2
0
1
8
-1
2
56
Installation
3.14.2
Ethernet-based fieldbuses
The gateway is connected to the Ethernet network using the two Ethernet interfaces on the
front. Mechanically, this occurs through an M12 plug connection according to IEC 61076-2-
101:2012.
Three basic connection scenarios are shown below:
Figure 3.26
Connection scenarios
Zone 1
Gateway
I/O modules
Enclosure
Gateway
GW
IOM
GW IOM
IOM
GW IOM
IOM
GW IOM
IOM
GW IOM
IOM
GW IOM
IOM
< 100 m
< 100 m
< 100 m
1
2
3
Cable type 1: M12 to RJ45
Cable type 2: M12 to M12
M12 connection
Cable duct
RJ45 connection
Non-explosion
hazardous area