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R-IN32 Series CC-Link Remote device station
11.2.3
Extended Cyclic Header Information
In Version 2, header information provides for the handshaking between the master and slave stations for the divided
data. The header information uses the first 16 bits of the data area in the transmission frame. This corresponds to the
section in the frame used as RY00-0F and RX00-0F in Version 1. This frame section is now referred to as header
information in Version 2, containing "ST3" and "SQ", each of which consists of 8 bits. ST3 is reserved for future
expansion and is not used in Version 2.
Master station
Polling &
Transmission
refresh
Reception
S
S
A
A
T
T
RY Area
1
2
1
2
Station 1
Cyclic data
S
RY
section
T
(Ver.1)
3
Header
information
Figure 11.2 Extended Cyclic Header Information
R18UZ0056EJ0102
Dec. 28, 2018
Cycle adjustment
....
CR
RWw Area
C
Station 2
Station 3
Station 4
S
S
S
RY
T
RY
RY
......
Q
Q
3
Cycle adjustment
....
Station 64
Station 1
RY
RWw
......
11. Overview of CC-Link Ver. 2
....
Response
S
S
A
A
T
T
RX Area
RWr Area
1
2
1
2
S
S
T
RX
RWr
Q
3
Header
information
Page 51 of 83
CR
C
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