Siemens SIMATIC NET S7-400 Manual
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Siemens SIMATIC NET S7-400 Manual

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SIMATIC NET
S7-400 - Industrial Ethernet
CP 443-1 RNA
Manual
Manual Part B
03/2019
C79000-G8976-C299-04
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Preface
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Application and functions
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Performance data
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Requirements for use
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LEDs
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Installation, connecting up,
commissioning
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Configuration and operation
___________________
Upkeep and maintenance
___________________
Technical specifications
___________________
Approvals
___________________
PRP-compatible devices
___________________
Documentation references
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2
3
4
5
6
7
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9
A
B

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Summary of Contents for Siemens SIMATIC NET S7-400

  • Page 1 ___________________ Preface ___________________ Application and functions ___________________ SIMATIC NET Performance data ___________________ Requirements for use S7-400 - Industrial Ethernet CP 443-1 RNA ___________________ LEDs ___________________ Installation, connecting up, commissioning Manual ___________________ Configuration and operation ___________________ Upkeep and maintenance ___________________ Technical specifications ___________________ Approvals ___________________...
  • Page 2 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 3: Preface

    Preface Legend: ① X = placeholder for hardware product version ② Firmware version ③ LEDs ④ Ethernet interface: Interface X1P1 with 1 x 8-pin RJ-45 jack ⑤ RNA interface: Ports X2P1 / X2P2 with 2 x 8-pin RJ-45 jacks Designed for a redundant subnet ⑥...

  • Page 4: Manual, 03/2019, C79000-G8976-C299

    Current version of the manual and Information on the Internet You will find the current version of this document and further information (e.g. FAQs) on using the CP on the Internet at the following address: Link: (https://support.industry.siemens.com/cs/ww/en/ps/15355) Select the appropriate entry type in the filter settings. CP 443-1 RNA...
  • Page 5 You will find the license conditions on the same data medium as this manual under the following file name: OSS_CP44x1RNA_86.pdf Firmware The firmware is signed and encrypted. This ensures that only firmware created by Siemens can be downloaded to the device. CP 443-1 RNA Manual, 03/2019, C79000-G8976-C299-04...
  • Page 6 Siemens contact. Keep to the local regulations. You will find information on returning the product on the Internet pages of Siemens Industry Online Support: Link: (https://support.industry.siemens.com/cs/ww/en/view/109479891)

  • Page 7: Table Of Contents

    Table of contents Preface ..............................3 Application and functions ........................9 Properties of the CP ........................9 Communication services ......................10 Network topology with redundancy (PRP) ................11 Further services and characteristics of the CP ............... 15 Performance data ..........................17 General characteristic data .....................
  • Page 8 Table of contents Network settings........................42 6.4.1 Reserved MAC address ......................42 6.4.2 Transmission properties of the Ethernet and RNA interfaces ..........42 IP configuration ........................44 6.5.1 Setting the IP address ......................44 6.5.2 Detecting duplicate IP addressing in the network ..............44 Time-of-day synchronization ....................

  • Page 9: Application And Functions

    Application and functions Properties of the CP Application The CP is intended for use in an S7400 or S7400H (faulttolerant) automation system. It allows the S7400 / S7400H to be connected to Industrial Ethernet. The CP has the following interfaces: ●...

  • Page 10: Communication Services

    Application and functions 1.1 Properties of the CP ① Connection to port X1P1 of the Ethernet interface (ISO transport) ② Connection of the RNA interface to a PRP network ③ Connection to port X2P1 of the RNA interface (ISO transport / ISO-on-TCP / TCP) Figure 1-1 CP 443-1 RNA - connection variants Communication services...

  • Page 11: Network Topology With Redundancy (Prp)

