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3.5 Buffer Memory.........................................................................................................................................3-19
3.5.1 Buffer memory list ............................................................................................................................3-19
3.5.2 Buffer memory details ......................................................................................................................3-21
4. FUNCTIONS....................................................................................................................................4- 1 to 4-30
4.1 Function List............................................................................................................................................4- 1
4.2 Communication Between the Master Station and Remote I/O Station.................................................4- 3
4.3 Communication Between the Master Station and Remote Device Station...........................................4- 5
4.4 Communication Between the Master Station and Local Station........................................................... 4-10
4.5 Communication in Compound Systems.................................................................................................4-16
4.6 Reserved Station Function .....................................................................................................................4-22
4.7 Error Invalid Station Function .................................................................................................................4-23
4.8 Data Link Status Setting When the Master Station Programmable Controller CPU Has an Error ......4-24
4.9 Setting the Status of Input Data from a Data Link Faulty Station..........................................................4-25
4.10 Module Reset Function from a Sequence Program ............................................................................4-26
4.11 Data Link Stop/Restart..........................................................................................................................4-27
4.12 RAS Function........................................................................................................................................4-28
4.12.1 Automatic return function............................................................................................................... 4-28
4.12.2 Slave station cut-off function..........................................................................................................4-29
4.12.3 Station number overlap checking function ....................................................................................4-30
5. DATA LINK PROCESSING TIME ..................................................................................................5- 1 to 5-24
5.1 Status of Each Station When an Error Has Occurred ...........................................................................5- 1
5.2 Link Scan Time .......................................................................................................................................5- 4
5.3 Transmission Delay Time .......................................................................................................................5- 5
5.3.1 Master station
remote I/O station................................................................................................5- 5
5.3.2 Master station
remote device station ..........................................................................................5- 7
5.3.3 Master station
local station.......................................................................................................... 5-11
5.3.4 Master station
intelligent device station......................................................................................5-15
5.4 Dedicated Instruction Processing Time..................................................................................................5-16
5.4.1 Master station
local station .........................................................................................................5-16
5.4.2 Local station
local station............................................................................................................ 5-20
5.4.3 Master station
intelligent device station .....................................................................................5-22
6. PARAMETER SETTING.................................................................................................................6- 1 to 6-10
6.1 Procedure from Parameter Setting to Data Link Startup.......................................................................6- 1
6.1.1 Relationship between buffer memory, E
2
PROM and internal memory.......................................... 6- 1
6.1.2 Procedure from parameter setting to data link start........................................................................6- 3
6.2 Parameter Settings .................................................................................................................................6- 4
6.3 Setting from a Sequence Program.........................................................................................................6- 5
7. DATA LINK PROCEDURE .............................................................................................................7- 1 to 7-24
7.1 Data Link Procedure ...............................................................................................................................7- 1
7.2 Installation and Setting............................................................................................................................7- 2
7.2.1 Precautions when handling the module ..........................................................................................7- 2
7.2.2 Setting environment .........................................................................................................................7- 3