Siemens SCALANCE M874-3 - Table of Contents

SCALANCE M874, M876
Operating Instructions, 08/2018, C79000-G8976-C331-08
7
Table of contents
Preface ................................................................................................................................................... 3
1 Security recommendations ...................................................................................................................... 9
2 Description of the device ....................................................................................................................... 15
2.1 Product characteristics............................................................................................................ 15
2.2 Accessories ............................................................................................................................. 17
2.3 Terminals ................................................................................................................................ 20
2.4 LED display ............................................................................................................................. 22
2.4.1 SCALANCE M874-2, M874-3 ................................................................................................. 22
2.4.2 SCALANCE M876-3, M876-4 ................................................................................................. 26
2.5 SET button .............................................................................................................................. 28
2.6 C-PLUG and KEY-PLUG ........................................................................................................ 30
3 Installation ............................................................................................................................................ 31
3.1 Securing the housing .............................................................................................................. 32
3.2 Wall mounting ......................................................................................................................... 34
3.3 Installation on the DIN rail ....................................................................................................... 36
3.4 Installing on the S7-300 standard rail ..................................................................................... 38
3.5 Installing on the S7-1500 standard rail ................................................................................... 39
3.6 Installation on a desktop pedestal .......................................................................................... 41
4 Connecting up ....................................................................................................................................... 43
4.1 Safety when connecting up ..................................................................................................... 43
4.2 SIM card .................................................................................................................................. 45
4.3 Power supply .......................................................................................................................... 46
4.4 Grounding ............................................................................................................................... 48
4.5 Digital input/output .................................................................................................................. 49
4.6 Antennas ................................................................................................................................. 52
4.7 Ethernet port ........................................................................................................................... 55
4.8 Inserting and removing the PLUG .......................................................................................... 56
5 Dimension drawings .............................................................................................................................. 59
5.1 SCALANCE M874-2, M874-3 ................................................................................................. 59
5.2 SCALANCE M876-3, M876-4 ................................................................................................. 61