SIEMENS SIMATIC S7-1500 Fail-safe CPUs CPU 1515F-2 PN Overview/Design

CPU 1515F-2 PN

  • The CPU for applications with medium to high requirements for program/data storage in the S7-1500 controller product range
  • Can be used for failsafe functions up to SIL 3 according to IEC 61508 and up to PLe according to ISO 13849.
  • Medium to high processing speed for binary and floating-point arithmetic
  • Used as central controller in production lines with central and distributed I/O
  • Supports PROFIsafe in centralized and distributed configurations
  • PROFINET IO IRT interface with 2-port switch
  • Additional PROFINET interface with separate IP address
  • PROFINET IO Controller for operating distributed I/O on PROFINET
  • PROFINET I-Device for connecting the CPU as an intelligent PROFINET device under a SIMATIC or non-Siemens PROFINET I/O controller
  • Isochronous mode
  • Integrated Motion Control functionalities for controlling speed-controlled and positioning axes, support for external encoders
  • Integrated web server with the option of creating user-defined web pages

Note

SIMATIC Memory Card required for operation of the CPU

Product No. / Product Description

SIMATIC S7-1500 CPU 1515F-2 PN Ordering data

6ES7515-2FM01-0AB0
SIMATIC S7-1500F, CPU 1515F-2 PN, CENTRAL PROCESSING UNIT WITH WORKING MEMORY 750 KB FOR PROGRAM AND 3 MB FOR DATA, 1. INTERFACE: PROFINET IRT WITH 2 PORT SWITCH, 2. INTERFACE: PROFINET RT, 30 NS BIT-PERFORMANCE, SIMATIC MEMORY CARD NECESSARY

CPU 1515F-2 PN Design

The CPU 1515F-2 PN features:

  • A powerful processor:
    The CPU achieves command execution times as low as 30 ns per binary instruction.
  • A large work memory:
    750 KB for program, 3 MB for data
  • SIMATIC Memory Cards as load memory;
    permit additional functions such as datalog and archives
  • Flexible expansion capability:
    single-tier configuration with max. 32 modules (CPU + 31 modules)
  • Screen with functions for
    • displaying overview information such as IP address of the integrated interface, station name, plant designation, location identifier, etc.
    • displaying safety mode, overall signature and date of the last download with signature change
    • displaying diagnostic information
    • displaying module information
    • showing display settings
    • displaying a user-definable logo
    • setting IP addresses
    • setting date and time
    • selecting the operating mode
    • resetting the CPU to factory settings
    • disabling/enabling of display
    • Enabling of protection levels.
  • PROFINET IO IRT interface for connecting distributed I/O via PROFINET
  • PROFINET interface for network separation
Application

The CPU 1515F-2 PN is the CPU with a medium program and data memory for standard and fail-safe applications that also contain distributed automation structures alongside central I/O. It can be used as a PROFINET IO controller or as distributed intelligence (PROFINET I-Device). The integrated PROFINET IO IRT interface is designed as a 2-port switch so that a linear topology can be set up in the system. The additional integrated PROFINET interface with separate IP address can be used, for example, for network separation. In addition, the CPU offers comprehensive control functionalities as well as the ability to connect drives via standardized PLC-open blocks.

