Rockwell Automation 1788-DNBO DeviceNet Daughtercard Installation Instructions - Manual (Page 12)

12 DeviceNet Daughtercard
Publication 1788-IN053A-EN-P - December 2001
Module Status Register Bit Definitions
The bits of the Module Status Register are defined as follows:
Status Structure
The controller receives status information concerning the 1788-DNBO daughtercard’s ability
to exchange DeviceNet messages with other nodes by reading from the status structure in the
daughtercard. The daughtercard periodically updates the contents of the status structure and
copies its contents to the controller. The status structure consists of several tables. The bit
position of each of the 64 bits that make up a given status table directly corresponds to the
node address of a device.
Bit Name Description
0 Run 1 = in run mode.
0 = in idle mode.
1 Fault 1 = network is faulted.
2 DisableNetwork 1 = network is disabled.
3 DeviceFailure 1 = device failure exists (examine the status structure for causes).
4 AutoverifyFailure 1 = at least one device has failed to be initialized by the daughtercard.
5 CommFailure 1 = communication failure exists.
6 DupNodeFail 1 = failure due to duplicate node address.
7 DnetPowerDetect 1 = DeviceNet power failure.
8 - 31 {Reserved} unused