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1 CC-Link SYSTEM
(3) Local station communication
The local station is a station having a programmable controller CPU and the
ability to communicate with the master and other local stations.
Communication between a master station and a local station uses two types of
transmission methods: cyclic transmission and transient transmission (refer to
Section 8.1.3).
(a) Cyclic transmission
Data communication between programmable controller CPUs can be
performed in N:N mode using bit data (remote input RX and remote output
RY) and word data (remote registers RWw and RWr).
Programmable
controller CPU
X
Y
W
W
Master station
X
Y
W
W
Remote
output
(RY)
Remote
input
(RX)
Remote
register
(RWw)
Remote
register
(RWr)
Remote
input
(RX)
Remote
output
(RY)
Remote
register
(RWw)
Remote
register
(RWr)
Automatic refresh
Automatic refresh
Automatic refresh
Automatic refresh
Link scan
Link scan
Link scan
Link scan
Automatic refresh
Automatic refresh
Automatic refresh
Automatic refresh
Programmable
controller CPU
Local station
(b) Transient transmission
Read (G(P).RIRD) or write (G(P).RIWT) operation of the local station buffer
memory and CPU device can be performed at any timing.
Master station
Programmable
controller CPU
Local station
Transient transmission
Programmable
controller CPU
Transient transmission
Transient transmission
Transient transmission
Transient
transmission
area
Transient
transmission
area
Buffer
memory
W
G(P).RIWT
G(P).RIRD
Summary of Contents for L26CPU-BT
Page 1: ......
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Page 32: ...3 5 3 5 3 SPECIFICATIONS ...
Page 51: ...4 2 4 2 4 PROCEDURE BEFORE OPERATION 4 ...
Page 61: ...6 4 6 4 6 INSTALLATION AND CONNECTION ...
Page 63: ...6 6 6 6 6 INSTALLATION AND CONNECTION 8 The connection method is shown below ...
Page 70: ...6 13 6 13 6 INSTALLATION AND CONNECTION ...
Page 72: ...6 15 6 15 6 INSTALLATION AND CONNECTION ...
Page 139: ...8 33 8 33 8 FUNCTIONS ...
Page 151: ...8 45 8 45 8 FUNCTIONS ...
Page 246: ...11 9 11 9 11 EXAMPLE OF COMMUNICATION BETWEEN THE MASTER STATION AND REMOTE DEVICE STATIONS ...
Page 311: ...13 2 13 2 13 COMMUNICATION BETWEEN THE MASTER STATION AND INTELLIGENT DEVICE STATIONS MEMO 13 ...
Page 321: ...14 10 14 10 14 EXAMPLE OF COMMUNICATION WHEN MOUNTING MODULES ON THE HEAD MODULE ...
Page 326: ...15 5 15 5 15 TROUBLESHOOTING To the next page ...
Page 327: ...15 6 15 6 15 TROUBLESHOOTING To the next page ...
Page 328: ...15 7 15 7 15 TROUBLESHOOTING ...
Page 329: ...15 8 15 8 15 TROUBLESHOOTING 2 Troubleshooting by status logging ...
Page 436: ...App 72 App 72 APPENDIXES 7 Operating procedure of the transmission speed test ...
Page 439: ...App 75 App 75 APPENDIXES MEMO ...
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