Function

  • Performance
    • Faster command processing, depending on the CPU type, language extensions and new data types
    • Even shorter CPU response times due to considerably faster backplane bus
    • Powerful network connection:
      each CPU is equipped with PROFINET IO IRT (2-port switch) as a standard interface.
  • Integrated technology
    • Connection of analog and PROFIdrive-capable drives via standardized blocks (PLCopen)
    • Support of speed-controlled and positioning axes as well as external encoders
    • Trace functions for all CPU tags, both for diagnostics in real time as well as for sporadic error detection
    • Comprehensive control functionalities, e.g. easily configurable blocks for automatic optimization of the control parameters for optimum control quality
  • Security Integrated
    • Password-based know-how protection against unauthorized read-out and modification of program blocks
    • Copy protection for tying individual blocks to the serial number of the SIMATIC Memory Card: The block can only run if the configured memory card is inserted into the CPU.
    • 4-level authorization concept:
      Communication to the HMI devices can also be restricted.
    • Manipulation protection:
      The controller recognizes changed or unauthorized transmissions of the engineering data.
  • Design and handling
    • Display for showing overview information:
      e.g. station name, plant identifier, location designation, etc., diagnostic information, module information, display settings.
    • Possible operator control options on the display:
      Set addresses of the CPU or connected Ethernet communications processors, set date and time, select operating mode of CPU, reset CPU to factory settings, disable/enable display, activate protection levels.
  • Integrated system diagnostics
    • System diagnostics information is displayed consistently and in plain text in the display, TIA Portal, HMI devices and web server, even for messages from the drives. It is updated even if the CPU is in STOP mode.
    • Integrated into the firmware of the CPU, no special configuration is required
  • SIMATIC Memory Card (required for operation of the CPU)
    • Used as a plug-in load memory or for updating the firmware.
    • Also for storing additional documents or csv files (for recipes and archives)
    • Creation of data blocks for storage/reading of data via SFCs of the user program
  • Datalog (archives) and recipes
    • Storage of csv files for recipes and archives on the SIMATIC Memory Card;
      easy access to plant-relevant operating data using Office tools or via a Web server
    • Easy access to machine configuration data by means of a Web browser or SD card reader (two-way data exchange from and to the controller)
  • Programming of the standard program section
    • Programming with STEP 7 Professional, V13 and higher
    • Migration tool for migrating from SIMATIC S7-300/S7-400 to S7-1500, converts the standard program code largely automatically. Non-convertible code is logged and can be manually adapted.
    • S7-1200 basic programs can be transferred to the S7-1500 by means of copy&paste.
  • Programming of the fail-safe program section
    • Programming of the safety-related program section with the “STEP 7 Safety Advanced” option package.
Technical specifications

Article number

6ES7515-2FM01-0AB0

CPU 1515F-2 PN, 750KB PROG.,3MB DATA

General information

Product type designation

CPU 1515F-2 PN

Firmware version

V2.0

Engineering with

  • ● STEP 7 TIA Portal configurable/integrated as of version

V14

Configuration control

via dataset

Yes

Display

Screen diagonal [cm]

6.1 cm

Control elements

Number of keys

6

Mode selector switch

1

Supply voltage

Type of supply voltage

24 V DC

permissible range, lower limit (DC)

19.2 V

permissible range, upper limit (DC)

28.8 V

Reverse polarity protection

Yes

Mains buffering

  • ● Mains/voltage failure stored energy time

5 ms

Input current

Current consumption (rated value)

0.8 A

Inrush current, max.

2.4 A; Rated value

I²t

0.02 A²·s

Power

Infeed power to the backplane bus

12 W

Power consumption from the backplane bus (balanced)

6.2 W

Power loss

Power loss, typ.

6.3 W

Memory

Number of slots for SIMATIC memory card

1

SIMATIC memory card required

Yes

Work memory

  • ● integrated (for program)

750 kbyte

  • ● integrated (for data)

3 Mbyte

Load memory

  • ● Plug-in (SIMATIC Memory Card), max.

32 Gbyte

Backup

  • ● maintenance-free

Yes

CPU processing times

for bit operations, typ.

30 ns

for word operations, typ.

36 ns

for fixed point arithmetic, typ.

48 ns

for floating point arithmetic, typ.

192 ns

CPU-blocks

Number of elements (total)

6 000; Blocks (OB, FB, FC, DB) and UDTs

DB

  • ● Number range

1 … 60 999; subdivided into: number range that can be used by the user: 1 … 59 999, and number range of DBs created via SFC 86: 60 000 … 60 999

  • ● Size, max.

3 Mbyte; For non-optimized block accesses, the max. size of the DB is 64 KB

FB

  • ● Number range

0 … 65 535

  • ● Size, max.

500 kbyte

FC

  • ● Number range

0 … 65 535

  • ● Size, max.

500 kbyte

OB

  • ● Size, max.

