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Preface
Guide to the S7-300
1
documentation
Operating and display
2
elements
SIMATIC
3
Communication
S7-300
CPU 31xC and CPU 31x,
4
Memory concept
Technical data
5
Cycle and reaction times
Manual
6
Technical data of CPU 31xC
7
Technical data of CPU 31x
A
Appendix
This manual is part of the documentation package
with the order number: 6ES7398-8FA10-8BA0
Edition 08/2004
A5E00105475-05
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Safety Guidelines This manual contains notices which you should observe to ensure your own personal safety as well as to avoid property damage. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring to property damage only have no safety alert symbol. Danger indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Warning indicates a potentially hazardous situatio
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Preface Purpose of the Manual This manual contains all the information you will need concerning the configuration, communication, memory concept, cycle, response times and technical data for the CPUs. You will then learn the points to consider when upgrading to one of the CPUs discussed in this manual. Required basic knowledge • To understand this manual, you require a general knowledge of automation engineering. • You should also be accustomed to working with STEP 7 basic software. A
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Preface Note There you can obtain the descriptions of all current modules. For new modules, or modules of a more recent version, we reserve the right to include a Product Information containing latest information. Approvals The SIMATIC S7-300 product series has the following approvals: • Underwriters Laboratories, Inc.: UL 508 (Industrial Control Equipment) • Canadian Standards Association: CSA C22.2 No. 142, (Process Control Equipment) • Factory Mutual Research: Approval Standar
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Preface Documentation classification This manual is part of the S7-300 documentation package. Name of the manual Description YOU ARE READING the Manual Control and display elements, communication, memory concept, cycle and response times, • CPU 31xC and CPU 31x, Technical data technical data Reference Manual Control and display elements, communication, memory concept, cycle and response times, • CPU data: CPU 312 IFM – 318-2 DP technical data Operating Instructions Configuration,
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Preface Additional information required: Name of the manual Description Reference Manual Description of the SFCs, SFBs and OBs. System software for S7-300/400 system and standard This manual is part of the STEP 7 functions documentation package. For further information, refer to the STEP 7 Online Help. Manual Description of Industrial Ethernet networks, network configuration, SIMATIC NET: Twisted Pair and Fiber-Optic Networks components, installation guidelines for networked aut
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Table of contents Preface......................................................................................................................................................iii 1 Guide to the S7-300 documentation ....................................................................................................... 1-1 2 Operating and display elements ............................................................................................................. 2-1 2.1 Operating and displ
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Table of contents 4 Memory concept ..................................................................................................................................... 4-1 4.1 Memory areas and retentivity..................................................................................................... 4-1 4.1.1 CPU memory areas.................................................................................................................... 4-1 4.1.2 Retentivity of the load memory, sys
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Table of contents 6.5 CPU 314C-2 PtP and CPU 314C-2 DP ................................................................................... 6-21 6.6 Technical data of the integrated I/O......................................................................................... 6-28 6.6.1 Arrangement and usage of integrated I/Os.............................................................................. 6-28 6.6.2 Analog I/O .....................................................................
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Table of contents Tables Table 1-1 Application area covered by this manual ...................................................................................... iii Table 1-1 Ambient influence on the automation system (AS).................................................................... 1-1 Table 1-2 Galvanic isolation ....................................................................................................................... 1-1 Table 1-3 Communication between sensors/actua
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Table of contents Table 4-1 Retentivity of the RAM ............................................................................................................... 4-2 Table 4-2 Retentive behavior of memory objects (applies to all CPUs with DP/MPI-SS (31x-2 PN/DP) .. 4-3 Table 4-3 Retentive behavior of DBs for CPUs with firmware >= V2.1.0 .................................................. 4-4 Table 4-4 Address areas of system memory ...........................................................
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Table of contents Table 7-1 Available MMCs ......................................................................................................................... 7-2 Table 7-2 Maximum number of loadable blocks on the MMC.................................................................... 7-2 Table 7-3 Technical data for the CPU 312................................................................................................. 7-3 Table 7-4 Technical data for the CPU 314.................
