CPUs-CPU315-2 DP
Overview
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The CPU with medium to large program memory and quantity framework for the use, if required, of SIMATIC Engineering Tools
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High processing performance in binary and floating-point arithmetic
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PROFIBUS DP master/slave interface
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For extensive I/O configurations
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For setting up distributed I/O structures
Micro memory card required for operation of CPU.
Application
The CPU315-2DP is a CPU with medium to large program memory and PROFIBUS DP master/slave interface. It is used in installations which have
distributed automation structures in addition to a centralized I/O.
It is often used as the standard PROFIBUS DP master in SIMATIC S7-300. The CPU is also used as distributed intelligence (DP slave).
It has been optimized in terms of its quantitative framework for using SIMATIC Engineering Tools, e.g.,:
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Programming with SCL
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Sequence control programming with S7-GRAPH
In addition, the CPU offers an ideal platform for simple technology tasks implemented in software, e.g.,:
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Easy Motion Control
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The solution of closed-loop control tasks with STEP 7 blocks or the runtime software Standard/Modular PID Control
Extended process diagnostics can be achieved by using SIMATIC S7-PDIAG.
Design
The CPU315-2DP is equipped with the following:
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Microprocessor;
the processor achieves an execution time of approximately 100 ns per binary instruction and 3 µs per floating-point operation.
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128 KB RAM (corresponds to approx. 43 K statements);
the extensive RAM for execution-related program sections offers sufficient space for user programs. Micro memory cards (8 MB max.) as load
memory for the program also allow the project to be stored in the CPU (complete with symbols and comments) which can be used for data archiving
and recipe management.
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Flexible expansion;
up to 32 modules (4-tier configuration)
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Interface with multipoint capability (MPI);
the integrated MPI interface can establish up to 16 simultaneous connections to S7-300/400 or to PG, PC, OP. Among these connections, one is
always reserved for PG and another for OP. The MPI makes it possible to set up a simple network with a maximum of 16 CPUs via "global data
communication".
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PROFIBUS DP interface
the CPU315-2DP with PROFIBUS DP master/slave interface enables distributed automation configurations with high speed and ease of handling.
From the user's point of view, the distributed I/O is treated as central I/O (same configuring, addressing and programming).
the PROFIBUS DP V1 standard is fully supported. This increases the scope of DP V1 standard slaves in terms of diagnostics and parameterization
capability.
Function
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Password protection;
a password concept protects the user program from unauthorized access.
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Diagnostics buffer;
the last 100 errors and interrupt events are saved in a buffer for diagnostics purposes
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Maintenance-free data backup;
the CPU automatically writes all data to the micro memory card in case of power failure, so that it remains available unchanged when the power is
turned on again.
Configurable attributes
STEP 7 can be used to parameterize both S7 configurations and the properties and responses of the CPUs:
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Interface with multipoint capability (MPI);
definition of node addresses
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Restart/cycle performance characteristics;
determination of the maximum cycle time and load, as well as of the self-testing functions
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Clock bit memory;
address settings
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Protection level;
definition of access authorizations to program and data
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System diagnostics;
definition of the handling and scope of diagnostic messages
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Time interrupts;
periodicity settings
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Time-of-day interrupts;
start date, start time and periodicity settings
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PROFIBUS DP master/slave interface;
free address assignment for distributed I/O
Reporting functions
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Status and fault indicators;
LEDs indicate events such as hardware, programming, timer, I/O, battery or bus errors/faults and operating statuses such as RUN, STOP, startup.
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Testing functions;
you can use the PG to display signal states in program execution, modify process tags irrespective of the user program, and read out the contents of
stack memories.
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Information functions;
you can use the PG to obtain information about the storage capacity and operating mode of the CPU as well as the current loading of work and load
memories, current scan times and diagnostic buffer contents in plain language.
Integrated communication functions
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PG/OP communication
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S7 standard communication
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S7 communication (server only)
System functions
The CPU offers a wide range of system functions for diagnosis, parameterization, synchronization, alarm signaling, time measurement, etc.
For further details, see manual.
Technical specifications
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6ES7 315-2AG10-0AB0
Product version
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Associated programming package
STEP 7 as of 5.1 + SP 4
Supply voltages
Rated value
24 V DC Yes
permissible range, lower limit (DC) 20.4 V
permissible range, upper limit (DC) 28.8 V
Voltages and currents
z External fusing for supply lines (recommendation)
Min. 2 A
Current consumption
z Inrush current, typ.
2.5 A
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I²t
0.5 A²s
z Current consumption (idling), type
60 mA
z from supply voltage L+, max.
800 mA
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Power dissipation, typical
2.5 W
Memory/backup
Memory
z Working memory
integral 128 KByte
expandable No
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Load memory
pluggable (MMC) Yes
pluggable (MMC), max. 8 MByte
Backup
available Yes
CPU/blocks
DB
Number, max. 1,024
Size, max. 16 KByte
FB
Number, max. 2,048
Size, max. 16 KByte
FC
Number, max. 2,048
Size, max. 16 KByte
OB
Size, max. 16 KByte
Nesting depth
per priority class 8
additional levels within an error OB 4
CPU/processing times
z for bit instruction, min.
0.1 µs
z for word instruction, min.
0.2 µs
z for integer math, min.
2 µs
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for floating-point math, min.