    Network topology with redundancy (PRP) Redundant Network Access (RNA) In Siemens Industry, Redundant Network Access (RNA) stands for devices and software that support the redundancy protocol "Parallel Redundancy Protocol" (PRP). RNA allows the connection of devices to redundant Ethernet network structures.
  • Page 12 Application and functions 1.3 Network topology with redundancy (PRP) Some devices of the SCALANCE X-200RNA product line also support the redundancy protocol "High-availability Seamless Redundancy" (HSR). Parallel Redundancy Protocol (PRP) The Parallel Redundancy Protocol (PRP) is a redundancy protocol for Ethernet networks. It is specified in IEC 62439-3.
  • Page 13 Application and functions 1.3 Network topology with redundancy (PRP) PRP communication is handled using the following mechanisms: ● Send An end device with PRP capability duplicates each frame to be sent on the PRP interface. The two duplicates are sent via the 2 ports of the PRP interface via the two separate networks LAN A and LAN B to the communications partner.
  • Page 14 Application and functions 1.3 Network topology with redundancy (PRP) A PRP network can be set up both with end devices with PRP capability as well as with standard components. The following devices can be used: ● End devices with PRP capability (Double Attached Nodes PRP, Double Attached Node implementing PRP, DANP), for example: –...

  • Page 15: Further Services And Characteristics Of The Cp

    Application and functions 1.4 Further services and characteristics of the CP Further services and characteristics of the CP ● Timeofday synchronization over the RNA interface using the following configurable modes: – SIMATIC mode The CP receives MMS timeofday messages and synchronizes its local time. You can choose whether or not the time of day is forwarded.
  • Page 16 Application and functions 1.4 Further services and characteristics of the CP ● Connection diagnostics with the AG_CNTEX program block With the AG_CNTEX program block, you can diagnose connections. – When necessary, you can activate or deactivate connections or initiate reestablishment of a connection. –...

  • Page 17: Performance Data

    Performance data General characteristic data Characteristic Explanation / values Total number of connections on Industrial Ethernet The value applies to the total number of connections of the following types: S7 connections • SEND/RECEIVE connections • Example You can, for example, operate the following combination of connections: ●...

  • Page 18: Send/Receive Interface

    Performance data 2.3 SEND/RECEIVE interface Note Effects of connections in the SPEED SEND/RECV mode Note the effects of connections on the SEND/RECEIVE interface that are used in the SPEED SEND/RECEIVE mode. The maximum configuration limits of S7 communication are reduced by each configured connection using the SPEED SEND/RECV mode.

  • Page 19: Number Of Simultaneous Send/Receive Calls

    Performance data 2.3 SEND/RECEIVE interface Characteristic Explanation / values Maximum data length for AG_LSEND and AG_LSEND and AG_LRECV allow the transfer of user data with the fol- AG_LRECV program blocks lowing lengths: 1. ISO-on-TCP, TCP, ISO transport: 1 to 8192 bytes 2.
  • Page 20 Performance data 2.3 SEND/RECEIVE interface Limitation by the CPU In productive operation, the number of SEND/RECEIVE calls that can be used at one time depends on the CPU resources being used. Note the information on the available CPU resources in section System environment (Page 23). The following CPU resources are required: ●...

  • Page 21: Characteristics Of Open Tcp/Ip Communication

    Performance data 2.4 Characteristics of open TCP/IP communication Table 2- 2 Dependency of the maximum number of RECEIVE calls long (AG_LRECV FC60) used at the same time on the number of SEND calls (CPU 416/417) Number of simultaneous SEND calls Max.
  • Page 22 Performance data 2.5 Characteristic data of TCP connections for HTTP CP 443-1 RNA Manual, 03/2019, C79000-G8976-C299-04...

  • Page 23: Requirements For Use

    Requirements for use Configuration limits When using the CP type described here, the following limits apply: ● Number of operable CPs within a rack: 14 System environment General requirements ● The CP is released with CPUs as of firmware version 5.3.2. –...
  • Page 24 Requirements for use 3.2 System environment Order number of the as of firmware a = multiprocessor mode CPU: 6ES7... version b = number of operable CPs c = CPU resources for SEND/RECEIVE jobs d = LOCK/UNLOCK CPU 414-3 ..414-3XM05-0AB0 V5.3.2 CPU 414-3 PN/DP ..414-3EM05-0AB0 V5.3.2 CPU 414-3 PN/DP ..414-3EM06-0AB0...

  • Page 25: Project Engineering

    You will find information on the current block versions and the current blocks to download from the Internet in our Customer Support under entry ID: Link: (https://support.industry.siemens.com/cs/ww/en/ps/15355/dl) With older module types, this recommendation assumes that you are using the latest firmware for the particular module type.
  • Page 26 Requirements for use 3.4 Programming For fast data transmission up to a data length of 1452 bytes, the SPEED SEND/RECEIVE program blocks AG_SSEND (FC53) and AG_SRECV (FC63) are supported. Functionality Requirement Transfer of data fields <= 240 bytes You require the program blocks AG_SEND (FC5) and •...

