Rockwell Automation DeviceNet Communications Module - Manual (Page 36)

4-10 DeviceNet Communications Module
4.8 Setting a Fault Action
By default, when communications are disrupted (for example, a
cable is disconnected) or the scanner is idle, the drive responds by
faulting if it is using I/O from the network.
You can configure a different response to communication
disruptions using Comm Flt Action (7) and a different response to
an idle scanner using Idle Flt Action (8).
To set the fault action:
Set the values of Comm Flt Action (7) and Idle Flt Action (8) to the
desired responses as shown in table 4.6. See figure 4.11 for sample
LCD OIM Fault Action Screens.
!
ATTENTION: Comm Flt Action (7) and Idle Flt Action
(8) let you determine the action of the module and
connected drive if communications are disrupted or
the scanner is idle. By default, these parameters fault
the drive. You can set these parameters so that the
drive continues to run. Precautions should be taken
to ensure that the settings of these parameters do
not create a hazard of injury or equipment damage.
Failure to observe these precautions could result in
bodily injury or damage to, or destruction of,
equipment.
Table 4.6 – Selections for Drive Response to Communication Fault
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 after a
communications disruption. This does not
command a stop.
3 Hold Last The drive continues in its present state
after a communications disruption.
4 Send Flt
Cfg The drive is sent the data that you set in
the fault configuration parameters Flt Cfg
Logic (10) and Flt Config Ref (11).