3 µs
Timers/counters and their retentive characteristics
S7 counter
Number 256
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of which retentive without battery
adjustable Yes
z Retentivity
adjustable Yes
z Counting range
adjustable Yes
lower limit 0
upper limit 999
IEC counter
available Yes
Type SFB
S7 times
Number 256
z Retentivity
adjustable Yes
preset No retention
z Timing range
lower limit 10 ms
upper limit 9,990 s
IEC timer
available Yes
Type SFB
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Data areas and their retentive characteristics
Flags
Number 2,048 Byte
adjustable retentivity Yes
Number of clock memories 8
Data blocks
Number, max. 1,023
Size, max. 16 KByte
Local data
per priority class, max. 128 Byte
Address area
I/O address area
Inputs 2 KByte
Outputs 2 KByte
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of which distributed
Inputs 2 KByte
Outputs 2 KByte
Process image
Inputs 128 Byte
Outputs 128 Byte
Digital channels
Inputs 16,384
Outputs 16,384
Inputs, of which central 1,024
Outputs, of which central 1,024
Analog channels
Inputs 1,024
Outputs 1,024
Inputs, of which central 256
Outputs, of which central 256
Configuration
z Racks, max.
4
z Modules per rack, max.
8
Number of DP masters
integral 1
via CP 4
Number of FMs and CPs that can be operated (recommendation)
FM 8
CP, point-to-point 8
CP, LAN 10
Time
Clock
Hardware clock (realtime clock) Yes
buffered Yes
Deviation per day, max 10 s
Run-time meter
Quantity 1
Number 0
Range of values 0 to 2^31 hours (when using SFC 101)
Granularity 1 hour
retentive Yes
Time synchronization
supported Yes
on MPI, master Yes
on MPI, slave Yes
in AS, master Yes
S7 message functions
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Number of stations that can log on for message functions, max.
16
z Process diagnostic messages
Yes
z simultaneously active Alarm-S blocks, max.
40
Test and startup functions
Status/modify
Variable Yes
Variables Inputs, outputs, flags, DB, timers, counters
Number of variables, max. 30
of which status variables, max. 30
of which modify variables, max. 14
Forcing
Forcing Yes
Forcing, variables Inputs, outputs
Forcing, number of variables, max. 10
z Status block
Yes
z Single step
Yes
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Number of breakpoints
2
Diagnostic buffer
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available Yes
Number of inputs, max. 100
adjustable No
Communication functions
z PG/OP communication
Yes
z Routing
Yes
Global data communication
supported Yes
Size of GD packets, max. 22 Byte
S7 basic communication
supported Yes
S7 communication
supported Yes
S5 compatible communication
supported Yes
Number of connections
overall 16
usable for PG communication 15
usable for OP communication 15
usable for S7 basic communication 12
usable for routing 4
1st interface
z Type of interface
integrated RS 485 interface
z Physical
RS 485
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Isolated
No
z Power supply to interface (15 to 30 V DC), max.
200 mA
Functionality
MPI Yes
DP master No
DP slave No
Point-to-point connection No
MPI
Number of connections 16
z Services
PG/OP communication Yes
Routing Yes
Global data communication Yes
S7 basic communication Yes
S7 communication Yes
S7 communication, as client No; via CP and loadable FB
S7 communication, as server Yes
Transmission rates, max. 187.5 kBit/s
2nd interface
z Type of interface
integrated RS 485 interface
z Physical
RS 485
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Isolated
Yes
z Power supply to interface (15 to 30 V DC), max.
200 mA
Functionality
MPI No
DP master Yes
DP slave Yes
Point-to-point connection No
DP master
Number of connections, max. 16
z Services
PG/OP communication Yes
Routing Yes
Global data communication No
S7 basic communication No
S7 communication No
S7 communication, as client No
S7 communication, as server No
Equidistance support Yes
SYNC/FREEZE Yes
DPV1 Yes
Transmission rates, max. 12 Mbit/s
Number of DP slaves, max. 124; per station
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Address area
Inputs, max. 244 KByte
Outputs, max. 244 KByte
DP slave
Number of connections 16
z Services
PG/OP communication Yes
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Routing Yes; with active interface
Global data communication No
S7 basic communication No
S7 communication, as client No
S7 communication, as server No
Direct data exchange (lateral communication) Yes
DPV1 No
GSD file http://www.ad.siemens.de/csi_e/support under Product Support
Transmission rates, max. 12 Mbit/s
Automatic baud rates search Yes
z Intermediate memory
Inputs 244 Byte
Outputs 244 Byte
Address areas, max. 32
User data per address area, max. 32 Byte
CPU/ programming
Programming language
STEP 7 Yes; as of V 5.1 SP4
KOP Yes
FUP Yes
AWL Yes
SCL Yes
CFC Yes
GRAPH Yes
HiGraph® Yes
Software library
z Instruction set
See instruction list
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Bracket levels
8
z User program protection/password protection
Yes
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System functions (SFC)
See instruction list
z System function blocks (SFB)
see instruction list
Dimensions and weight
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Width
40 mm
z Height
125 mm
z Depth
130 mm
z Weight, approx.
290 g
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. details, see manual.
Technical specifications
CPUs - CPU 31 5-2 DPCA 01
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6ES7 31 5-2 AG1 0-0 AB0
Product version
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Associated programming. be stored in the CPU (complete with symbols and comments) which can be used for data archiving
and recipe management.
CPUs - CPU 31 5-2 DPCA 01
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