Setting The Message I/O Timer - Allen-Bradley 20-COMM-M Modbus/TCP Adapter User Manual

3-10 Configuring the Adapter
Setting the Message I/O
Timer
20-COMM-M Modbus/TCP Adapter User Manual
Publication 20COMM-UM014C-EN-P
Setting the Fault Configuration Parameters
If you set Parameter 23 - [Comm Flt Action] to "Send Flt Cfg," the values
in the following parameters are sent to the drive after an I/O
communications fault and/or idle fault occurs. You must set these
parameters to values required by your application.
Parameter Description
26 - [Flt Cfg Logic] A 16-bit value sent to the drive for Logic Command.
27 - [Flt Cfg Ref] A 32-bit value (0...4294967295) sent to the drive as a Reference or Datalink.
28 - [Flt Cfg x1 In]
Important: If the drive uses a 16-bit Reference or 16-bit Datalinks, the most
through
significant word of the value must be set to zero (0) or a fault will occur.
35 - [Flt Cfg x2 In]
Changes to these parameters take effect immediately. A reset is not required.
Set Parameter 19 - [Msg I/O Timer] to a communication loss timeout
period suitable for your application. By default, the timeout is set to five (5)
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.
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 (5) seconds. You
can set it so that the duration is shorter, longer, or disabled. When
set to disabled, this also disables adapter 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).
Figure 3.12 Example Ref Adjust LCD HIM Screen
Port 5 Device
20-COMM-M
Parameter #: 19
Msg I/O Timer
5 sec
0 <> 180
Changes to this parameter takes effect immediately. A reset is not required.
Default = 5 sec