5/26/2018 s7 300 314 ifm

1/93

AUTOMATIZACIJSKA

TEHNIKA

S7 300 Family Programmable

Logic Controllers

5/26/2018 s7 300 314 ifm

2/93

CPU Specifications CPU 314

IFM

Hardware overview

5/26/2018 s7 300 314 ifm

3/93

CPUs and Hardware/Software

versions

5/26/2018 s7 300 314 ifm

4/93

The CPU 314IFM is available in 2

versions: with slot for memory card (6ES7314-5EA10-0AB0)

without slot for memory card (6ES7314-5EA0x-

0AB0/6314ES7314-5EA8x-0AB0)

5/26/2018 s7 300 314 ifm

5/93

SIMATIC Documentation on the Internet http://www.ad.siemens.de/support

5/26/2018 s7 300 314 ifm

6/93

Control and Display Elements

5/26/2018 s7 300 314 ifm

7/93

Control and Display Elements of

the CPUs

5/26/2018 s7 300 314 ifm

8/93

Differences Between CPUs

5/26/2018 s7 300 314 ifm

9/93

Status and Fault Displays

5/26/2018 s7 300 314 ifm

10/93

Mode Selector Switch

5/26/2018 s7 300 314 ifm

11/93

Backup battery/accumulator

Exceptions The CPUs 312IFM and 313 do not have a real time

clock so they do not need an accumulator battery.

The CPU 312IFM does not have a buffer whichmeans that you can not insert a battery.

Backup battery or rechargeable

battery? Next table shows the differences in the backup

provided by an accumulator and a backup battery.

5/26/2018 s7 300 314 ifm

12/93

5/26/2018 s7 300 314 ifm

13/93

Memory card

Purpose of the Memory Card With the memory card, you can expand the load

memory of your CPU.

You can store the user program and theparameters that set the responses of the CPU and

modules on the memory card.

You can also back up your CPU operating system

to a Memory Card. exceptCPU 318-2. If you store the user program on the memory card,

it will remain in the CPU when the power is off

even without a backup battery.

5/26/2018 s7 300 314 ifm

14/93

Available Memory Cards

5/26/2018 s7 300 314 ifm

15/93

MPI and PROFIBUS-DP Interface

5/26/2018 s7 300 314 ifm

16/93

MPI interface The MPI is the interface of the CPU for the programming

device/OP and for communication in an MPI subnet.

Typical (default) transmission speed is 187.5 Kbps (CPU

318-2: adjustable up to 12 Mbps). Communication with an S7-200 requires 19.2 Kbps.

The CPU automatically broadcasts its set bus parameters

(e.g. baud rate) at the MPI interface. This means that a

programming device, for example, can automatically hook

up to an MPI subnet.

5/26/2018 s7 300 314 ifm

17/93

PROFIBUS-DP Interface CPUs equipped with 2 interfaces provide a

PROFIBUS-DP interface connection.

Transmission rates up to 12 Mbps are possible. The CPU automatically broadcasts its set bus

parameters (e.g. baud rate) at the PROFIBUS-DP

interface. This means that a programming device,

for example, can automatically hook up to aPROFIBUS subnet.

In Step 7 you can switch off automatic transfer of

bus parameter.

5/26/2018 s7 300 314 ifm

18/93

Removing and Inserting Modules in theMPI Subnet

You must not plug in or remove any modules (SM,

FM, CP) of an S7-300 configuration while data isbeing transmitted over the MPI.

If you remove or plug in S7-300 modules (SM, FM,CP) during data transmission via the MPI, the datamight be corrupted by disturbing pulses.

You must not plug in or remove modules (SM, FM,CP) of an S7-300 configuration during datatransmission via the MPI!

