Endress+Hauser RID16 Bedienungsanleitung Seite 36

Wiring
Abb. 8: Connection to the PROFIBUS® PA fieldbus cable
A Terminals - fieldbus communication and power supply
B Internal ground terminal
C External ground terminal
D Shielded fieldbus cable
‣
The terminals for the fieldbus connection (1+ and 2-) are not polarity sensitive.
‣
Conductor cross-section:
– Max. 2.5 mm
‣
Always use a shielded cable for the connection.
5.2.2 Fieldbus connector
Optionally, a fieldbus connector can be installed in the field housing instead of a cable gland.
Fieldbus connectors can be ordered as an accessory from Endress+Hauser (see Section 8 "Acces-
sories").
The PROFIBUS® PA connection technology allows measuring devices to be connected to the
fieldbus via standardized mechanical connections such as T-boxes, junction box modules etc.
This connection technology using pre-fabricated junction box modules and plug-in connectors
offers considerable advantages over conventional wiring systems:
• Field devices can be removed, replaced or added at any time during normal operation. Com-
munication is not interrupted.
• Installation and maintenance are considerably easier.
• Existing cable infrastructures can be used and extended immediately, e.g. when creating new
star distributor systems using 4-channel or 8-channel distribution modules.
Shielding the supply line/T-box
36
2
(14 AWG)
RID16
A0012567
Endress+Hauser