KROHNE BM 702 A EN - Manual (Page 32)

4
ELECTRICAL CONNECTIONS
32
BM 702 A
www.krohne.com 09/2009 - 4000643301 - MA BM 702 A R01 en
4.4 Networks
4.4.1 General information
The device uses the HART ® communication protocol. This protocol agrees with the HART ®
Communication Foundation standard. The device can be connected either via point-to-point or
operate in a multi-drop network of up to 15 devices.
The output is factory-set to communicate point-to-point.
4.4.2 Point-to-point connection
Figure 4-6: Point-to-point connection (non-Ex)
1 Address of the device (0 for point-to-point connection)
2 4...20 mA + HART
®
3 Resistor for HART ® communication
4 Power supply
5 HART
® converter
6 HART ® communication software
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