500 kbyte

  • ● Number of free cycle OBs

100

  • ● Number of time alarm OBs

20

  • ● Number of delay alarm OBs

20

  • ● Number of cyclic interrupt OBs

20; With minimum OB 3x cycle of 500 µs

  • ● Number of process alarm OBs

50

  • ● Number of DPV1 alarm OBs

3

  • ● Number of isochronous mode OBs

1

  • ● Number of technology synchronous alarm OBs

2

  • ● Number of startup OBs

100

  • ● Number of asynchronous error OBs

4

  • ● Number of synchronous error OBs

2

  • ● Number of diagnostic alarm OBs

1

Nesting depth

  • ● per priority class

24; Up to 8 possible for F-blocks

Counters, timers and their retentivity

S7 counter

  • ● Number

2 048

Retentivity

  • — adjustable

Yes

IEC counter

  • ● Number

Any (only limited by the main memory)

Retentivity

  • — adjustable

Yes

S7 times

  • ● Number

2 048

Retentivity

  • — adjustable

Yes

IEC timer

  • ● Number

Any (only limited by the main memory)

Retentivity

  • — adjustable

Yes

Data areas and their retentivity

Retentive data area (incl. timers, counters, flags), max.

512 kbyte; In total; available retentive memory for bit memories, timers, counters, DBs, and technology data (axes): 472 KB

Flag

  • ● Number, max.

16 kbyte

  • ● Number of clock memories

8; 8 clock memory bits, grouped into one clock memory byte

Data blocks

  • ● Retentivity adjustable

Yes

  • ● Retentivity preset

No

Local data

  • ● per priority class, max.

64 kbyte; max. 16 KB per block

Address area

Number of IO modules

8 192; max. number of modules / submodules

I/O address area

  • ● Inputs

32 kbyte; All inputs are in the process image

  • ● Outputs

32 kbyte; All outputs are in the process image

per integrated IO subsystem

  • — Inputs (volume)

8 kbyte

  • — Outputs (volume)

8 kbyte

per CM/CP

  • — Inputs (volume)

8 kbyte

  • — Outputs (volume)

8 kbyte

Subprocess images

  • ● Number of subprocess images, max.

32

Hardware configuration

Number of distributed IO systems

64; A distributed I/O system is characterized not only by the integration of distributed I/O via PROFINET or PROFIBUS communication modules, but also by the connection of I/O via AS-i master modules or links (e.g. IE/PB-Link)

Number of DP masters

  • ● Via CM

8; A maximum of 8 CMs/CPs (PROFIBUS, PROFINET, Ethernet) can be inserted in total

Number of IO Controllers

  • ● integrated

2

  • ● Via CM

8; A maximum of 8 CMs/CPs (PROFIBUS, PROFINET, Ethernet) can be inserted in total

Rack

  • ● Modules per rack, max.

32; CPU + 31 modules

  • ● Number of lines, max.

1

PtP CM

  • ● Number of PtP CMs

the number of connectable PtP CMs is only limited by the number of available slots

Time of day

Clock

  • ● Type

Hardware clock

  • ● Backup time

6 wk; At 40 °C ambient temperature, typically

  • ● Deviation per day, max.

10 s; Typ.: 2 s

Operating hours counter

  • ● Number

16

Clock synchronization

  • ● supported

Yes

  • ● in AS, master

Yes

  • ● in AS, slave

Yes

  • ● on Ethernet via NTP

Yes

Interfaces

Number of PROFINET interfaces

2

Number of PROFIBUS interfaces

0

1. Interface

Interface types

  • ● Number of ports

2

  • ● integrated switch

Yes

  • ● RJ 45 (Ethernet)

Yes; X1

Functionality

  • ● PROFINET IO Controller

Yes

  • ● PROFINET IO Device

Yes

  • ● SIMATIC communication

Yes

  • ● Open IE communication

Yes

  • ● Web server

Yes

  • ● Media redundancy

Yes

PROFINET IO Controller

Services

  • — PG/OP communication

Yes

  • — S7 routing

Yes

  • — Isochronous mode

Yes

  • — Open IE communication

Yes

  • — IRT

Yes

  • — MRP

Yes; As MRP redundancy manager and/or MRP client; max. number of devices in the ring: 50

  • — MRPD

Yes; Requirement: IRT

  • — PROFIenergy

Yes

  • — Prioritized startup

Yes; Max. 32 PROFINET devices

  • — Number of connectable IO Devices, max.

256; In total, up to 1 000 distributed I/O devices can be connected via AS-i, PROFIBUS or PROFINET

  • — Of which IO devices with IRT, max.

64

  • — Number of connectable IO Devices for RT, max.

256

  • — of which in line, max.

256

  • — Number of IO Devices that can be simultaneously activated/deactivated, max.

8; in total across all interfaces

  • — Number of IO Devices per tool, max.