  • Page 27: Leds

    LEDs LED display The display on the front panel consists of the following LEDs that indicate the operating mode and communications status. Figure 4-1 LEDs front panel CP 443-1 Advanced The LEDs have the following meaning: ● INTF: Internal error ●...
  • Page 28 LEDs Unlabeled LEDs have no significance (only relevant for diagnostics). INTF EXTF BUSF STOP CP operating mode (red) (red) (red) BUS1F / (green) (yellow) BUS2F (red) Starting up (STOP->RUN) Running (RUN) Stopping (RUN->STOP) Stopped (STOP) In STOP mode, configuring and per- forming diagnostics on the CP remain possible.
  • Page 29 LEDs INTF EXTF BUSF STOP CP operating mode (red) (red) (red) BUS1F / (green) (yellow) BUS2F (red) A duplicate IP address was de- • tected after the CP was in RUN. Difference in the transmission • medium or the duplex settings be- tween the configuration and the actual system Loading using the Firmware Loader is...
  • Page 30 LEDs CP communications status / LED display patterns Display Meaning TXD (green) CP sending over Ethernet. RXD (green) CP is receiving over Ethernet. X1P1 Port has no connection over Ethernet. X2P1 / X2P2 Existing connection over port to Ethernet (LINK status). (green / yellow) LED flashes yellow (constant light green): Port is sending / receiving via Ethernet.

  • Page 31: Installation, Connecting Up, Commissioning

    Installation, connecting up, commissioning Important notes on using the device Safety notices on the use of the device Note the following safety notices when setting up and operating the device and during all associated work such as installation, connecting up or replacing the device. WARNING Safety requirements for installation The devices are "open equipment"...

  • Page 32: Notices On Use In Hazardous Areas According To Atex / Iecex

    Installation, connecting up, commissioning 5.1 Important notes on using the device WARNING Power supply The equipment is designed for operation with Safety Extra-Low Voltage (SELV) by a Limited Power Source (LPS). This means that only SELV / LPS complying with IEC 60950-1 / EN 60950-1 / VDE 0805-1 must be connected to the power supply terminals.

  • Page 33: Notices On Use In Hazardous Areas According To Ul Hazloc

    Installation, connecting up, commissioning 5.2 Installation - procedure WARNING Cable If the cable or conduit entry point exceeds 70 °C or the branching point of conductors exceeds 80 °C, special precautions must be taken. If the equipment is operated in an air ambient in excess of 50 °C, only use cables with admitted maximum operating temperature of at least 80 °C.

  • Page 34: Commissioning - Procedure

    Installation, connecting up, commissioning 5.3 Commissioning - procedure Follow the steps outlined below: 1. Plugging in the CP: Fit the CP onto the rack from the top and push it in at the bottom. The CP can be operated in central or universal racks. Note K bus link When using the universal rack UR1 or UR2 as an expansion rack, a communication bus...

  • Page 35: Replacing A Module Without A Programming Device

    Installation, connecting up, commissioning 5.4 Replacing a module without a programming device Follow the steps outlined below: 1. Download the configuration data from your STEP 7 project to the S7400 station. – Requirement: You have configured the CP in a STEP 7 project for the properties and services you want to use.

  • Page 36: Controlling The Mode

    Installation, connecting up, commissioning 5.5 Controlling the mode Controlling the mode You can change the mode of the CP between RUN and STOP using the STEP 7 configuration software or using STEP 7 special diagnostics. Change from STOP to RUN: The CP loads configured and/or downloaded data into the work memory and then changes to RUN mode.

  • Page 37: Configuration And Operation

    ● Keep the firmware up to date. Check regularly for security updates of the firmware and use them. ● Check regularly for new features on the Siemens Internet pages. – Here you will find information on industrial security: Link: (http://www.siemens.com/industrialsecurity) –...
  • Page 38 Configuration and operation 6.1 Security recommendations Security functions of the product Use the options for security settings in the configuration of the product. These includes among others: ● Protection levels – Configure a protection level of the CPU. – Configure the protection level "Status-dependent". ●...
  • Page 39 Configuration and operation 6.1 Security recommendations ● Make sure that all passwords are protected and inaccessible to unauthorized personnel. See also the preceding section for information on this. ● Do not use one password for different users and systems. Protocols Secure and non-secure protocols ●...

