Rockwell Automation RECOMM-CNET ControlNet Communications Module User Manual
Page 44

5-14
ControlNet Communications Module
Step 9.
Enter the input and output size for the node on the
network. The number of words selected depends on the
I/O to be communicated with the node. In this example,
the Node 2 SP600 is set for all I/O enabled which equates
to 10 words of I/O (table 5.1).
Important: The size of the Reference (Ref/Fdbk Size (7)) and
Datalinks (Datalink Size (8)) will affect the size you
configure for the network I/O. For example, 32-bit
Datalinks requires twice as many words as 16-bit
Datalinks. Depending on your application, the
configured I/O size may vary.
Figure 5.19 – Integer Files for ControlNet Communications Screen
Table 5.1 – Input/Output Table
Words
Input to PLC-5C
Output to PLC-5C
0-1
Logic Command /
Reference
Logic Status /
Feedback
2-3
Datalinks A1 & A2 Out
Datalinks A1 & A2 In
4-5
Datalinks B1 & B2 Out
Datalinks B1 & B2 In
6-7
Datalinks C1 & C2 Out
Datalinks C1 & C2 In
8-9
Datalinks D1 & D2 Out
Datalinks D1 & D2 In
SP600
SP600
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