WO2002099663A3 - Intrinsically safe field bus system - Google Patents

Intrinsically safe field bus system Download PDF

Info

Publication number
WO2002099663A3
WO2002099663A3 PCT/DE2002/002043 DE0202043W WO02099663A3 WO 2002099663 A3 WO2002099663 A3 WO 2002099663A3 DE 0202043 W DE0202043 W DE 0202043W WO 02099663 A3 WO02099663 A3 WO 02099663A3
Authority
WO
WIPO (PCT)
Prior art keywords
field bus
zbus
power source
input
impedance
Prior art date
Application number
PCT/DE2002/002043
Other languages
German (de)
French (fr)
Other versions
WO2002099663A2 (en
WO2002099663A8 (en
Inventor
Udo Gerlach
Thomas Uehlken
Ulrich Johannsmeyer
Hans Wehinger
Lars Roehrig
Joern-Uwe Varchmin
Original Assignee
Bundesrep Deutschland
Udo Gerlach
Thomas Uehlken
Ulrich Johannsmeyer
Hans Wehinger
Lars Roehrig
Joern-Uwe Varchmin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bundesrep Deutschland, Udo Gerlach, Thomas Uehlken, Ulrich Johannsmeyer, Hans Wehinger, Lars Roehrig, Joern-Uwe Varchmin filed Critical Bundesrep Deutschland
Priority to DE10292488T priority Critical patent/DE10292488D2/en
Priority to AU2002344937A priority patent/AU2002344937A1/en
Publication of WO2002099663A2 publication Critical patent/WO2002099663A2/en
Publication of WO2002099663A3 publication Critical patent/WO2002099663A3/en
Publication of WO2002099663A8 publication Critical patent/WO2002099663A8/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling
    • G06F13/4086—Bus impedance matching, e.g. termination
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/008—Intrinsically safe circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Small-Scale Networks (AREA)

Abstract

An intrinsically safe field bus system (1) comprising a field bus (2), a power source (3), a terminating resistor (7) and at least one field bus device (4) connected to the field bus (2). The power source (3) is connected to a first end (5) of the field bus (2) and the terminating resistor (8) terminates the field bus (2) on the other end (7). The power source (3) generates a periodic alternating signal, has a reactance (ZAbsch) as a terminating resistor (8) and a unit for control and adjustment (13) of the power source (3) according to the input impedance (ZBus) of the field bus (2). The field bus input current (IBus) is kept constant when the input impedance (ZBus) in a first range of operation (I) is smaller than the wave impedance (ZW) of the field bus line, and the field bus input voltage (UBus) is adjusted to a constant maximum voltage (Umax) and the field bus input current (IBus) is adjusted according to the input impedance (ZBus) if the input impedance (ZBus) exceeds the value of the wave impedance (Zw) in a second operating range (II).
PCT/DE2002/002043 2001-06-06 2002-06-05 Intrinsically safe field bus system WO2002099663A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10292488T DE10292488D2 (en) 2001-06-06 2002-06-05 Intrinsically safe fieldbus system
AU2002344937A AU2002344937A1 (en) 2001-06-06 2002-06-05 Intrinsically safe field bus system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001127561 DE10127561B4 (en) 2001-06-06 2001-06-06 Intrinsically safe fieldbus system
DE10127561.7 2001-06-06

Publications (3)

Publication Number Publication Date
WO2002099663A2 WO2002099663A2 (en) 2002-12-12
WO2002099663A3 true WO2002099663A3 (en) 2003-02-20
WO2002099663A8 WO2002099663A8 (en) 2004-05-06

Family

ID=7687446

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/002043 WO2002099663A2 (en) 2001-06-06 2002-06-05 Intrinsically safe field bus system

Country Status (3)

Country Link
AU (1) AU2002344937A1 (en)
DE (2) DE10127561B4 (en)
WO (1) WO2002099663A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10245273B4 (en) * 2002-09-27 2004-10-07 Bundesrepublik Deutschland, vertreten durch das Bundesministerium für Wirtschaft und Arbeit, dieses vertreten durch den Präsidenten der Physikalisch-Technischen Bundesanstalt Braunschweig und Berlin Power supply for intrinsically safe energy supply
DE10328532B3 (en) * 2003-06-24 2004-12-16 Bundesrepublik Deutschland, vertr. d. d. Bundesministerium für Wirtschaft und Arbeit, dieses vertr. d. d. Präsidenten der Physikalisch-Technischen Bundesanstalt Intrinsically safe supply device has arrangement for reducing d.c. output voltage driven periodically so rising spark voltage build-up inhibited by periodic voltage reduction in event of opening spark
DE10336881B4 (en) * 2003-08-11 2008-05-15 Hüttinger Elektronik GmbH & Co. KG High-frequency excitation arrangement with a limiting circuit
GB0323178D0 (en) 2003-10-03 2003-11-05 Rogoll Gunther Physical layer diagnostics
DE102004006507A1 (en) * 2004-02-10 2005-09-15 Siemens Ag Network and network termination for networks with a continuous two-wire network cable
DE202004004637U1 (en) * 2004-03-25 2004-12-09 Schiff, Andreas, Dr. Actuator-sensor (AS) interface for network with impedance as network closure end, voltage supply and network through, two-wire cable coupled to voltage supply, to which are coupled several communication appliances
DE102005001601B4 (en) * 2005-01-12 2011-07-28 Endress + Hauser GmbH + Co. KG, 79689 Field device with bus interface
GB0514906D0 (en) 2005-07-21 2005-08-24 Rogoll Gunther Modular segment protector
EP2090946B1 (en) 2008-02-14 2011-04-06 Siemens Aktiengesellschaft Method and device for receiving and transmitting signals for safety-oriented automation components

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996004735A1 (en) * 1994-08-04 1996-02-15 Siemens Aktiengesellschaft Bus node
US5589813A (en) * 1991-10-14 1996-12-31 Nielsen; Ole C. Data communication system of the field bus type with a twin lead for power supply to connect units and for data transmission between the units
US5757265A (en) * 1992-07-15 1998-05-26 Hitachi, Ltd. Multiple-cable field bus system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3931539A1 (en) * 1989-09-21 1991-04-04 Siemens Ag Terminal connector to voltage supply bus - has diode between bus and connector in front of output coupling capacitors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5589813A (en) * 1991-10-14 1996-12-31 Nielsen; Ole C. Data communication system of the field bus type with a twin lead for power supply to connect units and for data transmission between the units
US5757265A (en) * 1992-07-15 1998-05-26 Hitachi, Ltd. Multiple-cable field bus system
WO1996004735A1 (en) * 1994-08-04 1996-02-15 Siemens Aktiengesellschaft Bus node

Also Published As

Publication number Publication date
AU2002344937A1 (en) 2002-12-16
DE10292488D2 (en) 2004-04-29
WO2002099663A2 (en) 2002-12-12
DE10127561B4 (en) 2006-11-02
DE10127561A1 (en) 2003-01-16
WO2002099663A8 (en) 2004-05-06

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