Rockwell Automation 20-COMM-M Modbus/TCP Adapter - Manual (Page 12)

1-4 Getting Started
20-COMM-M Modbus/TCP Adapter User Manual
Publication 20COMM-UM014C-EN-P
!
ATTENTION: Risk of injury or equipment damage exists. If
the adapter is transmitting control I/O to the drive, the drive may
fault when you reset the adapter. Determine how your drive will
respond before resetting an adapter.
!
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 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
or a faulted controller).
!
ATTENTION: Risk of injury or equipment damage exists.
When a system is configured for the first time, there may be
unintended or incorrect machine motion. Disconnect the motor
from the machine or process during initial system testing.
!
ATTENTION: Risk of injury or equipment damage exists.
Parameter 19 - [Msg I/O Timer] lets you determine how long it
will take the adapter to detect network communication losses. By
default, this parameter sets the timeout to five seconds. You can
set it so that the duration is shorter, longer, or disabled. When set
to disabled, this also disables Parameter 23 - [Comm Flt
Action]. Therefore, a communications fault action will be
ignored. Take precautions to ensure that the setting 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).
!
ATTENTION: Risk of injury or equipment damage exists. The
examples in this publication are intended solely for purposes of
example. There are many variables and requirements with any
application. Rockwell Automation, Inc. does not assume
responsibility or liability (to include intellectual property
liability) for actual use of the examples shown in this publication.
!
ATTENTION: For security reasons, it is recommended to
isolate the Modbus/TCP control network from the
enterprise-wide Ethernet network. This can be accomplished by:
•
Making the Modbus/TCP control network a stand-alone
network.
•
Placing a firewall between the Modbus/TCP control network
and the enterprise-wide Ethernet network.