Omron SYSMAC NX-CIF Series User Manual page 115

CPU Unit or communications master
Step Process
1 Outputting • The communications master outputs
send data the following output notification data to
that is not pass the send data that is not the final
the final send data to the CIF Unit.
send data
Output SID
Input SID
Response
Output Data
Type
Output Sub Info
Output Data
Length
Output Data
2 Output The communications master receives
response the input notification data given on the
for send right.
data that is
not the final
send data
3 Sending ---
send data
that is not
the final
send data
4 Outputting The communications master outputs the
the final following output notification data to pass
send data the final send data to the CIF Unit.
Output SID
Input SID
Response
Output Data
Type
Output Sub Info
Output Data
Length
Output Data
NX-series Communications Interface Units User's Manual (W540)
processing
-
-
There is send
1000 hex
data that is not
the final send
- data.
-
Send
data that
is not the
final send
data
-
-
2000 hex Final send
data
-
-
Final
send data
7 Serial Communications
Communi-
cations
CIF Unit processing
*1
direction
The CIF Unit receives the output notifica-
tion data given on the left.

• The CIF Unit inputs the following input
notification data.
• The CIF Unit changes the Send Data
Exist in the Port Status to TRUE (there
is data in the send buffer).

Port Status
Input SID
Output SID
Response
Input Data Type
Input Sub Info
Input Data Length
Input Data
The CIF Unit sends send data that is not
the final send data to the serial line.
The CIF Unit receives the output notifica-
tion data given on the left.

There is data in
0011 hex
the send buffer.
-
-
-
-
-
-
*2
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