KROHNE OPTIMASS with MFC 300 EN - Manual (Page 91)

91
9.9.4 HART ®
In the Basic I/O, the current output at terminals A+ / A- / A is always HART capable!
In the Modular I/O, only the current output module for terminals C / C - is HART-capable!
A+ A
C C-
R
only with Basic I/O terminals A+ / A
only with Modular I/O terminals C / C-
to HART Communicator
1
R
A
230
A A-
C C- C C-
I I
R
U
ext
only with Basic I/O terminals A / A-
only with Modular I/O terminals C / C-
to HART
®
Communicator
2
to next HART
®
device
II: I0% = 4 mA
Multidrop I: Ifix = 4 mA
Uext
a
32 V DC R
A
230
1
Ia HART ® Connection Active
2
Ip HART ® Connection Passive