5/26/2018 s7 300 314 ifm

19/93

Clock and Runtime Meter

5/26/2018 s7 300 314 ifm

20/93

Testing Functions

The CPUs offer you the following testing

functions Monitor Variables

Modify Variables

Forcing (note the differences between CPUs)

Monitor block

Set Breakpoint

5/26/2018 s7 300 314 ifm

21/93

S7 314 IFM

Technical Specifications

5/26/2018 s7 300 314 ifm

22/93

Special Features

Integrated I/Os (wired with 40-pole front

connector)

5/26/2018 s7 300 314 ifm

23/93

Memory card

The CPU 314 IFM is available in 2

versions: with and without Memory Card

slot. With slot for memory card: 6ES7 314-5AE10-0AB0

Without slot for memory card: 6ES7 314-5AE0x-0AB0

5/26/2018 s7 300 314 ifm

24/93

Integrated Functions of the CPU

314 IFM

5/26/2018 s7 300 314 ifm

25/93

5/26/2018 s7 300 314 ifm

26/93

5/26/2018 s7 300 314 ifm

27/93

5/26/2018 s7 300 314 ifm

28/93

5/26/2018 s7 300 314 ifm

29/93

5/26/2018 s7 300 314 ifm

30/93

5/26/2018 s7 300 314 ifm

31/93

5/26/2018 s7 300 314 ifm

32/93

5/26/2018 s7 300 314 ifm

33/93

5/26/2018 s7 300 314 ifm

34/93

5/26/2018 s7 300 314 ifm

35/93

5/26/2018 s7 300 314 ifm

36/93

5/26/2018 s7 300 314 ifm

37/93

5/26/2018 s7 300 314 ifm

38/93

5/26/2018 s7 300 314 ifm

39/93

5/26/2018 s7 300 314 ifm

40/93

5/26/2018 s7 300 314 ifm

41/93

5/26/2018 s7 300 314 ifm

42/93

5/26/2018 s7 300 314 ifm

43/93

5/26/2018 s7 300 314 ifm

44/93

5/26/2018 s7 300 314 ifm

45/93

5/26/2018 s7 300 314 ifm

46/93

5/26/2018 s7 300 314 ifm

47/93

5/26/2018 s7 300 314 ifm

48/93

5/26/2018 s7 300 314 ifm

49/93

Characteristic Features of the Integrated

Inputs and Outputs of the CPU 314 IFM

T h i l S ifi ti f th

5/26/2018 s7 300 314 ifm

50/93

Technical Specifications of the

Analog Inputs of the CPU 314IFM

5/26/2018 s7 300 314 ifm

51/93

5/26/2018 s7 300 314 ifm

52/93

5/26/2018 s7 300 314 ifm

53/93

Technical Specifications of the Analog

Output of the CPU 314IFM

5/26/2018 s7 300 314 ifm

54/93

5/26/2018 s7 300 314 ifm

55/93

T h i l S ifi ti f th

5/26/2018 s7 300 314 ifm

56/93

Technical Specifications of the

Special Inputs of the CPU 314IFM

5/26/2018 s7 300 314 ifm

57/93

Technical Specifications of the

5/26/2018 s7 300 314 ifm

58/93

Technical Specifications of the

Digital Inputs of the CPU 314IFM

5/26/2018 s7 300 314 ifm

59/93

T h i l S ifi ti f th Di it l

5/26/2018 s7 300 314 ifm

60/93

Technical Specifications of the Digital

Outputs of the CPU 314IFM

When the supply voltage is switched on a

pulse occurs on the digital outputs! This

can be 50 ms long within the permissible

output current range. You mustnot,therefore, use the digital outputs to

trigger high-speed counters.

5/26/2018 s7 300 314 ifm

61/93

5/26/2018 s7 300 314 ifm

62/93

Wiring diagram of the CPU 314

5/26/2018 s7 300 314 ifm

63/93

Wiring diagram of the CPU 314

IFM

For the connection of integrated I/O you requiretwo 40-pole front connectors

Always wire up digital inputs 126.0 to 126.3 withshielded cable due to their low input delay time.

Wiring errors at the analog outputs can causethe integrated analog I/O of the CPU to bedestroyed! (for example, if the interrupt inputsare wired by mistake to the analog output). Theanalog output of the CPU is only indestructibleup to 15 V (output with respect to MANA).

