GE Industrial Solutions 6KCV301DNET - Manual (Page 31)

6KCV301DNET
31
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Interface card DeviceNet
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6.2.4 Status of allocation
The following states of allocation are displayed:
1. S - Software state DNET;1.the values, which this state can assume, are:
· 0 = initialization.
· 1 = Duplicate MAC ID Check in progress.
· 2 = Duplicate MAC ID Failed.
· 3 = Pre_Loop.
· 4 = Loop.
2. A - Bitmap of the allocations; the values are:
· 0 = No CNXN allocation.
· 1 = Explicit CNXN.
· 2 = Polled CNXN.
· 3 = Explicit + Polled CNXN.
3. M - MAC ID of the Master; the value is 255 if the Master has no allocation.
The following table shows the values of the single states corresponding to
specific operating conditions
CONDITION STATUS ALLOCATION MAC ID
Normal functioning, the PLC
has not allocate connection yet
0 255
Normal functioning, the PLC
has allocate connections
3
Normal functioning, connections
goes on Timeout
1
Duplicate MAD ID Check in
Progress 1)
1
Duplicate MAD ID failed 1) 2
Pre_Loop (need some sec.) 3
dn6000
MasterMAC
ID
4
0 255
1) See DMC handling.