WAGO 750-651 Manual

WAGO 750-651 Manual

Fieldbus independent i/o modules
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Fieldbus Independent
I/O Modules
TTY-Interface 20mA Current Loop
750-651 (/xxx-xxx)
Manual
Version 1.0.3

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Summary of Contents for WAGO 750-651

  • Page 1 Fieldbus Independent I/O Modules TTY-Interface 20mA Current Loop 750-651 (/xxx-xxx) Manual Version 1.0.3...
  • Page 2 • General Copyright  2008 by WAGO Kontakttechnik GmbH & Co. KG All rights reserved. WAGO Kontakttechnik GmbH & Co. KG Hansastraße 27 D-32423 Minden Phone: +49 (0) 571/8 87 – 0 Fax: +49 (0) 571/8 87 – 1 69 E-Mail: info@wago.com...
  • Page 3: Table Of Contents

    Safety Information..................8 Font Conventions ..................9 Number Notation ..................9 Scope ...................... 10 2 I/O Modules ....................11 Special Modules ..................11 2.1.1 750-651 (/xxx-xxx) [TTY-Interface 20mA Current Loop] ....11 2.1.1.1 Variations..................11 2.1.1.2 View....................11 2.1.1.3 Description..................12 2.1.1.4...
  • Page 4: Important Notes

    Co. KG, Minden, Germany. Non-observance will involve the right to assert damage claims. WAGO Kontakttechnik GmbH & Co. KG reserves the right to provide for any alterations or modifications that serve to increase the efficiency of technical progress. WAGO Kontakttechnik GmbH & Co. KG owns all rights arising from the granting of patents or from the legal protection of utility patents.
  • Page 5: Use Of The 750 Series In Compliance With Underlying Provisions

    Legal Bases All responsible persons have to familiarize themselves with the underlying legal standards to be applied. WAGO Kontakttechnik GmbH & Co. KG does not assume any liability whatsoever resulting from improper handling and damage incurred to both WAGO´s own and third-party products by disregarding detailed information in this Manual.
  • Page 6: Standards And Guidelines For Operating The 750 Series

    (emissions of interference) in compliance with EN 61000-6-3. You will find the detailed information in section "WAGO-I/O-SYSTEM 750"  "System Description"  "Technical Data".  Please observe the safety precautions against electrostatic discharge in accordance with DIN EN 61340-5-1/-3.
  • Page 7: Symbols

    Observe the precautionary measure for handling components at risk of electrostatic discharge. Note Make important notes that are to be complied with so that a trouble-free and efficient device operation can be guaranteed. Additional Information References to additional literature, manuals, data sheets and internet pages. WAGO-I/O-SYSTEM 750 I/O Modules...
  • Page 8: Safety Information

    Danger The WAGO-I/O-SYSTEM 750 and its components are an open system. It must only be assembled in housings, cabinets or in electrical operation rooms. Access is only permitted via a key or tool to authorized qualified personnel.
  • Page 9: Font Conventions

    Only for use in LAN, not for connection to telecommunication circuits. 1.5 Font Conventions Names of paths and data files are marked in italic-type. italic e.g.: C:\Programs\WAGO-IO-CHECK Menu items are marked in italic-type, bold letters. italic e.g.: Save A backslash between two names characterizes the selection of a menu point from a menu.
  • Page 10: Scope

    Important Notes Scope 1.7 Scope This manual describes the Digital Input Module 750-651 (/xxx-xxx) TTY- Interface 20mA Current Loop of the modular WAGO-I/O-SYSTEM 750. Handling, assembly and start-up are described in the manual of the Fieldbus Coupler. Therefore this documentation is valid only in the connection with the appropriate manual.
  • Page 11: O Modules

    750-651 (/xxx-xxx) [TTY-Interface 20mA Current Loop] • 11 Variations 2 I/O Modules 2.1 Special Modules 2.1.1 750-651 (/xxx-xxx) [TTY-Interface 20mA Current Loop] 2.1.1.1 Variations Item-No. Designation Description 750-651 TTY/ 9600/ N/ 8/ 1 Baud rate: 9600 baud, Parity: none, data bits: 8, stop bits: 1...
  • Page 12: Description

