3 fieldbus connector – FMC Corporation - Talstar 80 Benutzerhandbuch
Seite 32
Wiring
Proline Promass 80 PROFIBUS PA
32
4.4.3
Fieldbus connector
!
Note!
The connector can only be used for PROFIBUS PA devices.
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 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 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.
a0005999
Fig. 23:
Connectors for connecting to the PROFIBUS PA
A
Aluminum field housing
B
Stainless steel field housing
C
Protection cap for connector
D
Fieldbus connector
E
Adapter PG 13.5 / M 20.5
F
Connector at housing (male)
G
Female connector
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
5
Middle female connector not assigned
6
Positioning groove
7
Positioning key
PG 13.5
M 12 x 1
150/300
(5.91/11.81)
45.0 (1.77)
mm (inch)
C
D
E
3
4
2
1
G
5
6
4
1
2
F
3
7
B
C
D
E
A
Esc
E
-
+