4 Wiring Promag 53 PROFIBUS-DP/-PA
56 Endress+Hauser
4.3.3 Fieldbus connector
Note:
This connector can only be used for a PROFIBUS-PA device.
The connection technology of PROFIBUS-PA allows measuring devices to be con-
nected to the fieldbus via uniform mechanical connections such as T-boxes, junction
boxes, etc. This connection technology using 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 opera-
tion. The communications will not be interrupted.
• This simplifies installation and maintenance significantly.
• Existing cable infrastructures can be used and expanded instantly, e.g. when con-
structing new star distributors using 4-channel or 8-channel junction boxes.
The Promag 53 can therefore be supplied with a ready-mounted fieldbus connector.
Fieldbus connectors for retrofitting can be ordered from E+H as a spare part
(see Page 111).
Fig. 35: Connectors for connecting to the PROFIBUS-PA
A = Aluminum field housing
B = Stainless steel field housing
C = Protective cap for connector
D = Fieldbus connector
E = Adapter PG 13.5 / M 20.5
F = Connector on housing (male)
G = Connector (female)
Pin assignment / color codes:
1 = Brown wire: PA+ (Terminal 26)
2 = Not connected
3 = Blue wire: PA– (Terminal 27)
4 = Black wire: Grounding (Notes about connection
→ Page 54, 55)
5 = Female contact in the center not connected
6 = Positioning groove
7 = Positioning mark
F06-xxxPBxxx-04-xx-xx-xx-000
34
150/300 mm
45.0 mm
(1.766")
PG 13.5
M 12 x 1
21
B
C D E
4
1
2
F
G
3
5
6
7
A
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