Delta DVP-0204520-03 - Manual (Page 25)

DeviceNet Network Scanner DVPDNET-SL
6 Bit-Strobe Command
6.1 Principle of Bit-Strobe
Bit-strobe is one of the standard I/O transmission methods for DeviceNet. The length of command is fixed to 8
bytes (i.e. 64 bits), and every bit corresponds to a slave.
Corresponding nodes on the network
PLC
device
b15 b14 b13 … b1 b0
D6282 Node 15 Node 14 Node 13 … Node 1 Node 0
D6283 Node 31 Node 30 Node 29 … Node 17 Node 16
D6284 Node 47 Node 46 Node 45 … Node 33 Node 32
D6285 Node 63 Node 62 Node 61 … Node 49 Node 48
When b0 of D6282 = 0, the node 0 equipment will be selected, and it will need to respond with a message to
the master. When b0 and b1 of D6282 = 0, the node 0 and node 1 equipment will be selected, and they will be
to respond with a message to the master.
b0 b1 b17 b15 b14 b30 b2 b18 b16 b31
D8283
Node 0
Node 1
Node 2
Node 14
D6282
In the bit-strobe mode, the master will not send control data to the slave node. However, when its
corresponding bit is set to 0, the slave node will have to respond with I/O data to the master. When its
corresponding bit is set to 1, the slave node will not have to respond with I/O data to the master.
DVP-PLC Operation Manual 22