  • Page 40: Switching Over Interfaces

    Configuration and operation 6.2 Switching over interfaces Switching over interfaces The choice of the interface to be used, RNA interface or Ethernet interface is made in the configuration of the CP. Each configuration or changeover of the interface therefore requires that the configuration data is downloaded again.
  • Page 41 Configuration and operation 6.3 Memory reset / reset to factory defaults How to use the functions You can start the memory reset functions in STEP 7. The CP must be in STOP. When you reset memory using special diagnostics, the CP is automatically changed to STOP. ●...

  • Page 42: Network Settings

    Configuration and operation 6.4 Network settings Network settings 6.4.1 Reserved MAC address NOTICE Do not use the MAC address Internally, the CP uses the following reserved MAC address: 00-1B-1B-31-4D-00 Do not use this MAC address for communications partners of the CP, otherwise no communication is possible with the communications partner.
  • Page 43 Configuration and operation 6.4 Network settings STEP 7 special diagnostics and Web diagnostics display the network setting Diagnostics of the port settings for the CP described here is possible using the entries in the diagnostics buffer using SNMP, special diagnostics, and the LED displays. You will find information on the currently used network settings in STEP 7 as follows: ●...

  • Page 44: Ip Configuration

    Configuration and operation 6.5 IP configuration IP configuration 6.5.1 Setting the IP address You can only assign the CP an IP address in the factory settings status. To be able to assign an already configured CP a new IP address using PST or the STEP 7 function "Edit Ethernet node", you will need to reset this to its factory settings.

  • Page 45: Time-Of-Day Synchronization

    Configuration and operation 6.6 Time-of-day synchronization Time-of-day synchronization General rules On the RNA interface, the CP supports the following two modes for timeofday synchronization: ● SIMATIC mode ● NTP mode (NTP: Network Time Protocol) Note No automatic changeover to daylight saving is defined in NTP. As a result, you may need to implement this changeover using a program application.

  • Page 46: Snmp Agent

    For more detailed information on working with MIB files, refer to the documentation of the SNMP client you are using (example of an SNMP client: SNMP OPC server from SIMATIC NET). You will find more information on the MIB on the Internet: Link: (https://support.industry.siemens.com/cs/ww/en/view/15177711) CP 443-1 RNA Manual, 03/2019, C79000-G8976-C299-04...
  • Page 47 Configuration and operation 6.8 SNMP agent Supported MIBs The CP supports the following groups of MIB objects of the standard MIB II according to RFC1213: ● System ● Interfaces ● IP ● ICMP ● TCP ● UDP ● SNMP The other groups of the MIB II standard are not supported: ●...

  • Page 48: Interface In The User Program

    MIB files for your SNMP tools If you use an SNMP tool, you will find the MIB files relevant to the CP in the STEP 7 installation in the following folder: <Drive>\<Installation folder>\Siemens\Step7\S7DATA\snmp\mib There, you will find, for example, the following MIB files: ● automationPS.mib ●...

  • Page 49: Open Tcp/Ip Communication

    Configuration and operation 6.9 Interface in the user program 6.9.2 Open TCP/IP communication Note Validity The information in this section applies only to the RNA interface. To allow the user program to exchange data with other TCP/IPcompliant communications partners, STEP 7 provides a UDT for the connection parameter assignment and four program blocks: ●...

  • Page 50: Ping: Permitted Length Of Icmp Packets

    Configuration and operation 6.10 Ping: Permitted length of ICMP packets 6.10 Ping: Permitted length of ICMP packets Pings with a packet size of more than 1000 bytes are evaluated as an attack and filtered by the CP. This response is intentional and improves the robustness of the CP in an industrial environment.

  • Page 51: Upkeep And Maintenance

    Upkeep and maintenance Loading new firmware Options for a firmware update The following alternative methods can be used to download new firmware to a SIMATIC NET ● Using the firmware loader supplied with STEP 7 Requirement for downloading: – To download firmware, you require an Industrial Ethernet CP module in the PG/PC (for example, CP 1613) or a normal Ethernet module with the "Softnet"...

