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4.4 Allocating Slave Device Data to the Input/Output Data Area..............................75
4.5 The Semaphore Area.........................................................................................76
4.6 Requests to the DN211........................................................................................79
4.6.1 The DN211 Operation Modes...................................................................80
4.6.2 Reset Request .........................................................................................81
4.6.3 Parameter Setting Request (local node) ..................................................82
4.6.4 Parameter Setting Request (slave device)...............................................85
4.6.5 Operation Mode Control Request.............................................................88
4.6.6 RAS Information Read Request................................................................89
4.6.7 Time Setting Request...............................................................................90
4.7 Completion Status..............................................................................................91
5. Example of DN211 Applications.........................................................................92
5.1 The DN211 Operation Order...............................................................................92
5.2 Module Setting Procedure .................................................................................93
5.2.1 Accessing the DN211 in Module Setting...................................................94
5.2.2 Configuration of a Module Setting Sample Program.................................96
5.2.3 Reset Request .........................................................................................97
5.2.4 Parameter Setting Request (local node) ..................................................99
5.2.5 Parameter Setting Request (slave device).............................................100
5.2.6 Operation Mode Control Request...........................................................106
5.2.7 RAS Information Read............................................................................111
5.2.8 Time Setting Request.............................................................................114
5.3 Slave Data Input/Output...................................................................................116
5.3.1 Slave Device Check ...............................................................................116
5.3.2 Asynchronous Mode Data Input/Output..................................................117
5.3.3 Synchronous Mode Data Input/Output ...................................................122
6. RAS Information (except RAS area on communication memory) .......... 129
6.1 Module Status / Network Status LED (MS/NS)...................................................130
6.2 Indications of the 7
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Segment LED....................................................................131
6.3 RAS Information Reading Data ........................................................................133
6.3.1 The RAS Counter...................................................................................133
6.3.2 Event History..........................................................................................136
6.3.3 Execution Node Information....................................................................139
7. Troubleshooting.................................................................................................. 141
7.1 When Starting up the Module ..........................................................................141
7.2 Reset Request (scan list clear)..........................................................................142
7.3 When the Module Doesn't Become Run Mode .................................................143
7.4 Data Communication with Slave Devices.........................................................146