Selecting master-slave or peer-to-peer hierarchy, Setting a master-slave hierarchy (scanner-to-drive – Rockwell Automation 20-COMM-E PowerFlex EtherNet/IP Adapter User Manual
Page 36
3-8
Configuring the Adapter
20-COMM-E EtherNet/IP Adapter User Manual
Publication 20COMM-UM010G-EN-P
For example, set Parameter 90 - [Speed Ref A Sel] in a PowerFlex 70 or
700 drive to ‘22’ (DPI Port 5) so that the drive uses the Reference from
the adapter. Also, verify that the mask parameters (for example,
Parameter 276 - [Logic Mask]) in the drive are configured to receive the
desired logic from the adapter. See the documentation for your drive for
details.
4. If you enabled one or more Datalinks, configure parameters in the drive
to determine the source and destination of data in the Datalinks.
When using Datalinks, up to 8 drive [Data In xx] parameters
(300…307) and/or up to 8 [Data Out xx] parameters (310…317) must
be assigned to point to the appropriate drive parameters for your
application. See
for an example.
5. Reset the adapter (see
Resetting the Adapter on page 3-16
The adapter is ready to receive I/O. You must now configure the adapter to
receive I/O from a master or peer device. See
. If you select a Master-Slave hierarchy, you must
also configure the master to communicate with the adapter. See
,
.
Selecting Master-Slave or
Peer-to-Peer Hierarchy
A hierarchy determines the type of device with which the adapter exchanges
data. In a Master-Slave hierarchy, the adapter exchanges data with a master,
such as a scanner or bridge (1756-ENBT, 1756-EN2T, 1747-L5-xxx, and so
forth). In a Peer-to-Peer hierarchy, the adapter exchanges data with one or
more EtherNet/IP adapters in other drives. (The drives must have
compatible Logic Command/Status words.)
For both Master-Slave and Peer-to-Peer hierarchies, the devices exchanging
data must be on the same IP subnet. See ‘IP Addresses’ in the
information about IP subnets.
Setting a Master-Slave Hierarchy (Scanner-to-Drive Communication)
1. Enable the desired I/O in Parameter 23 - [DPI I/O Cfg].
See
Setting the I/O Configuration on page 3-7
2. Set the bits in Parameter 35 - [M-S Input].
This parameter determines the data received from the master by the
drive. A ‘1’ enables the I/O and a ‘0’ disables the I/O.
Bit
Description
0
Logic Command/Reference (Default)
1
Datalink A Input
2
Datalink B Input
3
Datalink C Input
4
Datalink D Input
5…15
Not Used
Port 5 Device
20-COMM-E
Parameter #: 35
M-S Input
x x x x x x x x x x x 0 0 0 0
1
Cmd/Ref
b00