  • Page 52: Replacing The Modules Used With Cp 443-1 Rna

    Upkeep and maintenance 7.2 Replacing the modules used with CP 443-1 RNA NOTICE Behavior in PRP mode If you start the download, this can lead to a timeout being indicated in PRP mode. In this case, restart the download. You should also refer to the explanation in the section Communication in PRP mode (Page 50) What to do if a download is interrupted Disturbances or collisions on the network can lead to packets being lost.
  • Page 53 Upkeep and maintenance 7.2 Replacing the modules used with CP 443-1 RNA Adapting the configuration 1. In the STEP 7 configuration, replace the already configured CP with the new module; You will find this in the hardware catalog. 2. As soon as you drag the new module from the catalog onto the module you are replacing, the configured connections and data are adopted.
  • Page 54 Upkeep and maintenance 7.2 Replacing the modules used with CP 443-1 RNA CP 443-1 RNA Manual, 03/2019, C79000-G8976-C299-04...

  • Page 55: Technical Specifications

    Technical specifications Technical specifications Attachment to Industrial Ethernet Number 1 x Ethernet interface 1 x RNA interface with 2 ports Design of the Ethernet interface Connector 1 x RJ-45 jacks Transmission speed 10 / 100 Mbps half duplex or full duplex Design of the RNA interface Connector 2 x RJ-45 jacks...
  • Page 56 Technical specifications Technical specifications 0 ... 100 m Max. 100 m IE FC TP Standard Cable with IE FC RJ45 Plug 180 • Max. 90 m IE FC TP Standard Cable + 10 m TP Cord via IE FC RJ45 Outlet •...

  • Page 57: Approvals

    Approvals Approvals issued Note Issued approvals on the type plate of the device The specified approvals apply only when the corresponding mark is printed on the product. You can check which of the following approvals have been granted for your product by the markings on the type plate.
  • Page 58 Approvals Siemens Aktiengesellschaft Division Process Industries and Drives Process Automation DE-76181 Karlsruhe Germany You will find the EC Declaration of Conformity on the Internet at the following address: Link: (https://support.industry.siemens.com/cs/ww/en/ps/15353/cert) > Entry type: "Certificates", certificate type: "EC Declaration of Conformity"...
  • Page 59 You should also note the information in the document "Use of subassemblies/modules in a Zone 2 Hazardous Area" that you will find on the Internet at the following address: Link: (https://support.industry.siemens.com/cs/ww/en/view/78381013) Until 19.04.2016 the CP meets the requirements of the EC Directive:2004/108/EC "Electromagnetic Compatibility”...
  • Page 60 Approvals Applied standard: ● EN 50581:2012 c(UL)us Applied standards: ● Underwriters Laboratories, Inc.: UL 508 Listed (Industrial Control Equipment) ● Canadian Standards Association: CSA C22.2 No. 142 (Process Control Equipment) Report / UL file: E85972 (NRAG, NRAG7) cULus Hazardous (Classified) Locations Underwriters Laboratories, Inc.: cULus IND.
  • Page 61 SIMATIC NET products are regularly submitted to the relevant authorities and approval centers for approvals relating to specific markets and applications. If you require a list of the current approvals for individual devices, consult your Siemens contact or check the Internet pages of Siemens Industry Online Support: Link: (https://support.industry.siemens.com/cs/ww/en/ps/15351/cert)
  • Page 62 Approvals CP 443-1 RNA Manual, 03/2019, C79000-G8976-C299-04...

