Rockwell Automation RECOMM-485 RS485 DFI Communications Module - Manual (Page 26)

4-4 RS485 DF1 Communications Module
4.6 Setting the I/O Configuration
The I/O configuration determines the type of data sent to the drive.
This is a two-part process: enabling/disabling the data transmitted
between the module and the drive, and identifying the data
transmitted between the module and the master (i.e., scanner).
Step 1. Enable or disable the data transmitted between the
module and the drive by setting the bits in module
parameter 12 (DPI I/O Config).
A “1” enables the I/O. A “0” disables the I/O. Bit 0 is the
right-most bit. In figure 4.5, it is highlighted and equals
“1.”
Step 2. If Logic Command/Reference is enabled (default),
configure the parameters in the drive to accept the Logic
Command and Reference from the module. For example,
set Speed Ref A Sel (SP600 drive parameter 90) to
“Network” so that the drive uses the Reference from the
module. Also, verify that SP600 drive parameter 89 (Logic
Source Sel) is configured to receive the desired logic from
the module.
Step 3. If you enabled one or more Datalinks (optional), configure
parameters in the drive to determine the source and
destination of data in the Datalink(s). Also, ensure that the
RS485 DF1 module is the only module using the enabled
Datalink(s).
Step 4. Reset the module. Refer to section 4.7.2, Resetting the
Module.
The module is ready to receive I/O from the master (i.e., scanner).
You must now configure the scanner to recognize and transmit I/O
to the module.
Figure 4.5 – I/O Configuration Screen on an LCD OIM
Port 5 Device
RECOMM-485
Parameter #: 12
DPI I/O Config
x x x x x x x x x x x 0 0 0 0
1
Cmd/Ref b00
Bit Description
0 Logic Command/Reference (Default)
1 Datalink A
2 Datalink B
3 Datalink C
4 Datalink D
5 - 15 Not Used