Rockwell Automation 20-COMM-B BACnet MS/TP Adapter - Manual (Page 34)

3-6 Configuring the Adapter
To set the fault configuration parameters
If you set Parameter 02 - [Comm Loss Action] to “Send Flt Cfg,” the
values in the following parameters are sent to the drive after a
communications fault occurs. You must set these parameters to values
required by your application.
Changes to these parameters take effect immediately. A reset is not required.
Set Parameter 03 - [Comm Loss Time] to a communication loss
timeout period suitable for your application. By default, the timeout is
set to ten (10) seconds. You can increase or decrease this value.
Alternatively, you can set the value to zero (0) to disable this timeout
feature so that the adapter does not detect communication losses.
Figure 3.4 Comm Loss Time Screen on an LCD HIM
Changes to this parameter take effect immediately. A reset is not required.
Parameter Name Description
04 Flt Cfg Logic A 16-bit value sent to the drive for Logic Command.
05 Flt Cfg Ref A 32-bit value (0 – 4294967295) sent to the drive as a
Reference.
Important: If the drive uses a 16-bit Reference, the
most significant word of the value must be set to zero (0)
or a fault will occur.
Setting the Comm Loss Time
!
ATTENTION: Risk of injury or equipment damage exists. Parameter
03 - [Comm Loss Time] lets you determine how long it will take the
adapter to detect network communication losses. By default, this
parameter sets the timeout to ten (10) seconds. You can set it so that the
duration is shorter, longer, or disabled. When set to disabled, this also
disables adapter Parameter 02 - [Comm Loss 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).
Port 5 Device
20-COMM-B
Parameter #: 03
Network Timeout
10 Sec
0 <> 180
Default = 10 Seconds