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Rockwell Automation Publication 1718-IN001A-EN-E - June 2020
27
1718 Ex I/O
Elementary Safety Considerations
System earth:
• The enclosure is connected to the equipotential bonding PB of the
hazardous area (system earth).
Zone 1
Adapter
I/O module
Enclosure
ADPT
IOM
Cable type 1: M12 to RJ45
Cable type 2: M12 to M12
M12 connector
Feed through
RJ45 connector
Cable shielding: Connection to the equipotential bonding of the hazardous
area (system earth) PB (Protective Bonding according to IEC 61140:2016)
PB
PB
PB
PB
PB
PB
PB
ADPT IOM
IOM
ADPT IOM
IOM
ADPT IOM
IOM
ADPT IOM
IOM
ADPT IOM
IOM
< 100 m
< 100 m
< 100 m
1
2
3
Non-explosion
hazardous area