  • Page 63: Prp-Compatible Devices

    PRP-compatible devices PRP-compatible devices The devices listed below are compatible for use in PRP networks. You can process frames with excess length of up to 1532 bytes (oversize frames). Table A- 1 PRP-compatible devices Product Order number Version * SCALANCE XB004-1, unmanaged IE Switch for 10/100 Mbps 6GK5004-1BD00-1AB2 ES: 01 SCALANCE XB004-1LD, unmanaged IE Switch for 10/100 Mbps...
  • Page 64 PRP-compatible devices Product Order number Version * SCALANCE X204RNA EEC 6GK5204-0BS00-3LA3 V1.0 RuggedCom RS950G, managed PRP Redundancy Box 6GK6095-0GS2-... V3.11.1 RuggedCom RNA Technology Module, managed PRP Redbox SCALANCE XF204-2, flat, managed IE Switch 6GK5204-2BC00-2AF2 V4.4 SCALANCE X204-2LD, managed IE Switch 6GK5204-2BC10-2AA3 V4.4 SCALANCE X206-1, managed IE Switch...
  • Page 65 PRP-compatible devices Product Order number Version * SCALANCE X306-1LDFE , managed IE switch 6GK5306-1BF00-2AA3 V3.7.0 SCALANCE X307-3, managed PLUS IE switch 6GK5307-3BL00-2AA3 V3.7.0 SCALANCE X307-3LD, managed PLUS IE switch 6GK5307-3BM00-2AA3 V3.7.0 SCALANCE X308-2, managed PLUS IE switch 6GK5308-2FL00-2AA3 V3.7.0 SCALANCE X308-2LD, managed PLUS IE switch 6GK5308-2FM00-2AA3 V3.7.0 SCALANCE X308-2LH, managed PLUS IE switch...
  • Page 66 PRP-compatible devices Product Order number Version * CP 343-1 6GK7343-1EX30-0XE0 V2.4 CP 343-1 Advanced 6GK7343-1GX30-0XE0 V1.2 CP 343-1 Advanced 6GK7343-1GX31-0XE0 V3.0 CP 443-1 Advanced 6GK7443-1GX20-0XE0 V2.1 CP 443-1 Advanced 6GK7443-1GX30-0XE0 V3.0 CP 443-1 6GK7443-1EX20-0XE0 V2.1 CP 443-1 6GK7443-1EX30-0XE0 V3.0 CP 443-1 RNA 6GK7443-1RX00-0XE0 V1.0 CP 442-1 RNA...

  • Page 67: Documentation References

    Introduction to the documentation Where to find Siemens documentation ● Article numbers You will find the article numbers for the Siemens products of relevance here in the following catalogs: – SIMATIC NET - Industrial Communication / Industrial Identification, catalog IK PI –...

  • Page 68: For Configuration With Step 7 / Ncm S7

    B.3 For configuration with STEP 7 / NCM S7 For configuration with STEP 7 / NCM S7 B.3.1 SIMATIC NET Commissioning PC Stations - Manual and Quick Start Configuration Manual Siemens AG Link: (https://support.industry.siemens.com/cs/ww/en/ps/15362/man) B.3.2 SIMATIC Configuring Hardware and Connections with STEP 7 Siemens AG Part of the documentation package "STEP 7 Basic Knowledge"...

  • Page 69: B.4.3 /6

    Documentation references B.4 On programming (S7 CPs / OPC) B.4.3 SIMATIC Programming with STEP 7 Siemens AG (Part of the STEP 7 documentation package STEP 7 Basic Knowledge) (Part of the online documentation in STEP 7) Link: (https://support.industry.siemens.com/cs/ww/en/view/18652056) B.4.4 SIMATIC...

  • Page 70: S7 Cps On Installing And Commissioning The Cp

    B.5 S7 CPs On installing and commissioning the CP S7 CPs On installing and commissioning the CP B.5.1 /10/ SIMATIC S7 Automation System S7-400, M7-400 Siemens AG ● Installation: Installation manual Link: (https://support.industry.siemens.com/cs/ww/en/view/1117849) ● Module Data: Reference Manual Link: (https://support.industry.siemens.com/cs/ww/en/view/1117740) ● CPU data: Device Manual Link: (https://support.industry.siemens.com/cs/ww/en/view/53385241)

  • Page 71: Index

    Index " "Interfaces" MIB group, 47 Fault-tolerant system, 9, 16 FETCH/WRITE, 10 Access coordination, 4 Access permissions using community name, 48 Autocrossing mechanism, 42 Glossary, 6 Autocrossover, 9 Automatic setting or individual network settings, 42 Autonegotiation, 9, 43 H communication, 23 H system, 16, 16 Change from RUN to STOP, 36 High communications load, 45...
  • Page 72 Index Module access protection, 15 Module identification S5/S7 addressing mode, 16 In STEP 7, 30 S7 connections, 17 In Web diagnostics, 30 Number, 17 Module identification - make the port LEDs flash S7-400, 9 briefly, 30 S7-400H, 9 Module replacement without PG, 35 Safety notices, 31 Multicast, 10 SEND/RECEIVE calls, 19...

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