KROHNE MFC 300 EN - Manual (Page 66)

4
ELECTRICAL CONNECTIONS
66
MFC 300
www.krohne.com 02/2012 - 4000498602 - MA MFC 300 R03 en
4.10.6 HART ® connection
HART ® connection active (point-to-point)
The parallel resistance to the HART ® communicator must be R ≥ 230 Ω.
INFORMATION!
•
In the basic I/O the current output at connection terminals A+/A-/A always has HART ®
capability.
• For modular I/O and Ex i I/O, only the current output module for the connection terminals
C/C- has HART
® capability.
Figure 4-33: HART ® connection active (I
a
)
1 Basic I/O: terminals A and A+
2 Modular I/O: terminals C- and C
3 HART
® communicator
.book Page 66 Monday, February 6, 2012 11:01 AM