Parker H Series - Page 291

Publication PSS-UM001A-EN-P – December 2016
Related Terms
This manual uses the following terms:
Term Defi nition
Adapter The adapter interfaces between DeviceNet
devices and H Series Fieldbus I/O modules.
H Series Fieldbus I/O DeviceNet adapters
include the PSSCDM12A and PSSCDM18PA.
Auto
The H Series Fieldbus I/O DeviceNet adapter
Catalog supports the swapping of two identical modules
Replace connected to the adapter. That is, if a PSSN8M8A
is in slot 3 and another PSSN8M8A is in slot 7,
the two modules can be removed from the
H Series Fieldbus system and the slot 3 module
placed into slot 7, and vice-versa. When
Automatic Device Replacement (ADR) is active,
the swapped modules will be reconfi gured to
match the previous module in their new slot.
When ADR is not active, the confi guration
parameters will not be modifi ed, the swapped
modules must have identical confi guration and
values for their EDS fi le parameters.
Auto This refers to the ADR feature of a ControlLogix
Device System on DeviceNet. With ADR active, any
Replacement device on the DeviceNet link may be removed
(ADR) and replaced with an out-of-the-box checkmark
compliant DeviceNet device. The ADR feature
will result in downloading the values of the
confi guration parameters of the EDS fi le of the
removed device to the new device.
Auto A feature that lets the H Series Fieldbus I/O
Start system get “up and running” without the
Mode prerequisite to confi gure any of the EDS
parameters for the PointBus™ or H Series
Fieldbus I/O modules. Using Auto Start Mode will
result in a scan list within the adapter that stores
the modules identity information.
Autobaud A feature in devices (e.g., H Series Fieldbus
I/O modules) on the DeviceNet network that
causes them to listen to communications on the
network and set their own baudrate to match
the network rate.
Backplane The PointBus that consists of H Series Fieldbus
I/O modules connected to the H Series Fieldbus
DeviceNet adapter.
Baudrate Rate of communications between devices on the
DeviceNet network. Backplane baudrate is used
for the PSSCMD12A and PSSCDM18PA.
Change DeviceNet communications method in which the
of State adapter sends data based on detection of any
(COS) changed value within the input data. Data is
independently received based on a change of
state from the sender. Data in both directions can
be acknowledged or unacknowledged depending
on the run-time confi guration of the system.
Commissioning The period in time associated with post startup
activities. Commissioning implies that the
system has been validated and all confi guration
parameters are correct, all modules are in
good operating condition, and the adapter
scanlist is complete.
ControlFlash™ Utility software you can use to update the
adapter’s fi rmware with the most current boot
and application code.
Term Defi nition
Cyclic DeviceNet communications method in which
the adapter sends data cyclically based on a
confi gured time value. Data is independently
received cyclically from the sender. Data in
both directions can be acknowledged or
unacknowledged depending on the run time
confi guration of the system.
MACID Media Access Control Identifi er
(DeviceNet network address).
Master A DeviceNet network device (e.g., Rockwell
Automation 1771-SDN) that initiates
communication with DeviceNet slave devices
(e.g., H Series Fieldbus I/O modules) to
retrieve data. The master only receives
unprompted data when the slave is enabled
for COS and there is a change in the device’s
operating state.
Offl ine State of the adapter when it is not powered or
maintaining normal communication exchanges
with other DeviceNet devices.
Online State of the adapter when it is powered and
maintaining normal communication exchanges
with other DeviceNet devices.
PointBus The H Series Fieldbus I/O backplane PointBus
maintains all DeviceNet network protocol, but
also offers confi guration capabilities.
Polled DeviceNet communications method in which
a module sends data in response to
received data.
Primary The primary DeviceNet network is defi ned as
Network the DeviceNet link that provides the direct
connection between the H Series Fieldbus
DeviceNet adapter and a DeviceNet scanner.
RSNetWorx for Confi guration software for the adapter and
DeviceNet Subnet modules.
Scanlist The list of Subnet modules connected to the
adapter. When ADR is active, the scanlist
stores the confi gured values of each of the
Subnet modules’ confi gurable parameters.
When ADR is not active, the scanlist stores
only the module identity information.
Scanner Operating state of the H Series Fieldbus
DeviceNet adapter when it retrieves I/O data
from Subnet modules.
Slave A DeviceNet network device that cannot initiate
communication (except when confi gured with
COS enabled) but responds to a DeviceNet
master device.
Strobe Adapter sends data in response to the strobe
command. The single bit allocated to the
adapter in the strobe message is not used.
If the confi gured size of the input data (sent
from the adapter) is greater than 8 bytes, the
strobe connection establishment will fail. In this
case, the input size must be reconfi gured to
8 bytes or less.
Preface 3