Wiring
Promag 50
52
Hauser
4.2.2
Terminal assignment
!
Note!
Functional values of the inputs and outputs
4.2.3
HART connection
Users have the following connection options at their disposal:
• Direct connection to transmitter by means of terminals 26(+) and 27 (
)
• Connection by means of the 4 to 20 mA circuit.
!
Note!
• The measuring loop's minimum load must be at least 250
.
• After commissioning, make the following settings:
– CURRENT SPAN function
"4–20 mA HART"
– Switch HART write protection on or off
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".
a0004586
Fig. 37:
Electrical connection of HART handheld Field Xpert SFX100
1
HART handheld Field Xpert SFX100
2
Auxiliary energy
3
Shielding
4
Other devices or PLC with passive input
Terminal No. (inputs / outputs)
Order version
20 (+) / 21 (–)
22 (+) / 23 (–)
24 (+) / 25 (–)
26 (+) / 27 (–)
50***-***********W
-
-
-
Current output
HART
50***-***********A
-
-
Frequency output
Current output
HART
50***-***********D
Status input
Status output
Frequency output
Current output
HART
50***-***********S
-
-
Frequency output
Ex i
Current output, Ex i,
active, HART
50***-***********T
-
-
Frequency output
Ex i
Current output, Ex i,
passive, HART
+26
-27
4
2
³
W
250
1
3