    This module has no power contacts. For field supply to downstream I/O modules, a supply module will be needed. The TTY-Interface module 750-651 and its variations can be used with all couplers/controllers of the WAGO-I/O-SYSTEM 750 (except for the economy types 750-320, -323, -324 and -327).
  • Page 13: Display Elements

    750-651 (/xxx-xxx) [TTY-Interface 20mA Current Loop] • 13 Display Elements 2.1.1.4 Display Elements Channel State Function Function No operational readiness or the internal data bus communication is interrupted green Operational readiness and trouble- free internal data bus communication Loop current ≤ 2 mA( SPACE) Fig.
  • Page 14: Technical Data

    14 • 750-651 (/xxx-xxx) [TTY-Interface 20mA Current Loop] Technical Data 2.1.1.6 Technical Data Module Specific Data Transmission channel 1 TxD / 1 RxD, full duplex Baud rate 1200 ... 19200 baud Bit transmission MARK: I ≥ 12 mA, SPACE: I ≤ 2 mA Load impedance <...
  • Page 15: Functional Description

    WAGO-I/O-SYSTEM 750  System Description 2.1.1.7 Functional description The interface module is designed to operate with all WAGO I/O fieldbus couplers. The TTY interface module allows the connection of TTY-Interface devices to the WAGO I/O SYSTEM. The TTY Interface module can provide gateways within the fieldbus protocol.
  • Page 16 16 • 750-651 (/xxx-xxx) [TTY-Interface 20mA Current Loop] Functional description Attention The data transmission takes place at 9600 baud (default value). 1 startbit, 8 databits and 1 stopbit will be transmitted. No parity is available. The drivers are high ohmic. The control of data is made by the user software.
  • Page 17: Process Image

    Process Image 2.1.1.8 Process Image Using the module 750-651, a 6 byte input and output process image can be transferred to the fieldbus coupler / controller via one logical channel. The transfer of the data to be transmitted and the received data is made via 5 output and 5 input bytes (D0 ...
  • Page 18: Datatransfer

    18 • 750-651 (/xxx-xxx) [TTY-Interface 20mA Current Loop] Datatransfer Status byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 IL 2 IL 1 IL 0 BUF_F Transmit acknowledge Receive request Initialization acknowledge...
  • Page 19: Example

    750-651 (/xxx-xxx) [TTY-Interface 20mA Current Loop] • 19 Datatransfer The transmitting and receiving of data can be done simultaneously. The initialization request has priority and will stop transmitting and receiving of data immediately. Attention Resetting the initialization bit can be performed with the following message.
  • Page 20 20 • 750-651 (/xxx-xxx) [TTY-Interface 20mA Current Loop] Datatransfer As soon as TR=TA, the rest of the data can be sent. Input byte 0 Statusbyte Input byte 2 Input byte 1 '0XXX.XXX0' The data is still being transferred. '0XXX.XXX1' Data transfer completed.
  • Page 21 750-651 (/xxx-xxx) [TTY-Interface 20mA Current Loop] • 21 Datatransfer After the 3 characters have been processed, RA is inverted. Output byte 0 Control byte Output byte 2 Output byte 1 '0XXX.001X' If RARR, the receiving of additional characters will continue.
  • Page 22: Use In Hazardous Environments

    22 • Use in Hazardous Environments 3 Use in Hazardous Environments The WAGO-I/O-SYSTEM 750 (electrical equipment) is designed for use in Zone 2 hazardous areas. The following sections include both the general identification of components (devices) and the installation regulations to be observed. The individual subsections of the "Installation Regulations"...
  • Page 23: Marking Configuration Examples

    DEMKO 08 ATEX 142851 X Approval body and/or number of the examination IECEx PTB 07.0064X certificate I M2 / II 3 GD Explosion protection group and Unit category Ex nA Type of ignition and extended identification Explosion protection group Temperature class WAGO-I/O-SYSTEM 750 Busklemmen...
  • Page 24 Figure 3: Side marking example for Ex i and IEC Ex i approved I/O modules according to CENELEC and IEC Figure 4: Text detail – Marking example for Ex i and IEC Ex i approved I/O modules according to CENELEC and IEC WAGO-I/O-SYSTEM 750 Busklemmen...
  • Page 25 Device category: Zone 2 device (Zone 0 subunit) Explosion protection mark Type of protection: Non-sparking operating equipment [ia] Category of type of protection intrinsic safety: Even safe when two errors occur Explosion Group Temperature class: Max. surface temperature 135°C WAGO-I/O-SYSTEM 750 Busklemmen...
  • Page 26: Marking For America According To Nec 500

