Mitsubishi QD51, User Manual

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A - 7 A - 7
3.5.5 Special register (ED9000 to ED9127) ............................................................................................. 3-31
3.5.6 Expansion relay (EM0 to EM1023).................................................................................................. 3-35
3.5.7 Special relay (EM9000 to EM9127)................................................................................................. 3-38
3.6 Receive Buffer......................................................................................................................................... 3-41
3.7 List of GX Developer Setting Items for the QD51 (-R24)....................................................................... 3-42
3.8 List of Input/Output Signals From/To the Programmable controller CPU............................................. 3-43
3.8.1 Input (X) detailed explanation .......................................................................................................... 3-45
3.8.2 Output (Y) detailed explanation ....................................................................................................... 3-49
3.9 Relationship between the QD51 (-R24) Start Condition and the Flash ROM Execution
Program Area.......................................................................................................................................... 3-53
3.10 QD51 (-R24) Operation when the Power is Turned On ...................................................................... 3-54
3.10.1 In the case of the programming mode........................................................................................... 3-54
3.10.2 In the case of the multitask debug mode ...................................................................................... 3-55
3.10.3 In the case of the run mode ........................................................................................................... 3-56
3.11 Running a Task (a created program) ................................................................................................... 3-57
3.11.1 Conditions for permitting running of a task and start conditions................................................... 3-57
3.11.2 Starting by turning the power on or by reset (start condition: START) ........................................ 3-58
3.11.3 Starting by an interrupt from the programmable controller CPU (Start Condition: IT)................. 3-60
3.11.4 Starting by a start request from another task (Start condition: BOOT, ON)................................. 3-61
3.12 Running a BASIC Program by Multitask Processing........................................................................... 3-63
3.12.1 Multitask processing....................................................................................................................... 3-63
3.13 BASIC Program Priority Order (Priority)............................................................................................... 3-64
3.13.1 Synchronizing execution between BASIC programs (Event control)........................................... 3-65
3.13.2 Sharing equipment (Resources) by multitasking .......................................................................... 3-66
4 ABOUT QD51 (-R24) FUNCTIONS 4- 1 to 4-24
4.1 List of Functions ...................................................................................................................................... 4- 1
4.2 Communications with a Console / Terminal........................................................................................... 4- 2
4.2.1 Communications with a console ...................................................................................................... 4- 3
4.2.2 Communications with a terminal...................................................................................................... 4- 6
4.3 Printing by a Printer................................................................................................................................. 4-10
4.3.1 Printing from a printer connected to an interface that is not set in the console ............................. 4-11
4.3.2 Printing from a printer connected to the console ............................................................................ 4-13
4.4 Communications with the External Device............................................................................................. 4-14
4.4.1 If data are being sent ....................................................................................................................... 4-14
4.4.2 If data are received........................................................................................................................... 4-15
4.5 Communications with the Programmable controller CPU ..................................................................... 4-16
4.5.1 ON/OFF data communications by general output (X/Y) ................................................................. 4-17
4.5.2 Reading and writing data from/to buffer memory............................................................................ 4-18
4.5.3 Reading and writing data from/to the programmable controller CPU ............................................ 4-19
4.5.4 Reading and writing data from/to the programmable controller CPU's expansion file register..... 4-20
4.6 Reading and Writing Data from/to the Buffer Memory of Another Intelligent Function Module/
Special Function Module ........................................................................................................................ 4-21
4.7 Reading and Writing Clock Data ............................................................................................................ 4-22
4.8 Data Communications Between Tasks .................................................................................................. 4-23
4.8.1 ON/OFF data communications by expansion relay (EM) ............................................................... 4-23
4.8.2 Data communications by expansion register (ED).......................................................................... 4-24