Endress+Hauser Proline Prowirl F 200, Operating Instructions Manual

Page: 31 / 224

Proline Prowirl F 200 PROFIBUS PA Electrical connection
Hauser 31
7.1.4 Terminal assignment
Transmitter
Connection version for PROFIBUS PA, pulse/frequency/switch output
+
1
–
2
–
4
+
3
1 2 3
A0013570
+
1
–
2
–
4
+
3
1 2 3
A0018161
Maximum number of terminals Maximum number of terminals for order code for
"Accessory mounted", option NA "Overvoltage
protection"
1
2
3 Output 1: PROFIBUS PA
Output 2 (passive: pulse/frequency/switch output
Ground terminal for cable shield
Order code for "Output" Terminal numbers
Output 1 Output 2
1 (+) 2 (-) 3 (+) 4 (-)
Option G
1) 2)
PROFIBUS PA
Pulse/frequency/switch output
(passive)
1) Output 1 must always be used; output 2 is optional.
2) PROFIBUS PA with integrated reverse polarity protection.
7.1.5 Pin assignment of device plug
1
2
4
3
Pin Assignment Coding Plug/socket
1 + PROFIBUS PA + A Plug
2 Grounding
3 - PROFIBUS PA –
4 Not assigned
7.1.6 Shielding and grounding
Optimal electromagnetic compatibility (EMC) of the fieldbus system can be guaranteed
only if the system components and, in particular, the lines are shielded and the shield
forms as complete a cover as possible. A shield coverage of 90 %is ideal.
1. To ensure optimal EMC protection, connect the shield to the reference ground as
often as possible.
2. For reasons concerning explosion protection, it is recommended that grounding be
dispensed with.
To comply with both requirements, there are basically three different types of shielding in
the fieldbus system:
• Shielding at both ends
• Shielding at one end on the feed side with capacitance termination at the field device
• Shielding at one end on the feed side