Festo Кабели и принадлежности - Manual (Page 34)

3. Installation
3−6
Festo P.BE−SPC200−COM−CANDN−EN en 0511a
Bus power supply
The hardware basis of DeviceNet is the CAN bus. It is typical
for this bus that the field bus node is supplied with power via
the field bus cable.
Avoid long distances between the power unit for the bus
supply and the field bus node of the SPC200.
Recommendation:
Place the power unit approximately in the centre of the bus.
Module Rated voltage Tolerance
SPC200−COM−DN2 24 V 11 ... 30 V
SPC200−COM−CAN 24 V 11.5 ... 26.5 V
Bus slaves can have different tolerances as regards the bus
power supply.