S7_300Compact
description
Transcript of S7_300Compact
SIMATIC S7-300 compact CPUs
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Totally Integrated Automation
SIMATIC S7-300 Compact The powerful compact mini PLC
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SIMATIC S7-300 compact CPUs
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Overview
CPU 312CCPU 313CCPU 313C-2 PtPCPU 313C-2 DP
CPU 314C-2 DP
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Highlights
Smaller dimensions (installation width)
Integral functions Counting/measuring
PID control, positioning
Integral I/O Digital
Analog
Shorter instruction execution times
Integral communications interfaces Low-cost PROFIBUS-DP master
Intelligent slave for distributed pre-processing
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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 DP313C-2 PtP
314C-2 DP314C-2 PtP
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Dimensions and design
312C
80 mm
313C
120 mm
313C-2 PtP313C-2 DP
120 mm 120 mm
314C-2 PtP314C-2 DP
Max. design:
Onboard I/Os:
Integral interfaces:
125 mm
DI/DO DI/DO + AI/AO DI/DO DI/DO + AI/AO
MPI MPI MPI + PtP/DP MPI + PtP/DP
1 tier 4 tiers 4 tiers 4 tiers
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Product range
Work memoryin KB
Integral I/O
Integral technologyfunctions
Interfaces except MPI
Design
CPU 313C
32
Digital,analog
Counting,PID control
---
4-tier
CPU 312C
16
Digital
Counting
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1-tier
CPU 313C-2PtP
32
Digital
Counting,PID control
PtP
4-tier
CPU 313C-2DP
32
Digital
Counting,PID control
DP
4-tier
CPU 314C-2DP
48
Digital,analog
Counting,PID control,position.DP
4-tier
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Memory & performance
Main memory
Statements
Loading memory
Instruction runtime
Alarm response time
Bit memories
Timers / counters
Address space I/O
No. of digital channels
No. analog chann. I/O
312C
16 KB
5 k
Plug-in 64k-4MB
Min. 0.2 µs
800 µs
1024
128 / 128
1024 / 1024 byte
266
64 / 32
313C 314C
32 KB
10 k
Plug-in 64k-4MB
Min. 0.1 µs
400 µs
2048
256 / 256
1024 / 1024 byte
1000
248 / 124
48 KB
16 k
Plug-in 64k-4MB
Min. 0.1 µs
400 µs
2048
256 / 256
1024 / 1024 byte
1000
248 / 124
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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
Number of DIs
Number of DOs
Number of AIs
Number of AOs
312C
10
6
-/-
-/-
314C313C 313C-2 PtP / DP
24 16
16 16
4+1* -/-
2 -/-
313C314C-2 PtP / DP
24
16
4+1*
2
* Additional input for resistance measurement
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Integral digital I/Os
Rated voltage
Permissible range
Current range
Input delay
Switch-off delay
Electrical isolation from backplane bus
Groups of
Max. frequency
Digitalinputs
DC 24 V
DC 20.4 - 28.8 V
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0.1/0.5/3/15 ms
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Yes
16
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Digitaloutputs
DC 24 V
DC 20.4 - 28.8 V
0.5 A
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2 ms
Yes
8
100 Hz
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Integral analog I/Os
Measuring ranges
Voltage
Current
Resolution
Filter (50/60 Hz)
Input delay
Output delay
Electrical isolation from backplane bus
Analoginputs
±10 V; 0 - 10 V
±20 mA; 0/4-20 mA
11 bits + sign
Selectable
5 ms
---
Yes
Analogoutputs
±10 V; 0 - 10 V
±20 mA; 0/4-20 mA
11 bits + sign
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1.2 ms
Yes
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Summary of Technology functions
Counting
Connectable sources
Number of channels
Cut-off frequency
Frequency measurem.
PWM
Number of outputs
Cut-off frequency
Positioning
Control
312C
Incremental encoder, pulse generator with direction signal
2
10 kHz
Yes
2
2.5 kHz
No
-
313C 314C
Incremental encoder, pulse generator with direction signal
3
30 kHz
Yes
3
2.5 kHz
No
PID
Incremental encoder, pulse generator with direction signal
4
60 kHz
Yes
4
2.5 kHz
1 axis
PID
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Integral counters
Integral counters in all compact CPUs Recording of pulse and incremental encoder
signals (DC 24V)
Forward/reverse with reference values whichcan 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
t
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PWM outputs
U
t
Pulse outputs on all compact CPUs 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 (depending on CPU)
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Simple motion controlwithout 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
t
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Summary of communications
312C313C
313C-2 PtP314C-2 DP313C-2 DP
MPI
Point-to-point
PROFIBUS-DPFast, cyclic data exchange
High data security
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
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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)
Low-cost communication without additional hardware
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Point-to-point interface (RS422/485)Connection of non-system components
CPU 313C-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)
PCs, computers,programming devices
SIMATIC S5
Robotcontrols
Scanners,bar code readers,ID systems
Weighing systems,controllers
Opto electronicsS7-300 S7-300 C
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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 stationsto master interface
Max. distance 23 km using FO
Communications functions:
All programming device/OP functions PROFIBUS-DP
PG
No additional module or software required!
PROCES S FIELD BUS
SIEMENS
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New memory functions
All compact CPUs with MMC slot
Simple program update via micro memory card (MMC)
Project storage (symbols, comments) on the CPU
Access to MMC in RUN Archive measured values ( SFC 41 / SFC 42 )
Recipes
Backup of program and data without battery
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Programming
Programming with STEP 7 Lite the new programming package for basic functions in simple stand-alone applications
Features of STEP 7-Lite Intuitive operation means it can be learned quickly
Simpler project handling (project = CPU)
Migration, that is, data transfer to STEP 7 possible
Programming with STEP 7 the familiar tool for all functions and all applications
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Compatibility
Compatibility within S7-300 Expansion using any modules
(SMs, FMs, CPs)
Support for module replacement in STEP 7’s hardware configuration
Programs of previous CPUs will run on compact CPUs
Compatibility with STEP 7 Programming from Version 5.1, SP 2
Portability to S5 Porting of existing programs from S5
to S7 (Converter)
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Customer benefits (1)
Space savings Compact design
Many additional modules become superfluous
Competitive advantage Shorter instruction execution times
reduce machine cycle times
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Customer benefits (2)
Reduction in acquisition costs Integral functions (I/O, interfaces, technology functions)
make many modules superfluous
Reduction in operating costs Service made simpler thanks to project storage on the CPU
No maintenance costs since there is no battery
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The universal mini PLC for system solutions focussing on the manufacturing industry
Totally IntegratedAutomation
withSIMATICS7-300
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