5/26/2018 s7 300 314 ifm

64/93

Basic Circuit Diagrams of the

5/26/2018 s7 300 314 ifm

65/93

Basic Circuit Diagrams of the

CPU 314 IFM

Special Inputs and Analog

5/26/2018 s7 300 314 ifm

66/93

Special Inputs and Analog

Inputs/Outputs

5/26/2018 s7 300 314 ifm

67/93

Digital Inputs/Outputs

Wiring the Analog Inputs

5/26/2018 s7 300 314 ifm

68/93

g g p2-wire measurement transducers

Wi i th A l I t

5/26/2018 s7 300 314 ifm

69/93

Wiring the Analog Inputs4-wire measurement transducers

5/26/2018 s7 300 314 ifm

70/93

S7 314 IFM

Cycle and Reaction times

5/26/2018 s7 300 314 ifm

71/93

Introduction

In this section, we explain what the cycle

time and the response time of the S7-300

consist of.

You can use the programming device toread the cycle time of your user program

The response time is more important for

the process.

5/26/2018 s7 300 314 ifm

72/93

Cycle time

Cycle Time

A Definition The cycle time is the time that elapses during one

program cycle.

Component Parts of the Cycle

5/26/2018 s7 300 314 ifm

73/93

Component Parts of the Cycle

Time

5/26/2018 s7 300 314 ifm

74/93

5/26/2018 s7 300 314 ifm

75/93

Extending the Cycle Time

Note that the cycle time of a user program

is extended by the following: Time-controlled interrupt handling process interrupt

processing Diagnostics and error handling

Communication via MPI

5/26/2018 s7 300 314 ifm

76/93

Response Time

Response Time

A Definition The response time is the time between detection of

an input signal and modification of an associated

output signal.

Factors The response time depends on the cycle time and

the following factors:

5/26/2018 s7 300 314 ifm

77/93

5/26/2018 s7 300 314 ifm

78/93

Shortest Response Time

R Ti

5/26/2018 s7 300 314 ifm

79/93

Longest Response Time

Operating System Processing

5/26/2018 s7 300 314 ifm

80/93

Operating System Processing

Time

Contains all the times needed to calculatethe operating system processing times of

the CPUs.

The times listed do not take account of Test functions, e.g. monitor, modify

Functions: Load block, delete block, compress

block

Communication

5/26/2018 s7 300 314 ifm

81/93

P I U d t

5/26/2018 s7 300 314 ifm

82/93

Process Image Update

U P P i Ti

5/26/2018 s7 300 314 ifm

83/93

User Program Processing Time

The user program processing time ismade up of the sum of the execution times

for the instructions and the SFB/SFCs

called up. These execution times can befound in the Instruction List. Additionally,

you must multiply the user program

processing time by a CPU-specific factor.This factor is listed in following table for

the individual CPUs.

5/26/2018 s7 300 314 ifm

84/93

S7 ti

5/26/2018 s7 300 314 ifm

85/93

S7 timers

In the case of the CPU 318-2, the updatingof the S7 timers does not extend the cycle

time.

The S7 Timer is updated every 10 ms.

5/26/2018 s7 300 314 ifm

86/93

PROFIBUS DP i t f

5/26/2018 s7 300 314 ifm

87/93

PROFIBUS-DP interface

In the case of the CPU 315-2 DP/316-2DP, the cycle time is typically extended

by 5% when the PROFIBUS-DP interface

is used. In the case of the CPU 318-2, there is no

increase in cycle time when the

PROFIBUS-DP interface is used.

I t t d F ti

5/26/2018 s7 300 314 ifm

88/93

Integrated Functions

With CPU 312-IFM and 314-IFM operationthe cycle time increases by a maximum of10% when using integrated functions. Also

take into consideration a possible instanceDB update during the cycle checkpoint.

Next table shows the update times of theinstance DB at the scan cycle checkpoint,

together with the corresponding SFBruntimes.

5/26/2018 s7 300 314 ifm

89/93

5/26/2018 s7 300 314 ifm

90/93

S7 314 IFM

Dimensions

CPU 314 IFM Front Vie

5/26/2018 s7 300 314 ifm

91/93

CPU 314 IFM, Front View

CPU 314 IFM Side View

5/26/2018 s7 300 314 ifm

92/93

CPU 314 IFM, Side View

5/26/2018 s7 300 314 ifm

93/93