BECKHOFF BK5200 - Manual (Page 28)

BK5200, BK5210, LC5200 DeviceNet
28 BK52x0
Electrical isolation
BK5200, BK5210 The Bus Coupler BK5200 have electrical isolation between the DeviceNet
bus cable and the communication electronics of the Bus Coupler.
BK5200 Block diagram
Node/App
Specific
uP / CAN
Transceiver
signal
power
V+
V-
Optical
Isolators
24 Power supply
Local source
Power
Supply
Network
Power Tap
Local
Node
Supply
5V Reg
drain/shield
MWP
Shield
Isolation
barrier
no
function
Potential levels of the BK5200 and BK5210
LC5200: The LC5200 does not provide electrical isolation from the fieldbus and
peripheral level. If the peripheral level nevertheless needs to have an
electrically isolated implementation, this can easily be achieved through the
use of isolating terminals (KL9xxx).