Publication PSS-UM001A-EN-P – December 2016
Chapter 2
What Is the H Series Fieldbus DeviceNet
Adapter?
This chapter describes the H Series Fieldbus I/O DeviceNet
adapter, including descriptions of the adapter’s features and
functionality.
See the Following Sections: Page:
Use the Adapter 2-1
Understand the DeviceNet Network
and Subnet
2-3
Adapter Features 2-4
Communicate Through the Adapter 2-8
Communicate With I/O Modules 2-10
Use Diagnostic Tables 2-11
Chapter Summary and What’s Next 2-12
Use the Adapter
The adapter resides on the primary DeviceNet network and the
Subnet simultaneously.
IMPORTANT
The PointBus maintains all DeviceNet network protocol, but also
offers confi guration capabilities.
The adapter interfaces between DeviceNet devices and H Series
Fieldbus I/O modules. The graphic below shows the adapter on the
DeviceNet network and PointBus.
0
1
2
3
02
13
46
57
4
5
6
7
MOD
NET
PSST8M12A
24V dc Out
0
1
2
3
02
13
46
57
4
5
6
7
MOD
NET
PSSN8M12A
24V dc In
Mod
PSSV32A
Net
Fault
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
Computer with PLC
Programming Software
ControlNet Network
ControlLogix
Chassis
1784-PCD
PCMCIA
Card
PSSCDM12A
Adapter
DeviceNet Network
Computer with
RSNetWorx for
DeviceNet Software
H Series Fieldbus I/O Modules
See page 2-8 for an
explanation of the
number sequence.
After you have installed your adapter into a H Series Fieldbus I/O
system, you must perform the following tasks:
1. Set Subnet/Backplane Baudrate
2. Set Subnet/Backplane I/O Module Addresses
3. Confi gure the Subnet I/O
4. Confi gure the Primary DeviceNet Network
The steps mentioned above are explained briefl y here, and then
in greater detail throughout this manual. You must complete the
steps for the adapter to work with DeviceNet masters (e.g. Rockwell
Automation 1756-DNB) on the primary network and Subnet modules.
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