
2.CYCLIC TRANSMISSION SPECIFICATION B-64164EN/01
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2.3.2 Allocation of a List of Participating Nodes
A list of the numbers of the nodes participating in the network can be
allocated in the PMC E area or the PMC R area to monitor the
participation state.
Related parameters
(1) Pa20: A list of participating nodes
Data structure
Participating node information as indicated below is allocated in the
PMC E area or the PMC R area.
Participating node information: 32 bytes
7 6 5 4 3 2 1 0
+0
Node 7 Node 6 Node 5 Node 4 Node 3 Node 2 Node 1
(Reserved)
+1
Node 15 Node 14 Node 13 Node 12 Node 11 Node 10 Node 9 Node 8
:
+30
Node 247 Node 246 Node 245 Node 244 Node 243 Node 242 Node 241 Node 240
+31
(Reserved)
Node 254 Node 253 Node 252 Node 251 Node 250 Node 249 Node 248
The bits corresponding to the node number of nodes
participating in the network (including the local node) are set to
1.
CAUTION
Usually, machining processing of the CNC is not
affected even when the CNC is disconnected from
FL-net communication.
When the entire system is to be stopped by the
detection of a disconnected communication device,
however, the CNC operation should be designed
according to the system so that, for example, the
CNC is placed in the emergency stop state
immediately, or that the CNC is stopped after the
tool is retracted to an allowable extent.
NOTE
1 A 32-byte area is always used.
2 When Pa21 (a list of participating nodes) is not set,
participating-node list information is not posted.
Pa21→