WAGO 750-461 Series - Page 4

4 Table of Contents WAGO-I/O-SYSTEM 750
750-461 2AI Pt100/RTD
Manual
Version 1.4.1
4.3.2 Resistance Measurement 10 Ohm to 5.0 kOhm ............................... 34
4.4 Configurable I/O Module 750-461/003-000 ............................................ 34
4.5 I/O Module for NTC Resistance Sensors ............................................... 36
5 Mounting ................................................................................................... 37
5.1 Mounting Sequence ............................................................................... 37
5.2 Inserting and Removing Devices ........................................................... 38
5.2.1 Inserting the I/O Module .................................................................... 38
5.2.2 Removing the I/O Module.................................................................. 39
6 Connect Devices ....................................................................................... 40
6.1 Connecting a Conductor to the CAGE CLAMP
®
.................................... 40
6.2 Connection Examples ............................................................................ 41
6.2.1 2 × RTD, 2-Conductors ..................................................................... 41
6.2.2 2 × RTD, 3-Conductors ..................................................................... 42
7 Use in Hazardous Environments ............................................................ 43
7.1 Marking Configuration Examples ........................................................... 44
7.1.1 Marking for Europe According to ATEX and IECEx .......................... 44
7.1.2 Marking for the United States of America (NEC) and Canada
(CEC) ................................................................................................ 48
7.2 Installation Regulations .......................................................................... 51
7.2.1 Special Notes Regarding Explosion Protection ................................. 51
7.2.2 Special Notes Regarding ANSI/ISA Ex ............................................. 53
8 Appendix ................................................................................................... 54
8.1 Configuration and Parameterization using a GSD File with
PROFIBUS DP and PROFINET IO ........................................................ 54
8.1.1 Confi
guration of the RS-232/RS-485 Interface .................................. 54
8.1.1.1 PROFIBUS DP Fieldbus Coupler/Controller 750-333(/0xx-000),
750-833(/0xx-000), PROFINET IO Fieldbus Coupler (750-370) ... 54
8.1.1.2 PROFINET IO Fieldbus Coupler 750-375(/025-000), 750-377
(/025-000) ..................................................................................... 55
8.1.2 Configuration of the RS-232/RS-485 Serial Interface ....................... 56
8.1.2.1 All PROFIBUS DP and PROFINET IO Fieldbus
Couplers/Controllers ..................................................................... 57
8.1.2.2 PROFIBUS DP Fieldbus Coupler/Controller 750-333(/0xx-000),
750-833(/0xx-000), PROFINET IO Fieldbus Coupler 750-370 ..... 59
8.1.2.3 PROFINET IO Fieldbus Coupler 750-375(/025-000), 750-377
(/025-000) ..................................................................................... 60
List of Figures .................................................................................................... 61
List of Tables ...................................................................................................... 62
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