9
Q15: WHY THE OUTPUT POINT ACTION ERRORS AFTER PLC RUNNING FOR A WHILE？ ................... 425
Q16: WHY EXPANSION MODULE DOES NOT WORK WHILE POWER INDICATOR IS ON? .......................425
Q17: WHY THE SIGNAL INPUT BUT CANNOT SEE THE HIGH SPEED COUNTER WORKING？ ................425
Q18: C LANGUAGE ADVANTAGES COMPARED TO LADDER CHART?....................................................426
Q19: WHAT’S PLC OUTPUT TERMINAL A, B？ ..................................................................................426
Q20: WHAT’S THE DIFFERENCE OF SEQUENCE FUNCTION BLOCK TRIGGER CONDITION: RISING EDGE
TRIGGERED AND NORMALLY CLOSED CONDUCTION?.........................................................................426
Q21: WHAT ARE THE DOWNLOAD MODES OF XD/XL SERIES PLC AND WHAT ARE THEIR
CHARACTERISTICS?............................................................................................................................426
Q22: WHAT KINDS OF CONFIDENTIALITY METHODS DO XD/XL SERIES PLCS HAVE?.......................427
Q23: WHAT’S THE ADVANTAGE THAT XD SERIES PLC REPLACES DVP DOWNLOAD CABLE WITH
BLUETOOTH?......................................................................................................................................427
Q24: PLC I/O TERMINALEXCHANGING ............................................................................................. 428
Q25: WHAT’S THE FUNCTION OF XD/XL SERIES PLC INDIRECT ADDRESSING?................................429
Q26: HOW DOES XD/XL SERIES PLC CONNECT TO THE NETWORK?................................................ 429
Q27: HOW TO ADD SOFT ELEMENT ANDLINE NOTE IN XDPPRO SOFTWARE?.....................................429
Q28: DO NOT HAVE CLOCK FUNCTION?WHY IS THE CLOCK INACCURATE?.......................................431
APPENDIX SPECIAL SOFT COMPONENTS ........................................................................ 432
APPENDIX 1 SPECIAL AUXILIARY RELAY ...........................................................................................432
APPENDIX 2 SPECIAL DATA REGISTER ...............................................................................................438
APPENDIX 3 SPECIAL FLASH REGISTER .............................................................................................447
APPENDIX 4 PLC RESOURCE CONFLICT TABLE ..................................................................................451
APPENDIX 5 PLC FUNCTION CONFIGURATION LIST ........................................................................... 452
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