1
3
2
4 5 6
1
3
2
4 5 6
1
3
2
4 5 6
1
3
2
4 5 6
E_F60
Shield at bus master side
connected to earth
termination resistors used
Shield at bus device side
connected to earth
termination resistors used
Shield at bus master side
connected to earth
termination resistors not used
Shield at bus device side
connected to earth
termination resistors not used
TR
-P
B(+)
A(-)
T
R
-N
Common
HF Shield
2.2nF
(internal)
TR
-P
B(+)
A(-)
TR
-N
Common
HF Shield
2.2nF
(internal)
TR
-P
B(+)
A(-)
TR
-N
Common
HF Shield
2.2nF
(internal)
TR
-P
B(+)
A(-)
TR
-N
Common
HF Shield
2.2nF
(internal)
Fig. 31: Modbus® RTU – Shielding Options (3-wire + Shield)
97
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EMR-3MP0
2 Hardware
2.2 EMR-3MP0 – Installation and Wiring