Publication PSS-UM001A-EN-P – December 2016
What is the H Series Fieldbus DeviceNet Adapter?
2-3
Understand the DeviceNet
Network and Subnet
DeviceNet Network
Your adapter serves as a slave to DeviceNet masters. The adapter
receives data from, and returns data to, the master through the
following I/O connections:
• Change of State (COS)
• Cyclic
• Polled
• Strobe
Backplane/Subnet Network
On the Backplane/Subnet, your adapter acts as a scanner and is the
master of the Subnet modules. The adapter performs the following
functions:
• Exchanges I/O data with devices on the Backplane/Subnet
• Collects I/O data from the Backplane/Subnet and sends it to
devices on the DeviceNet network (e.g., scanners or controllers)
• Supplies power to the backplane I/O modules (See Appendix
A for power supply rules regarding I/O modules power
requirements.)
Data Collection
The adapter collects I/O data from up to 63 modules via the
Backplane/Subnet. The I/O modules appear on the primary
DeviceNet network as a single node, though, and require only one
DeviceNet node address.
IMPORTANT
If Automatic Device Replacement (ADR) is enabled on the
adapter, you can only connect up to 62 modules via the Subnet.
For more information on ADR, see page 2-6.
Module Power
The adapter supplies 5V logic power to H Series Fieldbus I/O
modules by converting 24VDC fi eld power to PointBus 5V power.
You can connect up to 63 I/O modules to each adapter and you can
power the backplane I/O modules from the adapter (with a maximum
of 10A of fi eld power). You may use the integrated, isolated 24VDC
expansion power unit (PSSSE24A) to power additional I/O modules,
as shown below.
For more information on the PSSSE24A expansion power unit,
see the H Series Fieldbus I/O 24VDC Expansion Power Supply
Installation Instructions, publication E105P.
0
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PSST8M12A
24V dc Out
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24V dc In
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PSSN8M12A
24V dc In
Mod
PSSV32A
Net
Fault
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PSST8M12A
24V dc Out
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PSST8M12A
24V dc Out
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MOD
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PSSN8M12A
24V dc In
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PSST8M12A
24V dc Out
0
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MOD
NET
PSSN8M12A
24V dc In
0
1
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2
1
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MOD
NET
PSST8M12A
24V dc Out
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2
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MOD
NET
PSSN8M12A
24V dc In
PSSSE24A
24V dc Power Supply
SYSTEM
POWER
P
O
W
E
R
A
U
X
FIELD
POWER
PSSCDM12A
Adapter
Status
DeviceNet
Status
PointBus
Status
System
Power
Adapter
Power
DeviceNet Out
DeviceNet In
PWR
x1
6
0
8
2
4
x10
6
0
8
2
4
PSSCDM12A
Adapter
PSSSE24A
Expansion
Power Unit
H Series Fieldbus
I/O Modules
H Series Fieldbus
I/O Modules
PSSV32A
32 Point
Valve Driver
Valves
Содержание H Series
Страница 135: ...DeviceNet Media Design and Installation Guide...
Страница 144: ...Publication DNET UM072C EN P July 2004 Table of Contents iv...
Страница 170: ...Publication DNET UM072C EN P July 2004 1 26 Get Started Notes...
Страница 194: ...Publication DNET UM072C EN P July 2004 2 24 Identify Cable System Components Notes...
Страница 212: ...Publication DNET UM072C EN P July 2004 3 18 Make Cable Connections Notes...
Страница 238: ...Publication DNET UM072C EN P July 2004 4 26 Determine Power Requirements Notes...
Страница 248: ...Publication DNET UM072C EN P July 2004 5 10 Correct and Prevent Network Problems Notes...
Страница 250: ...Publication DNET UM072C EN P July 2004 A 2 Understand Select NEC Topics Notes...
Страница 263: ......
Страница 267: ...Isysnet Serial Bus System Selection Guide Pneumatic...
Страница 287: ...H Series Fieldbus DeviceNet Adapters PSSCDM12A PSSCDM18PA User Manual...
