Rockwell Automation 20-COMM-I Interbus Adapter - Manual (Page 25)

Configuring the Adapter 3-3
The I/O configuration determines the data that is sent to and from the
drive. This is a two part process: enabling/disabling the data transmitted
between the adapter and drive, and identifying the data transmitted
between the adapter and the scanner.
1. Enable or disable the data transmitted between the adapter and drive.
A “1” enables the I/O
A “0” disables the I/O
Set the bits in Parameter 8 - [DPI I/O Config]:
Figure 3.1 I/O Configuration Screen on an LCD HIM
Bit 0 is the right-most bit. In Figure 3.1 , it is highlighted and equals
“1.”
2. If Logic Command/Reference is enabled, configure the parameters in
the drive to accept the logic and Reference from the adapter. For
example, set Parameter 90 - [Speed Ref A Sel] in a PowerFlex 70
or 700 drive to “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.
3. If you enabled one or more Datalinks, configure parameters in the
drive to determine the source and destination of data in the
Datalink(s). Also, ensure that the Interbus adapter is the only adapter
using the enabled Datalink(s).
Setting the I/O Configuration
Bit Description
0 Logic Command/Reference (Default)
1 Datalink A
2 Datalink B
3 Datalink C
4 Datalink D
5 - 16 Not Used
Port 5 Device
20-COMM-I
Parameter #: 8
DPI I/O Config
x x x x x x x x x x x 0 0 0 0
1
Cmd/Ref b00
20COMM-UM007A-EN-P.book Page 3 Tuesday, January 22, 2002 10:52 AM