ControlBus statistics

The
ControlBus Statistics
 page provides the following information on the ControlLogix backplane:
Item
Description
RX bad Multicast CRC
The number of multicast received cyclic redundancy check (CRC) errors since the last power on, module reset, or Internet Cache Protocol (ICP) Object Reset Service received.
Multicast CRC Error Threshold
The threshold value for typing a fault state due to multicast CRC errors.
RX bad CRC
The number of directed receiver CRC errors since the last power on, module reset, or ICP Object Reset Service received.
RX Bus Timeouts
The number of receiver bus timeouts since the last power on, module reset, or ICP Reset Service received.
TX bad CRC
The number of transmit CRC errors since the last power on, module reset, or ICP Object Reset Service received.
TX Bus Timeouts
The number of transmit bus timeouts since the last power on, module reset, or ICP Reset Service received.
TX Retry Limit
The number of times to retry a frame if any transmit error occurs.
Status
The current status of the ICP object:
  • 0 (for bit 0) = Normal communications; RX disabled; reflects the current status of all receivers.
  • 1 (for bit 1) = Multicast RX disabled: reflects the current status of the multicast receiver.
  • 2 (for bit 2) = RA/GA miscompare; a persistent indication of a RA/GA miscompare.
Controlbus statistics
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