Wiring Proline Promag 55 PROFIBUS DP/PA
50 Endress+Hauser
Fieldbus connector
The connection technology of PROFIBUS PA allows measuring devices to be connected to the
fieldbus via uniform mechanical connections such as T-boxes, distribution modules etc.
This connection technology, which uses prefabricated distribution modules and plug-in connectors,
offers substantial advantages over conventional wiring:
• Field devices can be removed, replaced or added at any time during normal operation.
Communication is not interrupted.
• Installation and maintenance are significantly easier.
• Existing cable infrastructures can be used and expanded instantly, e.g. when constructing new
star distributors using 4-channel or 8-channel distribution modules.
The device can therefore be supplied with the option of a ready-mounted fieldbus connector.
Fieldbus connectors for retrofitting can be ordered from Endress+Hauser as a spare part ä 120.
A0005999
Fig. 34: Connectors for connecting to the PROFIBUS PA
A Wall-mount housing
B Aluminum field housing
C Protection cap for connector
D Fieldbus connector
E Adapter PG 13.5 / M 20.5
F Connector on housing (male)
G Cable socket (female)
Pin assignment/color codes:
1 Brown wire: PA + (terminal 26)
2 Not connected
3 Blue wire: PA – (terminal 27)
4 Black wire: ground (instructions for connection ä 49)
5 Not connected
6 Positioning groove
7 Positioning key
PG 13.5
M12x1
150/300
(5.91/11.81)
45.0 (1.77)
mm (inch)
CD E
3
4
2
1
G
5
6
4
1
2
F
3
7
B
C
D
E
A
Esc
E
-
+
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