Rockwell Automation 25-COMM-P PowerFlex PROFIBUS DPV1 Adapter - Manual (Page 27)

Rockwell Automation Publication 520COM-UM004A-EN-E - November 2013 27
Configuring the Adapter Chapter 3
Enabling Datalinks To Read Data
Host parameters C161 [Opt Data In 1] through C164 [Opt Data In 4]
configure which parameters in the drive receive values from the network. To
configure these parameters, set them to the parameter number you wish to
correlate them to.
The following steps are required to enable Datalinks to read data:
1. Set the values of only the required number of contiguous network-to-drive
Datalinks needed to read data from the network and that are to be
included in the network I/O connection.
2. Reset the adapter by power cycling the drive.
After the above steps are complete, the adapter is ready to receive input data from
the master (controller). Next, configure the controller to recognize and transmit
I/O to the adapter. See
Configuring the PROFIBUS Master on page 31 .
Setting a Fault Action By default, when communications are disrupted (the network cable is
disconnected) and/or the controller is idle (in program mode or faulted), the
drive responds by faulting if it is using I/O from the network. You can configure a
different response to these events:
• Disrupted I/O communication by using
Device parameter
11 [Comm Flt Action] .
• An idle controller by using
Device parameter 12 [Idle Flt Action].
IMPORTANT Always use the Datalink parameters in consecutive numerical order, starting
with the first parameter. For example, use Host parameters C161, C162, and
C163 to configure three Datalinks to read data. Otherwise, the network I/O
connection will be larger than necessary, which needlessly increases controller
response time and memory usage.
ATTENTION: Risk of injury or equipment damage exists. Device parameters
11 [Comm Flt Action] and 12 [Idle Flt Action] respectively let you determine the
action of the adapter and drive if communications are disrupted or the
controller is idle. By default, these parameters fault the drive. You may
configure these parameters so that the drive continues to run, however,
precautions should be taken to ensure that the settings of these parameters do
not create a risk of injury or equipment damage. When commissioning the
drive, verify that your system responds correctly to various situations (a
disconnected network cable or a controller in idle state).