8

  • — Updating times

The minimum value of the update time also depends on communication share set for PROFINET IO, on the number of IO devices, and on the quantity of configured user data

Update time for IRT

  • — for send cycle of 250 µs

250 μs to 4 ms; Note: In the case of IRT with isochronous mode, the minimum update time of 500 µs of the isochronous OB is decisive

  • — for send cycle of 500 µs

500 µs to 8 ms

  • — for send cycle of 1 ms

1 ms to 16 ms

  • — for send cycle of 2 ms

2 ms to 32 ms

  • — for send cycle of 4 ms

4 ms to 64 ms

  • — With IRT and parameterization of “odd” send cycles

Update time = set “odd” send clock (any multiple of 125 µs: 375 µs, 625 µs … 3 875 µs)

Update time for RT

  • — for send cycle of 250 µs

250 µs to 128 ms

  • — for send cycle of 500 µs

500 µs to 256 ms

  • — for send cycle of 1 ms

1 ms to 512 ms

  • — for send cycle of 2 ms

2 ms to 512 ms

  • — for send cycle of 4 ms

4 ms to 512 ms

PROFINET IO Device

Services

  • — PG/OP communication

Yes

  • — S7 routing

Yes

  • — Isochronous mode

No

  • — Open IE communication

Yes

  • — IRT

Yes

  • — MRP

Yes

  • — MRPD

Yes; Requirement: IRT

  • — PROFIenergy

Yes

  • — Shared device

Yes

  • — Number of IO Controllers with shared device, max.

4

2. Interface

Interface types

  • ● Number of ports

1

  • ● integrated switch

No

  • ● RJ 45 (Ethernet)

Yes; X2

Functionality

  • ● PROFINET IO Controller

Yes

  • ● PROFINET IO Device

Yes

  • ● SIMATIC communication

Yes

  • ● Open IE communication

Yes

  • ● Web server

Yes

  • ● Media redundancy

No

PROFINET IO Controller

Services

  • — PG/OP communication

Yes

  • — S7 routing

Yes

  • — Isochronous mode

No

  • — Open IE communication

Yes

  • — IRT

No

  • — MRP

No

  • — PROFIenergy

Yes

  • — Prioritized startup

No

  • — Number of connectable IO Devices, max.

32; In total, up to 1 000 distributed I/O devices can be connected via AS-i, PROFIBUS or PROFINET

  • — Number of connectable IO Devices for RT, max.

32

  • — of which in line, max.

32

  • — Number of IO Devices that can be simultaneously activated/deactivated, max.

8; in total across all interfaces

  • — Number of IO Devices per tool, max.

8

  • — Updating times

The minimum value of the update time also depends on communication share set for PROFINET IO, on the number of IO devices, and on the quantity of configured user data

Update time for RT

  • — for send cycle of 1 ms

1 ms to 512 ms

PROFINET IO Device

Services

  • — PG/OP communication

Yes

  • — S7 routing

Yes

  • — Isochronous mode

No

  • — Open IE communication

Yes

  • — IRT

No

  • — MRP

No

  • — MRPD

No

  • — PROFIenergy

Yes

  • — Prioritized startup

No

  • — Shared device

Yes

  • — Number of IO Controllers with shared device, max.

4

Interface types

RJ 45 (Ethernet)

  • ● 100 Mbps

Yes

  • ● Autonegotiation

Yes

  • ● Autocrossing

Yes

  • ● Industrial Ethernet status LED

Yes

Protocols

Number of connections

  • ● Number of connections, max.

192; via integrated interfaces of the CPU and connected CPs / CMs

  • ● Number of connections reserved for ES/HMI/web

10

  • ● Number of connections via integrated interfaces

108

  • ● Number of S7 routing paths

16

SIMATIC communication

  • ● S7 communication, as server

Yes

  • ● S7 communication, as client

Yes

  • ● User data per job, max.

See online help (S7 communication, user data size)

Open IE communication

  • ● TCP/IP

Yes

  • — Data length, max.

64 kbyte

  • — several passive connections per port, supported

Yes

  • ● ISO-on-TCP (RFC1006)

Yes

  • — Data length, max.

64 kbyte

  • ● UDP

Yes

  • — Data length, max.

