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KROHNE BM 70 M User Manual

Page 98

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12

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