5 MHz or Clock frequency, max. • 2 MHz Binary code •...
  • Page 88 Technical specifications Article number 6ES7551-1AB00-0AB0 Diagnostics indication LED Yes; Green LED RUN LED • Yes; Red LED ERROR LED • Yes; yellow LED MAINT LED • Yes; Green LED Monitoring of the supply voltage (PWR-LED) • Yes; Green LED Channel status display •...
  • Page 89 40 °C; Please note derating for inductive loads vertical installation, max. • Decentralized operation to SIMATIC S7-300 to SIMATIC S7-400 to SIMATIC S7-1200 to SIMATIC S7-1500 to standard PROFIBUS master to standard PROFINET controller Technology module TM PosInput 2 (6ES7551-1AB00-0AB0) Manual, 06/2018, A5E03982218-AB...
  • Page 90 Technical specifications Article number 6ES7551-1AB00-0AB0 Dimensions Width 35 mm Height 147 mm Depth 129 mm Weights Weight, approx. 325 g Technology module TM PosInput 2 (6ES7551-1AB00-0AB0) Manual, 06/2018, A5E03982218-AB...
  • Page 91 Technical specifications Derating information for total current of outputs If the digital outputs of the TM PosInput 2 are operated with inductive loads, you should derate the total current of the loads at the digital outputs of the respective channel. The total current is the sum of the load currents at all digital outputs of a channel (without encoder supply).

  • Page 92: Dimensional Drawing

    Dimensional drawing The dimensional drawing of the module on the mounting rail, as well as a dimensional drawing with open front panel, are provided in the appendix. Always observe the specified dimensions for installation in cabinets, control rooms, etc. Figure A-1 Dimensional drawing of the TM PosInput 2 technology module Technology module TM PosInput 2 (6ES7551-1AB00-0AB0) Manual, 06/2018, A5E03982218-AB...
  • Page 93 Dimensional drawing Figure A-2 Dimensional drawing of the TM PosInput 2 module, side view with open front panel Technology module TM PosInput 2 (6ES7551-1AB00-0AB0) Manual, 06/2018, A5E03982218-AB...

  • Page 94: Parameter Data Record

    Parameter data record Parameter assignment and structure of parameter data record You have the option of reassigning module parameters with the user program while the CPU is in RUN. The parameters are transferred to the module using data record 128, e.g. with the WRREC instruction.
  • Page 95 Parameter data record B.1 Parameter assignment and structure of parameter data record Table B- 1 Data record 128: Operating modes "Operating with "Counting and measurement" technology object", "Manual operation (without technology object)" Bit → Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2...
  • Page 96 Parameter data record B.1 Parameter assignment and structure of parameter data record Bit → Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Byte channel ↓ 6...7/ Counter inputs (parameters for incremental and pulse encoders) 54...55 6/54 Reserved...
  • Page 97 Parameter data record B.1 Parameter assignment and structure of parameter data record Bit → Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Byte channel ↓ 6...7/ Counter inputs (parameters for SSI absolute encoder) 54...55 6/54 Monoflop time...
  • Page 98 Parameter data record B.1 Parameter assignment and structure of parameter data record Bit → Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Byte channel ↓ 10...15/ Behavior of a DQ 58...63 10/58 Set output (DQ1): Set output (DQ0): 0000...
  • Page 99 Parameter data record B.1 Parameter assignment and structure of parameter data record Bit → Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Byte channel ↓ 17/65 Behavior of DI1: See Byte 16 18/66 Reserved 19/67...
  • Page 100 Parameter data record B.1 Parameter assignment and structure of parameter data record Bit → Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Byte channel ↓ 45/93 Specify measured value 45/93 Reserved Time base for velocity measurement: Measured variable: : 1 ms : Frequency...

  • Page 101: Parameter Validation Error

    Parameter data record B.2 Parameter validation error Parameter validation error If you make the parameter settings in STEP 7 (TIA Portal) or in STEP 7 , the parameter values are checked before they are transferred to the technology module. This process prevents parameter errors.
  • Page 102 Parameter data record B.2 Parameter validation error Error codes The following table shows the module-specific error codes and their meaning for parameter data record 128 when using an incremental or pulse encoder. Table B- 2 Error codes for parameter validation (incremental or pulse encoder) Error code in STATUS parame- Meaning Remedy...
  • Page 103 Parameter data record B.2 Parameter validation error Error code in STATUS parame- Meaning Remedy ter (hexadecimal) Byte 0 Byte 1 Byte 2 Byte 3 Low counting limit > comparison value 0 Low counting limit < comparison value 0 • • Low counting limit >...
  • Page 104 Parameter data record B.2 Parameter validation error The following table shows the module-specific error codes and their meaning for parameter data record 128 when using an SSI absolute encoder. Table B- 3 Error codes for parameter validation (SSI absolute encoder) Error code in STATUS parame- Meaning Remedy...
  • Page 105 Parameter data record B.2 Parameter validation error Error code in STATUS parame- Meaning Remedy ter (hexadecimal) Byte 0 Byte 1 Byte 2 Byte 3 "Between comparison value 0 and 1" con- Configure "Between comparison value 0 and 1" • • figured for DQn.0 only for DQn.1 "Not between comparison value 0 and 1"...

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