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1 Guide to the S7-300 documentation Overview There you find a guide leading you through the S7-300 documentation. Selecting and configuring Table 1-1 Ambient influence on the automation system (AS) Information on.. is available in ... What provisions do I have to make for AS installation S7-300, CPU 31xC and CPU 31x operating instructions: space? Installation: Configuring - Component dimensions S7-300, CPU 31xC and CPU 31x operating instructions: Installation: Mounting - Installing th
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Guide to the S7-300 documentation Table 1-3 Communication between sensors/actuators and the PLC Information on.. is available in ... Which module is suitable for my sensor/actuator? For CPU: CPU 31xC and CPU 31x Manual, Technical Data For signal modules: Reference manual of your signal module How many sensors/actuators can I connect to the module? For CPU: CPU 31xC and CPU 31x Manual, technical data of signal modules: Reference manual of your signal module To connect my sensors/actua
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Guide to the S7-300 documentation Table 1-6 CPU performance Information on.. is available in ... Which memory concept is best suited to my application? CPU 31xC and CPU 31x Manual, Technical Data How do I insert and remove Micro Memory Cards? S7-300, CPU 31xC and CPU 31x operating instructions: Installation: Commissioning – Commissioning modules – Removing / inserting a Micro Memory Card (MMC) Which CPU meets my demands on performance? S7-300 instruction list: CPU 31xC and CPU 31x Le
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Guide to the S7-300 documentation Table 1-9 Supplementary features Information on.. is available in ... How to implement monitor and modify functions For text-based displays: The relevant Manual (Human Machine Interface) For Operator Panels: The relevant Manual For WinCC: The relevant Manual How to integrate process control modules For PCS7: The relevant Manual What options are offered by redundant and fail-safe S7-400H Manual – Redundant Systems systems? Fail-Safe Systems Manual In
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2 Operating and display elements 2.1 Operating and display elements: CPU 31xC Operating and display elements of CPU 31xC 1 2 3 SF BF DC5V MMC FRCE RUN STOP RUN STOP MRES 7 6 X1 X2 5 X11 X12 4 The figures show the following CPU elements (1) Status and error displays (2) Slot for the Micro Memory Card (MMC), incl. the ejector (3) Connections of the integrated I/O. (4) Power supply connection (5) 2. Interface X2 (PtP or DP) (6) 1. Interface X1 (MPI) (7) Mode selector switch CPU 3
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Operating and display elements 2.1 Operating and display elements: CPU 31xC The figure below illustrates the integrated digital and analog I/Os of the CPU with open front covers. X11 X12 SF BF DC5V FRCE RUN STOP 1 2 2 3 RUN STOP MRES 1 2 3 Figure 2-1 Integrated I/Os of CPU 31xC (CPU 314C-2 PtP, for example) The figure shows the following integrated I/Os (1) Analog I/Os (2) each with 8 digital inputs (3) each with 8 digital outputs Slot for the SIMATIC Micro Memory Card (MMC) A S
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Operating and display elements 2.1 Operating and display elements: CPU 31xC Mode selector switch Use the mode selector switch to set the CPU operating mode. Table 2-1 Positions of the mode selector switch Position Meaning Description RUN RUN mode The CPU executes the user program. STOP STOP mode The CPU does not execute a user program. MRES CPU memory Mode selector switch position with pushbutton function for CPU reset memory reset. A CPU memory reset by means of mode selector switch
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Operating and display elements 2.1 Operating and display elements: CPU 31xC 2.1.1 Status and Error Indicators: CPU 31xC LED designation Color Meaning SF red Hardware or software error BF (for CPUs with DP red Bus error interface only) DC5V green 5-V power for CPU and S7-300 bus is OK FRCE yellow Force job is active RUN green CPU in RUN The LED flashes during STARTUP at a rate of 2 Hz, and in HOLD state at 0.5 Hz. STOP yellow CPU in STOP and HOLD or STARTUP The LED flashes at 0.5
