Endress+Hauser Proline Promag 10 - HART Connection

4 Wiring PROline Promag 10
42 Endress+Hauser
4.2.3 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.
!
Note!
• The measuring loop's minimum load must be at least 250 Ω.
• The CURRENT SPAN function must be set to “4–20 mA HART” (factory setting).
• See also the documentation issued by the HART Communication Foundation, and in
particular HCF LIT 20: “HART, a technical summary”.
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. 28: Electrical connection of the HART terminal:
1 = HART communicator terminal, 2 = Power supply, 3 = Shield, 4 = Other evaluation devices or PLC with
passive input
Connection of a PC with an operating software
In order to connect a PC with an operating software (e.g. “FieldTool™”), a HART modem
(e.g. “Commubox FXA 191”) is needed.
Fig. 29: Electrical connection of Commubox FXA 191:
1 = PC with operating software, 2 = Power supply, 3 = Shielding, 4 = Other switching units or PLC with passive
input, 5 = HART modem, e.g. Commubox FXA 191
I
O
+26
250
-27
1
2
3
4
F06-xxxxxxxx-04-xx-xx-xx-012
+26
250
-27
RS 232
1
3
5
4
2
F06-xxxxxxxx-04-xx-xx-xx-013§