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SIEMENS S7-300c.ppt

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An overview of SIEMENS S7-300 C series PLC.

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SIEMENS S7-300c.ppt

  1. 1. Automation and Drives Totally Integrated Automation SIMATIC S7-300 The universal, small control system supplemented by new, compact CPUs S7-300 Compact A&D BD/AS, Slide 1
  2. 2. Automation and Drives SIMATIC S7-300 in the system family Upper and mid performance range S7-400 Lower and mid performance range S7-300 Bottom performance range S7-200 + Programming devices + STEP 7 software + Communication + HMI S7-300 - the universal, small control system for versatile applications in automation engineering S7-300 Compact A&D BD/AS, Slide 2 Overview Comparison I/O‘s Process Functions Communication MMC
  3. 3. Automation and Drives The new S7-300 compact CPUs A strong team  3 basic types: With different memory sizes and performances 312C: 16 Kbyte 313C: 32 Kbyte 314C: 48 Kbyte  The versions differ with respect to - I/Os - Onboard interfaces - Process functions 312C 313C 313C-2 DP 313C-2 PtP 314C-2 PtP 314C-2 DP S7-300 Compact A&D BD/AS, Slide 3 Overview Comparison I/O‘s Process Functions Communication MMC
  4. 4. Automation and Drives Dimensions and design 125 mm Onboard I/Os: Integral interfaces: Max. design: 312C 80 mm DI/DO MPI 1 tier 313C 120 mm DI/DO + AI/AO MPI 4 tiers 313C-2 PtP 313C-2 DP 314C-2 PtP 314C-2 DP 120 mm 120 mm DI/DO MPI + PtP/DP 4 tiers DI/DO + AI/AO MPI + PtP/DP 4 tiers S7-300 Compact A&D BD/AS, Slide 4 Overview Comparison I/O‘s Process Functions Communication MMC
  5. 5. Automation and Drives Memory, performance and quantity breakdown Overview Comparison I/O‘s Process Functions Communication MMC 312C 313C 314C Main memory 16 kB 32 kB 48 kB Statements 5 k 10 k 16 k Loading memory plug-in 64k-4MB plug-in 64k-4MB plug-in 64k-4MB Instruction runtime min. 0.2 μs min. 0.1 μs min. 0.1 μs Alarm response time 800 μs 400 μs 400 μs Bit memories 1024 2048 2048 Timers / counters 128 / 128 256 / 256 256 / 256 Address space I/O 1024 / 1024 byte 1024 / 1024 byte 1024 / 1024 byte No. of digital channels 266 1000 1000 No. analog chann. I/O 64 / 64 248 / 248 248 / 248 S7-300 Compact A&D BD/AS, Slide 5
  6. 6. Automation and Drives Integral I/Os - summary  Low-cost onboard I/O channels for universal use  Every digital input can be used as an alarm input  Analog inputs can also be used as digital inputs * Additional input for resistance measurement S7-300 Compact A&D BD/AS, Slide 6 Overview Comparison I/O‘s Process Functions Communication MMC 312C 313C 314C 313C 313C-2 PtP / DP 314C-2 PtP / DP Number of DIs 10 24 16 24 Number of DOs 6 16 16 16 Number of AIs -/- 4 + 1* -/- 4 + 1* Number of AOs -/- 2 -/- 2
  7. 7. Automation and Drives Integral digital I/Os S7-300 Compact A&D BD/AS, Slide 7 Overview Comparison I/O‘s Process Functions Communication MMC Digital inputs Digital outputs Rated voltage DC 24 V DC 24 V Permissible range DC 20.4 - 28.8 V DC 20.4 - 28.8 V Current range --- 0.5 A Input delay 0.1/0.5/3/15 ms --- Switch-off delay --- 2 ms Electrical isolation from yes yes backplane bus Groups of 16 8 Max. frequency --- 100 Hz
  8. 8. Automation and Drives Integral analog I/Os S7-300 Compact A&D BD/AS, Slide 8 Overview Comparison I/O‘s Process Functions Communication MMC Analog inputs Analog outputs Measuring ranges Voltage ±10V; 0..10V ±10V; 0..10V Current ±20mA; 0/4..20mA ±20mA; 0/4..20mA Resolution 11 bits+sign 11 bits+sign Filter (50/60 Hz) selectable --- Input delay 5 ms --- Output delay --- 1,2 ms Electrical isolation from yes yes backplane bus
  9. 9. Automation and Drives Summary of process functions S7-300 Compact A&D BD/AS, Slide 9 Overview Comparison I/O‘s Process Functions Communication MMC 312C 313C 314C Counting Connectable sources Incremental encoder, pulse generator with direction signal Incremental encoder, pulse generator with direction signal Incremental encoder, pulse generator with direction signal Number of channels 2 3 4 Cut-off frequency 10 kHz 30 kHz 60 kHz Frequency measurem. yes yes yes PWM Number of outputs 2 3 4 Cut-off frequency 2.5 kHz 2.5 kHz 2.5 kHz Positioning no no 1 axis Control - PID PID
