User Manual

ELECTRICAL CONNECTIONS 4
47
OPTIWAVE 7400-24 C
www.krohne.com12/2015 - 4004901901 - MA OPTIWAVE7400-24 R01 fr
4.6 Networks
4.6.1 General information
The device uses the HART® communication protocol. This protocol agrees with the HART®
Communication Foundation standard. The device can be connected point-to-point. It can also
have a polling address of 1 to in a multi-drop network.
The device output is factory-set to communicate point-to-point. To change the communication
mode from point-to-point
point-to-pointpoint-to-point
point-to-point to multi-drop
multi-dropmulti-drop
multi-drop.
4.6.2 Point-to-point connection
Figure 4-7: 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