1 472 byte

  • ● DHCP

No

  • ● SNMP

Yes

  • ● DCP

Yes

  • ● LLDP

Yes

Web server

  • ● HTTP

Yes; Standard and user pages

  • ● HTTPS

Yes; Standard and user pages

OPC UA

  • ● OPC UA Server

Yes; Data access (read, write, subscribe), runtime license required

  • — Application authentication

Yes

  • — Security policies

Available security policies: None, Basic128Rsa15, Basic256Rsa15, Basic256Sha256

  • — User authentication

“anonymous” or by user name & password

Further protocols

  • ● MODBUS

Yes; MODBUS TCP

Media redundancy

  • ● Switchover time on line break, typ.

200 ms; For MRP, bumpless for MRPD

  • ● Number of stations in the ring, max.

50

Isochronous mode

Isochronous operation (application synchronized up to terminal)

Yes; With minimum OB 6x cycle of 500 µs

Equidistance

Yes

S7 message functions

Number of login stations for message functions, max.

32

Program alarms

Yes

Number of configurable program alarms

10 000

Number of simultaneously active program alarms

  • ● Number of program alarms

600

  • ● Number of alarms for system diagnostics

200

  • ● Number of alarms for motion technology objects

160

Test commissioning functions

Joint commission (Team Engineering)

Yes; Parallel online access possible for up to 8 engineering systems

Status block

Yes; Up to 8 simultaneously (in total across all ES clients)

Single step

No

Status/control

  • ● Status/control variable

Yes

  • ● Variables

Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters

  • ● Number of variables, max.

  • — of which status variables, max.

200; per job

  • — of which control variables, max.

200; per job

Forcing

  • ● Forcing, variables

Peripheral inputs/outputs

  • ● Number of variables, max.

200

Diagnostic buffer

  • ● present

Yes

  • ● Number of entries, max.

3 200

  • — of which powerfail-proof

500

Traces

  • ● Number of configurable Traces

4; Up to 512 KB of data per trace are possible

Interrupts/diagnostics/status information

Diagnostics indication LED

  • ● RUN/STOP LED

Yes

  • ● ERROR LED

Yes

  • ● MAINT LED

Yes

  • ● Connection display LINK TX/RX

Yes

Supported technology objects

Motion Control

Yes; Note: The number of axes affects the cycle time of the PLC program; selection guide via the TIA Selection Tool or SIZER

  • ● Number of available Motion Control resources for technology objects (except cam disks)

2 400

  • ● Required Motion Control resources

  • — per speed-controlled axis

40

  • — per positioning axis

80

  • — per synchronous axis

160

  • — per external encoder

80

  • — per output cam

20

  • — per cam track

160

  • — per probe

40

Controller

  • ● PID_Compact

Yes; Universal PID controller with integrated optimization

  • ● PID_3Step

Yes; PID controller with integrated optimization for valves

  • ● PID-Temp

Yes; PID controller with integrated optimization for temperature

Counting and measuring

  • ● High-speed counter

Yes

Highest safety class achievable in safety mode

Probability of failure (for service life of 20 years and repair time of 100 hours)

  • — Low demand mode: PFDavg in accordance with SIL3

< 2.00E-05

  • — High demand/continuous mode: PFH in accordance with SIL3

< 1.00E-09

Ambient conditions

Ambient temperature during operation

  • ● horizontal installation, min.

0 °C

  • ● horizontal installation, max.

60 °C; Display: 50 °C, at an operating temperature of typically 50 °C, the display is switched off

  • ● vertical installation, min.

0 °C

  • ● vertical installation, max.

40 °C; Display: 40 °C, at an operating temperature of typically 40 °C, the display is switched off

Ambient temperature during storage/transportation

  • ● min.

-40 °C

  • ● max.

70 °C

Configuration

Programming

Programming language

  • — LAD

Yes; incl. failsafe

  • — FBD

Yes; incl. failsafe

  • — STL

Yes

  • — SCL

Yes

  • — GRAPH

Yes

Know-how protection

  • ● User program protection/password protection

Yes

  • ● Copy protection

Yes

  • ● Block protection

Yes

Access protection

  • ● Password for display

Yes

  • ● Protection level: Write protection

Yes

  • ● Protection level: Read/write protection

Yes

  • ● Protection level: Complete protection

Yes

Cycle time monitoring

  • ● lower limit

adjustable minimum cycle time

  • ● upper limit

adjustable maximum cycle time

Dimensions

Width

70 mm

Height

147 mm

Depth

129 mm

Weights

Weight, approx.

830 g