Festo Кабели и принадлежности - Manual (Page 44)

3. Installation
3−8
Festo P.BE−SPC200−COM−PDP−E N en 0901c
Terminating resistor (end of cable)
Bus segments must be concluded at both ends with a terminĆ
ating resistor. This also applies if the module or the communiĆ
cation processor is at the end of the bus cable.
Recommendation: Use plugs with an integrated terminating
resistor if the SPC200 is installed at the end of a bus segĆ
ment. If necessary, switch in the terminating resistor.
The following diagram shows the terminating resistor comĆ
bination of cable A as per EN 50170.
1
Pin 6:
Power supply
2
Pin 3:
RxD/TxD−P
3
Pin 8:
RxD/TxD−N
4
Pin 5:
DGND
Pin 6
Pin 3
Pin 8
Pin 5
390 ġ
220 ġ
390 ġ
1
2
3
4
Fig. 3/3: Cable termination as per EN 50170, (cable A)