Content •iii
WAGO-I/O-SYSTEM 750
I/O Modules
Content
1Important Notes ..........................................................................................4
1.1 Legal Bases...............................................................................................4
1.1.1 Copyright ............................................................................................. 4
1.1.2 Personnel Qualifications......................................................................4
1.1.3 Use of the 750 Series in Compliance with Underlying Provisions .....5
1.1.4 Technical Condition of Specified Devices .......................................... 5
1.2 Standards and Guidelines for Operating the 750 Series...........................6
1.3 Symbols....................................................................................................7
1.4 Safety Information....................................................................................8
1.5 Font Conventions ..................................................................................... 9
1.6 Number Notation......................................................................................9
1.7 Scope ......................................................................................................10
2I/O Modules...............................................................................................11
2.1 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 Display Elements .......................................................................... 13
2.1.1.5 Schematic Diagram....................................................................... 13
2.1.1.6 Technical Data .............................................................................. 14
2.1.1.7 Functional description................................................................... 15
2.1.1.8 Process Image ............................................................................... 17
2.1.1.9 Datatransfer................................................................................... 18
2.1.1.9.1 Example....................................................................................19
3Use in Hazardous Environments.............................................................22
3.1 Marking Configuration Examples..........................................................23
3.1.1 Marking for Europe according to CENELEC and IEC ..................... 23
3.1.2 Marking for America according to NEC 500 .................................... 26
3.2 Installation Regulations.......................................................................... 27
3.2.1 Special Conditions for Safe Operation of the ATEX and IEC Ex (acc.
DEMKO 08 ATEX 142851X and IECEx PTB 07.0064).................. 28
3.2.2 Special conditions for safe use (ATEX Certificate TÜV 07 ATEX
554086 X) ..........................................................................................29
3.2.3 Special conditions for safe use (IEC-Ex Certificate TUN 09.0001 X)31
3.2.4 Special conditions for safe use (ATEX Certificate DEKRA
11ATEX0203 X) ............................................................................... 33
3.2.5 ANSI/ISA 12.12.01 ........................................................................... 34