  10. 10. Automation and Drives Integral counters  Integral counters in all compact CPUs - Recording of pulse and incremental encoder signals (DC 24V) - Forward/reverse with reference values which can be changed during operation - 10 - 60 kHz (depending on CPU)  Various operating modes possible - Single counting (e.g. filling, dosing) - Periodic counting (e.g. recording of angle) - Counting with gate control (e.g. length measurement)  Frequency measurement - Counting with fixed time base S7-300 Compact A&D BD/AS, Slide 10 t Overview Comparison I/O‘s Process Functions Communication MMC
  11. 11. Automation and Drives PWM outputs - Direct control of valves, actuators, switchgear, heaters etc. (DC 24 V/ 0.5 A) - Period and pulse/pause ratio can be changed during operation - 2.5 kHz switching frequency, up to 4 outputs U t  Pulse outputs on all compact CPUs (depending on CPU) S7-300 Compact A&D BD/AS, Slide 11 Overview Comparison I/O‘s Process Functions Communication MMC
  12. 12. Automation and Drives Simple motion control without additional components  Low-price  Since no additional modules required  Optimum memory requirements and runtime  No additional programming requirements since function is component of operating system  Flexible  Parameters (delay, acceleration etc.) can be changed for each travel  Various operating modes selectable: absolute or relative positioning, inching etc.  Simple  Prepared functionality can be linked into application program using standard blocks v S7-300 Compact A&D BD/AS, Slide 12 t Overview Comparison I/O‘s Process Functions Communication MMC
  13. 13. Automation and Drives Summary of communications 312C 313C-2 PtP 313C 314C-2 PtP 313C-2 DP 314C-2 DP MPI Point-to-point PROFIBUS DP Interface present on all CPUs - networking of CPU, programming device and OPs Low-cost communications without additional HW - extremely simple configuring Communication with up to 7 OPs simultaneously (depending on type of CPU) Serial onboard interface Data exchange e.g. with devices from other vendors Fast, cyclic data exchange High data security S7-300 Compact A&D BD/AS, Slide 13 Overview Comparison I/O‘s Process Functions Communication MMC
  14. 14. Automation and Drives On every CPU: multipoint interface MPI  Data exchange: 187.5 kbit/s  Up to 32 bus stations, up to 12 active connections per CPU  Communications functions: - Programming device/operator panel functions - Global data communications without programming input - S7 basic communication up to 76 byte - S7 communication (only server) S7-300 Compact A&D BD/AS, Slide 14 Overview Comparison I/O‘s Process Functions Communication MMC  Low-cost communication without additional hardware
  15. 15. Automation and Drives Point-to-point interface (RS422/485) Connection of non-system components  CPU 313C-2 PtP / 314C-2 PtP  Transmission physics: - RS 422/485 (X.27) - Transmission rate: up to 19.2 / 38.4 kbit/s (half duplex/full duplex)  Protocols: - ASCII - 3964(R) - RK 512 - (only 314C-2 PtP) PCs, computers, programming devices Opto electronics S7S-370-03 00 C SIMATIC S5 Robot controls Scanners, bar code readers, ID systems Weighing systems, controllers S7-300 Compact A&D BD/AS, Slide 15 Overview Comparison I/O‘s Process Functions Communication MMC
  16. 16. Automation and Drives CPU 313C-2 DP, 314C-2 DP, integral PROFIBUS-DP  Versatile use: master or slave function  Data exchange at 12 Mbit/s  Up to 32 DP stations to master interface  Max. distance 23 km using FO  Communications functions: - All programming device/OP functions - PROFIBUS-DP PG P R O C E S S F IE L D B U S SIEMENS S7-300 Compact A&D BD/AS, Slide 16 Overview Comparison I/O‘s Process Functions Communication MMC  No additional module or software required!
  17. 17. Automation and Drives SIMATIC Micro Memory Card Many functions - small format  Can be used in every S7-300 compact CPU  Functions as program memory, non-volatile and resistant to overall reset; transportable for simple program updating  Functions as loading memory - flexible as result of selectable MMC sized between 64kB and 4MB  Permits project storage on CPU - save your complete project on the MMC  Access to the MMC during RUN mode of CPU - Load data into CPU (recipe) - Write data onto MMC (archive)  MMC buffers your data in the main memory in event of power failure no backup battery required MMC is required to operate the compact CPUs S7-300 Compact A&D BD/AS, Slide 17 Overview Comparison I/O‘s Process Functions Communication MMC
  18. 18. Automation and Drives The universal, small control system with emphasis on production engineering Totally Integrated Automation with SIMATIC S7-300 S7-300 Compact A&D BD/AS, Slide 18

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