HCPL-0710 View Datasheet(PDF) - HP => Agilent Technologies
Part Name
Description
MFG CO.
'HCPL-0710' PDF : 17 Pages View PDF
AC LINE
NODE/APP SPECIFIC
uP/CAN
HCPL
x710
HCPL
x710
TRANSCEIVER
LOCAL
NODE
SUPPLY
5 V REG.
GALVANIC
ISOLATION
BOUNDARY
DRAIN/SHIELD
SIGNAL
POWER
NETWORK
POWER
SUPPLY
V+ (SIGNAL)
V– (SIGNAL)
V+ (POWER)
V– (POWER)
Figure 18. Typical DeviceNet node.
Implementing DeviceNet and SDS
with the HCPL-x710
With transmission rates up to 1
Mbit/s, both DeviceNet and SDS
are based upon the same
broadcast-oriented, communica-
tions protocol — the Controller
Area Network (CAN). Three types
of isolated nodes are
recommended for use on these
networks: Isolated Node Powered
by the Network (Figure 19),
Isolated Node with Transceiver
Powered by the Network (Figure
20), and Isolated Node Providing
Power to the Network (Figure 21).
Isolated Node Powered by the
Network
This type of node is very flexible
and as can be seen in Figure 19, is
regarded as “isolated” because not
all of its components have the
same ground reference. Yet, all
components are still powered by
the network. This node contains
two regulators: one is isolated and
powers the CAN controller, node-
specific application and isolated
(node) side of the two optocoup-
lers while the other is non-
isolated. The non-isolated
regulator supplies the transceiver
and the non-isolated (network)
half of the two optocouplers.
NODE/APP SPECIFIC
uP/CAN
HCPL
x710
HCPL
x710
TRANSCEIVER
DRAIN/SHIELD
SIGNAL
POWER
NETWORK
POWER
SUPPLY
Figure 19. Isolated node powered by the network.
12
REG.
ISOLATED
SWITCHING
POWER
SUPPLY
GALVANIC
ISOLATION
BOUNDARY
V+ (SIGNAL)
V– (SIGNAL)
V+ (POWER)
V– (POWER)
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