Rockwell Automation 20-COMM-M Modbus/TCP Adapter - Manual (Page 31)

Configuring the Adapter 3-9
20-COMM-M Modbus/TCP Adapter User Manual
Publication 20COMM-UM014C-EN-P
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). For
example, configure the Datalinks in PowerFlex 70 and 700 drives by
setting Parameters 300 - [Data In A1] through 317 - [Data Out D2].
Also, ensure that the Modbus/TCP adapter is the only adapter using the
enabled Datalink(s).
4. Reset the adapter (see Resetting the Adapter on page 3-12 ).
The adapter is ready to receive I/O.
Setting a Communication
Fault Action By default, when I/O communications are disrupted (for example, a cable is
disconnected), the drive responds by faulting if it is using I/O from the
network. You can configure a different response to disrupted I/O
communication using Parameter 23 - [Comm Flt Action].
Changing the Fault Action
Set the value of Parameter 23 - [Comm Flt Action] to the desired
response:
Figure 3.11 Example Fault Action LCD HIM Screens
Changes to this parameter takes effect immediately. A reset is not required.
!
ATTENTION: Risk of injury or equipment damage exists.
Parameter 23 - [Comm Flt Action] lets you determine the
action of the adapter and connected drive if I/O communications
are disrupted. By default, this parameter faults the drive. You can
set this parameter so that the drive continues to run. Precautions
should be taken to ensure that the setting of this parameter does
not create a risk of injury or equipment damage. When
commissioning the drive, verify that your system responds
correctly to various situations (for example, a disconnected
cable).
Value Action Description
0 Fault The drive is faulted and stopped. (Default)
1 Stop The drive is stopped, but not faulted.
2 Zero Data The drive is sent 0 for output data. This does not command a stop.
3 Hold Last The drive continues in its present state.
4 Send Flt Cfg The drive is sent the data that you set in the fault configuration parameters
(Parameters 26 - [Flt Cfg Logic] through 35 - [Flt Cfg D2 In]).
Port 5 Device
20-COMM-M
Parameter #: 23
Comm Flt Action
0
Fault