Table of Contents • viiWAGO-I/O-SYSTEM 750PROFINET IO5.3.1 Digital I/O Modules......................................................................... 1625.3.1.1 2-Channel Digital Input Modules ............................................... 1625.3.1.2 2-Channel Digital Input Modules with 1 Bit Diagnostics Status perChannel ....................................................................................... 1635.3.1.3 4-Channel Digital Input Modules ............................................... 1655.3.1.4 8-Channel Digital Input Modules ............................................... 1665.3.1.5 16-Channel Digital Input Modules ............................................. 1675.3.2 Digital Output Modules ................................................................... 1685.3.2.1 2-Channel Digital Output Modules............................................. 1685.3.2.2 2 (1)-Channel Digital Output Modules with 1 Bit DiagnosticsStatus per Channel ...................................................................... 1705.3.2.3 2 (1)-Channel Digital Output Modules with 2 Bit DiagnosticsStatus per Channel ...................................................................... 1735.3.2.4 4-Channel Digital Output Modules............................................. 1765.3.2.5 4-Channel Digital Output Modules with 1 Bit Diagnostics Statusper Channel ................................................................................. 1785.3.2.6 8-Channel Digital Output Modules............................................. 1815.3.2.7 8-Channel Digital Output Modules with 1 Bit Diagnostics Statusper Channel ................................................................................. 1835.3.2.8 16-Channel Digital Output Modules........................................... 1865.3.2.9 2-Channel Digital Input Modules with 1 Bit Diagnostics Statusand Confirmation per Channel.................................................... 1885.3.3 Analog Input Modules ..................................................................... 1925.3.3.1 2-Channel Analog Input Modules............................................... 1925.3.3.2 4-Channel Analog Input Modules............................................... 1945.3.4 Analog Output Modules .................................................................. 1975.3.4.1 2-Channel Analog Output Modules ............................................ 1975.3.4.2 4-Channel Analog Output Modules ............................................ 1995.3.5 Specialty Modules ........................................................................... 2025.3.5.1 Counter Modules......................................................................... 2025.3.5.2 PWM Module.............................................................................. 2045.3.5.3 SSI Transmitter Interface............................................................ 2065.3.5.4 Incremental Encoder Interface.................................................... 2085.3.5.5 Digital Impulse Interface ............................................................ 2095.3.5.6 Serial Interfaces and Data Exchange Module............................. 2105.3.5.7 ENOCEAN Receiver Module..................................................... 2115.3.5.8 DALI/DSI Master ....................................................................... 2125.3.6 PROFIsafe Safety Modules ............................................................. 2135.3.7 Sytem Modules ................................................................................ 2155.3.7.1 Supply Modules with 2 Bit Diagnostics Status .......................... 2156 Use in Hazardous Environments ........................................................... 2176.1 Foreword .............................................................................................. 2176.2 Protective measures.............................................................................. 2176.3 Classification meeting CENELEC and IEC......................................... 2176.3.1 Divisions.......................................................................................... 2176.3.2 Explosion protection group ............................................................. 2186.3.3 Unit categories................................................................................. 2196.3.4 Temperature classes......................................................................... 2196.3.5 Types of ignition protection ............................................................ 220