Rockwell Automation 2098-IPD-020-DN Ultra5000 Series Intelligent Positioning Drives with DeviceNet Reference Manual - Manual (Page 38)

Publication 2098-RM002A-EN-P – October 2001
4-14 Programming Reference
DeviceNet Comm Fault Action
The Ultra5000 with DeviceNet will fault depending on the Comm
Fault Action setting if the Output (command) Assembly is not
periodically updated after the Output Assembly has been written to.
You can configure the Ultra5000 with DeviceNet to perform a Comm
Fault Action if the Output Assembly is not periodically updated after
the I/O (or explicit) messaging connection has been established.
Possible reasons the Output Assembly may not be updated in this way
include the following:
• The messaging connection is closed
• The DeviceNet cable is unplugged
By default, the Ultra5000 drive with DeviceNet will fault and disable
the drive when a DeviceNet Comm Fault is triggered. However, you
can configure the drive to ignore the DeviceNet Comm Fault by
setting the Ultra5000 DNetConfigData Array Index 4 – DeviceNet
Comm Fault Action to 1 (Ignore).
DeviceNet Idle Fault Action
The Ultra5000 with DeviceNet will fault depending on the Idle Fault
Action setting if the Master (scanner) sends I/O idle messages
(zero-length messages) and the drive expects non-zero length I/O
messages.
By default, the Ultra5000 drive with DeviceNet will fault and disable
the drive when an Idle Fault is triggered. However , no action will be
taken if the Ultra5000 DNetConfigData Array Index 6 – I/O Receive
ATTENTION
!
Risk of severe bodily injury or equivalent damage
exists.
The Comm Fault Action value allows you to change
the default configuration, and to potentially allow the
drive to continue to operate when communication
with the DeviceNet Module is lost.
ATTENTION
!
Risk of severe bodily injury or equivalent damage
exists.
The Idle Fault Action value allows you to change the
default configuration, and to potentially allow the
drive to continue to operate when communication
with the DeviceNet Module is lost.