Siemens
СРЕДСТВА ПРОМЫШЛЕННОЙ АВТОМАТИЗАЦИИ
официальный партнер Сименс
Каталог СА01 2017
архивный
(4872) 700-366
skenergo@mail.ru

PROFIBUS
PROFIBUS DP bus system

PROFIBUS features

  • It is standardized to EN 50170 and IEC 61158-3 Ed. 2.
  • User-friendly, high data security, high degree of availability
  • Openness; Third-party components can also be connected

PROFIBUS can operate in the following versions:

  • PROFIBUS FMS (Field bus Message Specification)
  • PROFIBUS PA (Process Automation)
  • PROFIBUS DP (Distributed I/O)

All protocol profiles can operate on a shared cable.

PROFIBUS FMS protocol

PROFIBUS FMS is the protocol for universal communication tasks at the field level.

PROFIBUS DP protocol

PROFIBUS DP is the protocol for distributed I/O. It supports extremely fast cyclic communication for small volumes of data.

PROFIBUS PA protocol

PROFIBUS PA is the protocol for process automation, in particular for intrinsically safe applications. With PROFIBUS PA, the PROFIBUS DP protocol is converted to the intrinsically safe physical bus properties in accordance with IEC 1158-2.

Thanks to the

  • creation of an optimal subset of PROFIBUS message services and
  • increasing the transmission rate,

the bus cycles times are negligibly small.

The advantages of PROFIBUS are retained, e.g.

  • High availability,
  • Data integrity
  • Standard message structure
  • Reaction-free connection and disconnection of bus nodes during operation.

PROFIBUS DP features

  • It is standardized to EN 50170 and IEC 61158-3 Ed. 2.
  • Communication over two-wire cables and fiber-optic cables
  • Max. 125 stations; max. 32 stations per segment
  • Bus access control: Token passing with lower level master/slave
  • Transmission rates 9.6/19.2/93.75/187.5/500 Kbit/s as well as 1.5/3/6/12 Mbit/s
  • Data transmission using twisted-pair cable and fiber-optic cable
  • Large range of components for connection to the fieldbus
  • Universal applications
  • Programming via the bus is also possible
  • Modular expansion; the fieldbus can grow as requirements grow
  • Automatic detection of the transmission rate in the case of slaves
  • Open system; field devices from other manufacturers can also be connected (via GSD files)
  • Clear overview of architecture; totally process-oriented configuration
  • Direct data traffic between DP slaves
  • Isochronous DP bus cycle

Permissible cable lengths for two-wire cable

Transmission rate in Mbit/s

9,6

19,2

93,75

187,5

500

Length in m per bus segment

1000

1000

1000

1000

400

Length in m for 10 bus segments

10000

10000

10000

10000

4000

 

Transmission rate in Mbit/s

1.5

3

6

12

 

Length in m per bus segment

200

100

100

100

 

Length in m for 10 bus segments

2000

1000

1000

1000

 


Permissible Cable Lengths for Fiber-Optic Cable

Cable type

Plastic (POF)

PCF

Glass

Transmission rate in Mbit/s

9.6 to 1500 and 12000

9.6 to 1500 and 12000

9.6 to 12000

Max. length between two stations in m

50

300

2850 (for 62.5/125 fiber; 3.5 dB/km)



For further details about the bus connectors and cables required for assembling PROFIBUS, see "Bus Components" and "Industrial Communication SIMATIC NET".

Bus nodes

Active stations (masters)

  • S7-300, S7-400, M7-300, M7-400 programmable controllers with PROFIBUS DP interface
  • S5-115U/H, S5-135U, S5-155U/H, S5-95U/DP-Master programmable controllers with PROFIBUS DP interface
  • Non-Siemens programmable controllers (with master interface)
  • HMI devices
  • PG 720, PG 740, PG 760 programming devices/PCs
  • SINUMERIK machine tool controllers
  • SIMADYN closed-loop control system
  • Other Siemens master devices or non-Siemens devices

Passive nodes (slaves)

  • ET 200 distributed I/O station
  • S7-200, S7-300 programmable controllers
  • S5-115U, S5-135U, S5-155U programmable controllers (with IM 308-C)
  • S5-95U/DP-Slave programmable controller (max. 1.5 Mbit/s)
  • DP/AS-Interface Link, DP/DP-Link, DP/PA-Link bus couplers
  • SITRANS field devices for process engineering connected to PROFIBUS PA
  • Field devices, also non-Siemens; e.g. drives, valves, process controllers and NC controls
  • Drives (e.g. MICROMASTER, COMBIMASTER, MASTERDRIVES, SIMOREG, SIMADYN, SIMOVERT)
Interface modules/software

The following table shows which interface modules and communications modules are available for connection to the PROFIBUS DP field bus.

Automation system

PROFIBUS DP interface module

Parameterization software

S7-300

Integrated interface on the CPU or CP 342-5

Included in STEP 7

S7-400

Integral interface on the CPU or CP 443-5, IM 467

Included in STEP 7

M7-300

Interface module IF 964-DP

Included in STEP 7

M7-400

Interface module IF 964-DP

Included in STEP 7

S5-95U/DP-Master

Integrated interface

COM PROFIBUS

S5-115U/H

IM 308-C interface module

COM PROFIBUS

S5-135U

IM 308-C interface module

COM PROFIBUS

S5-155U/H

IM 308-C interface module

COM PROFIBUS

505

SIMATIC 505-FIM

TISOFT programming software



















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