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ELECTRICAL CONNECTIONS
4
55
OPTIFLEX 1300 C
www.krohne.com
01/2008 • 4000172301 - HB OPTIFLEX 1300 R02 en
4.5.3 Multi-drop networks
Figure 4-8:
Multi-drop network (non-Ex)
1
Address of the instrument (n+1 for multidrop networks)
2
Address of the instrument (1 for multidrop networks)
3
4 mA + HART
®
4
Resistor for HART
®
communication
5
Power supply
6
HART
®
modem
7
HART
®
communication device
-
+
2
1
4
5
3
6
1
7
3
3
HB_OPTIFLEX1300_EN_D4_080428.book Page 55 Tuesday, April 29, 2008 2:47 PM