Endress+Hauser Promass 40 - HART Connection

Promass 40 4 Wiring
Endress+Hauser 19
4.1.3 HART connection
Users have the following connection options at their disposal:
• Direct connection to transmitter by means of terminals 26 / 27
• Connection by means of the 4...20 mA circuit.
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Note:
• The measuring loop's minimum load must be at least 250 Ω.
Connection of the HART handheld communicator
See also the documentation issued by the HART Communication Foundation, and in
particular HCF LIT 20: “HART, a technical summary”.
Fig. 11: Electrical connection of the HART handheld communicator:
1 = HART communicator, 2 = power supply, 3 = shield, 4 = other evaluation devices or PLC with passive input
Connecting a PC with operating software
In order to connect a personal computer with a operating software (e.g. “FieldTool™”) a
HART modem (e.g. Commubox FXA 191) is needed.
See also the documentation issued by the HART Communication Foundation, and in
particular HCF LIT 20: “HART, a technical summary”.
Fig. 12: Electrical connection of a PC with operating software:
1 = PC with operating software, 2 = power supply, 3 = shield, 4 = other evaluation devices or PLC with passive
input, 5 = HART modem, e.g. Commubox FXA 191
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