Chapter 11 DeviceNet Master Scanner Module AS01DNET-A
11-31
1
Symbol:
DNETRW
D1S1
S2
S 3
S4
S5
S 6
S7
S8
S 9
S 10
D2
D3
D4
D5
S1
The sequence number of the DeviceNet communication module
S2
DeviceNet node address (MAC ID)
S3
Service Code
S4
Class ID
S5
Instance ID
S6
Attribute ID
S7
Written-data size
S8
The start device where written data are stored
S9
Communication timeout time
S10
Times of re-transmission
D1
Completion flag
D2
Error flag
D3
Error code
D4
Read-data size
D5
The start device where read data are stored
Explanation:
S1 is the sequence number of the module on the right of the PLC. The number of the first module is 1; the
second module is 2 and so on. Any type of module need be numbered within the range of 1~32. If the number
is out of the range, the instruction will take the minimum (1) or maximum (32) for operation.
S2 is a DeviceNet node address within the range of 0~63. Users can specify the node address of a slave
which the master is to read and write. It also can be the node address of the master, which means to read and
write the data in the master.