183
SECTION 9
CPU Unit Operation
9-1 CPU Unit Operation.................................................................................................................. 184
9-1-1 General Flow ................................................................................................................ 184
9-1-2 Startup (Initial) Process ................................................................................................ 185
9-1-3 Overseeing Processing.................................................................................................. 186
9-1-4 Computing Process....................................................................................................... 186
9-1-5 Details of I/O Refresh and Peripheral Servicing........................................................... 187
9-2 Cycle Time and Time................................................................................................................ 188
9-2-1 Cycle Time ................................................................................................................... 188
9-2-2 Maximum CPU Occupancy and Execution Time......................................................... 194
9-2-3 Differences with CS/CJ Series...................................................................................... 195
9-3 I/O Memory Allocation............................................................................................................. 196
9-3-1 PLC Setup Settings....................................................................................................... 196
9-3-2 Auxiliary Area (Read-only Area).................................................................................. 201
9-3-3 Auxiliary Area (Read/Write Area)................................................................................ 223
9-4 Other Functions......................................................................................................................... 230
9-4-1 Differences in CX-Programmer Operation................................................................... 230
9-4-2 Other Precautions ......................................................................................................... 230
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