Endress+Hauser Proline Promag H 100 EtherNet/IP, Краткое руководство по эксплуатации

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Proline Promag H 100 Electrical connection
Hauser 27
Modbus RS485, non-hazardous area and Zone 2/Div. 2 (on the device side)
3
2
4
1
5
A0016811
Pin Assignment Coding Plug/socket
1 B Socket
2 A Modbus RS485
3
4
B Modbus RS485
5 Grounding/shielding
EtherNet/IP
EtherNet/IP (on the device side)
3
2
4
1
A0016812
Pin Assignment Coding Plug/socket
1 + Tx D Socket
2 + Rx
3 - Tx
4 - Rx
7.1.5 Shielding and grounding
The shielding and grounding concept requires compliance with the following:
• Electromagnetic compatibility (EMC)
• Explosion protection
• Personal protection equipment
• National installation regulations and guidelines
• Observe cable specification (→  24).
• Keep the stripped and twisted lengths of cable shield to the ground terminal as short as
possible.
• Seamless cable shielding.
Grounding of the cable shield
To comply with EMC requirements:
• Ensure the cable shield is grounded to the potential matching line at multiple points.
• Connect every local ground terminal to the potential matching line.
NOTICE
In systems without potential matching, the multiple grounding of the cable shield causes
mains frequency equalizing currents!
Damage to the bus cable shield.
‣
Only ground the bus cable shield to either the local ground or the protective ground at one
end.