GEFRAN
——————
Interface Board DeviceNet
——————
66
7.7.5 CNXN status
The following states of the connections are displayed:
1.
PE
- Predefined Mode Explicit connection status .
2.
PP
- Predefined Mode Polled connection status .
3.
UE
- UCMM Explicit connection status.
Every single state can assume following values:
·
0 = does not exist.
·
1 = Configuring.
·
2 = Waiting for ID.
·
3 = Established.
·
4 = Timed-out.
·
5 = Deferred.
The following table shows the values of the single states corresponding to specific
operating conditions
CONDITION
PE
PP
UE
Disconnected SBI card
0
0
0
1)
Connected PLC
3
3
0
1)
Disconnected PLC
3
4 or 0
0
1)
dn6010
1)
UE might have values different from zero occasionally for some seconds from
the allocation by PLC.
7.7.6 I/O CNXN status
The following states of the I/O connections are displayed:
1.
EPR
Expected Packet Rate; milliseconds indicating the Timeout, set by the
Master.
2.
C
Consuption Length; number of byte consumed (direction Master->Slave);
set by the Master, for the board SBI is 8.
3.
P
Produced Length; number of byte produced (direction Slave->Master) ; set
by the Master, for the board SBI is 8.
7.7.7 DUP MAC ID TEST (DMC)
The SBI board carries out a Test to check if there is another node with the same
address (Duplicate MAC ID) in the network; if there is a duplication of a node ad-