    Table 3: Description of marking example for I/O modules according to NEC 500 Printing on Text Description CL 1 Explosion protection group (condition of use category) DIV 2 Area of application (zone) Grp. ABCD Explosion group (gas group) Optemp code T4 Temperature class WAGO-I/O-SYSTEM 750 Busklemmen...
  • Page 27: Installation Regulations

    NFPA 70 National Electrical Code Art. 500 Hazardous Locations ANSI/ISA-RP 12.6-1987 Recommended Practice C22.1 Canadian Electrical Code Notice the following points When using the WAGO-I/O SYSTEM 750 (electrical operation) with Ex approval, the following points are mandatory: WAGO-I/O-SYSTEM 750 Busklemmen...
  • Page 28: Special Conditions For Safe Operation Of The Atex And Iec Ex (Acc. Demko 08 Atex 142851X And Iecex Ptb 07.0064)

    3.2.1 Special Conditions for Safe Operation of the ATEX and IEC Ex (acc. DEMKO 08 ATEX 142851X and IECEx PTB 07.0064) The fieldbus-independent I/O modules of the WAGO-I/O-SYSTEM 750-.../...-... must be installed in an environment with degree of pollution 2 or better. In the final...
  • Page 29: Special Conditions For Safe Use (Atex Certificate Tüv 07 Atex 554086 X)

    554086 X) For use as Gc- or Dc-apparatus (in zone 2 or 22) the field bus independent I/O modules WAGO-I/O-SYSTEM 750-*** shall be erected in an enclosure that fulfils the requirements of the applicable standards (see the marking) EN 60079-0, EN 60079-11, EN 60079-15, EN 61241-0 and EN 61241-1. For use as...
  • Page 30 If the module is energized do not remove or replace the fuse. Do not separate when energized! Do not separate the module when energized! Separate only in a non-hazardous area! Separate the module only in a non-hazardous area! WAGO-I/O-SYSTEM 750 Busklemmen...
  • Page 31: Special Conditions For Safe Use (Iec-Ex Certificate Tun 09.0001

    3.2.3 Special conditions for safe use (IEC-Ex Certificate TUN 09.0001 For use as Dc- or Gc-apparatus (in zone 2 or 22) the fieldbus independent I/O modules WAGO-I/O-SYSTEM 750-*** shall be erected in an enclosure that fulfils the requirements of the applicable standards (see the marking) IEC 60079-0, IEC 60079-11, IEC 60079-15, IEC 61241-0 and IEC 61241-1.
  • Page 32 If the module is energized do not remove or replace the fuse. Do not separate when energized! Do not separate the module when energized! Separate only in a non-hazardous area! Separate the module only in a non-hazardous area! WAGO-I/O-SYSTEM 750 Busklemmen...
  • Page 33: Special Conditions For Safe Use (Atex Certificate Dekra 11Atex0203 X)

    Address selectors and ID switches may only be adjusted when the system supply is switched off, or when the location is known to be non-hazardous. The ambient temperature range is: 0°C ≤ T ≤ +55°C. WAGO-I/O-SYSTEM 750 Busklemmen...
  • Page 34: Ansi/Isa 12.12.01

    Devices containing fuses must not be fitted into circuits subject to over loads! Devices containing fuses must not be fitted into circuits subject to over loads, e.g. motor circuits! WAGO-I/O-SYSTEM 750 Busklemmen...
  • Page 35 Proof of certification is available on request. Also take note of the information given on the module technical information sheet. The Instruction Manual, containing these special conditions for safe use, must be readily available to the user. WAGO-I/O-SYSTEM 750 Busklemmen...
  • Page 36 36 • Use in Hazardous Environments WAGO-I/O-SYSTEM 750 Busklemmen...
  • Page 37 Use in Hazardous Environments • 37...
  • Page 38 WAGO Kontakttechnik GmbH & Co. KG Postfach 2880 • D-32385 Minden Hansastraße 27 • D-32423 Minden Phone: 05 71/8 87 – 0 Fax: 05 71/8 87 – 1 69 E-Mail: info@wago.com Internet: http://www.wago.com...

This manual is also suitable for:

750-651/000-001750-651/000-002750-651/000-003

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