KROHNE BM 70 M User Manual
Page 98
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BM 70M-EEx/ BM 70Mi-EEx
5.2.4 Terminal
assignment
Power supply
The power connection is of the non-intrinsically safe type for all variants of BM 70 M.-EEx.
For detailed information and connection plan see Part 1: Installation and operating instructions for
BM 70 M, Section 7.6 Electrical connection
5.2.5 Terminal assignment - I/O functions
Non-intrinsically safe I/O functions and intrinsically safe I/O functions are available for the
BM70M.-EEx:
Non-intrinsically safe I/O functions BM 70 M-EEx
I/O function
(1)
Diagram
Variant
Electrical
data
Digital input
+ switching output
+ current output HART
passive
passive
active
1
Current output
active
2
RS485 interface
+ current output
active
3
BM 70 M
See Section 3.1.4
(1)
only for connection to circuits with functional extra-low voltage with safety separation (PELV)
Intrinsically safe I/O functions BM 70 Mi-EEx
I/O function
Diagram
Variant
Max. safety data
Current output HART
passive
4
Current output HART
+ switching output
passive
passive
5
Fieldbus
Profibus PA
passive
6
Fieldbus
Fieldbus Foundation
passive
6
Fieldbus
Profibus PA /
+ current output HART
passive
passive
7
Fieldbus
Fieldbus Foundation
+ current output
passive
passive
7
Fieldbus
Profibus PA
+ switching output
passive
passive
8
Fieldbus
Fieldbus Foundation
+ switching output
passive
passive
8
BM 70 Mi
See Section 3.1.4
For detailed information and connection plan see Part 1: Installation and operating instructions for
BM 70 M, Section 7.6 Electrical connection