Endress+Hauser FOUNDATION Fieldbus Micropilot FMR51 Brief Operating Instructions page 20

Electrical connection
Terminal assignment PROFIBUS PA / FOUNDATION Fieldbus
A
2
1
 4 Terminal assignment PROFIBUS PA / FOUNDATION Fieldbus
A Without integrated overvoltage protection
B With integrated overvoltage protection
1 Connection, PROFIBUS PA / FOUNDATION Fieldbus: terminals 1 and 2, without integrated
overvoltage protection
2 Connection, switch output (open collector): terminals 3 and 4, without integrated overvoltage
protection
3 Connection, switch output (open collector): terminals 3 and 4, with integrated overvoltage protection
4 Connection, PROFIBUS PA / FOUNDATION Fieldbus: terminals 1 and 2, with integrated overvoltage
protection
5 Terminal for cable shield
Block diagram PROFIBUS PA / FOUNDATION Fieldbus
 5 Block diagram PROFIBUS PA / FOUNDATION Fieldbus
1 Cable screen; observe cable specification
2 Connection PROFIBUS PA / FOUNDATION Fieldbus
3 Measuring device
4 Switch output (open collector)
6.1.2 Device plug
In the case of the device versions with a plug, the housing does not need to be opened to
connect the signal cable.
20
5
2
1
Micropilot FMR51, FMR52 FOUNDATION Fieldbus
B
3
+
1
I
-
2
+
Y
3
-
4
4
3
4
5
A0036500
A0036530
Endress+Hauser