Rockwell Automation AutoMax ControlNet Communication Interface Module - Manual (Page 61)

AutoMax ControlNet Module Page 61
Publication number DSMBCN-UM001B-EN-P February 2003
Name Value Meaning
NAM_SEND_ALIVE 07h Transitional state in going
online
NAM_WATCH 08h Transitional state in going
online
NAM_LISTEN 09h Transitional state in going
online
NAM_ATTACHED 0Ch Online
Figure 20 NAM State Table
The state must be NAM_ATTACHED to send messages and scan I/O.
All other states are intermediate states as the MBCN becomes attached to
the network. An application should check the NAM state before it starts
accessing data.
Keeper State
On a ControlNet network, a keeper is a node that stores and distributes
the network parameters, as well as storing the network configuration
database.
Refer to the ControlNet specification, Part 10, Table 10-246 for detailed
information on Keeper object operating states.
An application can use the KeeperState register (9476) to determine the
current keeper operating state. The following table lists the possible
values.
Name Value 7-Segment
LED
KPR_STE_OFFLINE 0 6
KPR_STE_TUI_WAIT 1 6
KPR_STE_TUI_POLL 2 6
KPR_STE_BACKUP 3 N/A
KPR_STE_MASTER_VERIFY 4 6
KPR_STE_MASTER 5 N/A
KPR_STE_FAULTED_BACKUP 6 3
KPR_STE_FAULTED_MASTER_VERIFY 7 6
KPR_STE_FAULTED_MASTER 8 2
KPR_STE_NET_CHANGE_BACKUP 9 4
KPR_STE_NET_CHANGE_MASTER 10 4
KPR_STE_NET_CHANGE_FAULTED_BACKUP 11 5