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2. CC-Link COMMUNICATION 45
2.1 System Configuration............................................................. 46
2.1.1 System configuration example.................................................................... 46
2.1.2 Function block diagram............................................................................... 47
2.2 CC-Link Parameters................................................................ 49
2.2.1 CC-Link Extended Setting (Pr. 544)............................................................ 49
2.3 CC-Link I/O Specifications ..................................................... 50
2.4 Buffer Memory......................................................................... 57
2.4.1 Remote output signals
(Master module to inverter(FR-A7NC))....................................................... 57
2.4.2 Remote input signals Pr.544=100
(Inverter(FR-A7NC) to master module)....................................................... 58
2.4.3 Remote registers Pr.544=100
(Master module to inverter(FR-A7NC))....................................................... 59
2.4.4 Remote registers Pr.544=100
(Inverter(FR-A7NC) to master module)...................................................... 60
3. SEQUENCE PROGRAMMING 61
3.1 Overview .................................................................................. 62
3.1.1 Outline of Operation Processings ............................................................... 62
3.2 RUN and STOP Operation Processings................................ 64
3.3 Program Makeup ..................................................................... 64
3.4 Programming Languages.......................................................65
3.4.1 Relay symbolic language (Ladder mode) ................................................... 65
3.4.2 Logic symbolic language (List mode).......................................................... 67
3.5 Operation Processing Method of PLC Function ..................68
3.6 I/O Processing Method ........................................................... 69
3.6.1 What is refresh system? ............................................................................. 69
3.6.2 Response delay in refresh system.............................................................. 70
3.7 Scan Time ................................................................................ 71
3.8 Numerical Values Usable in Sequence Program .................72
3.8.1 BIN (Binary Code)....................................................................................... 73
3.8.2 HEX (HEX Decimal).................................................................................... 74
3.9 Description of devices............................................................ 75
3.9.1 Device List .................................................................................................. 75
3.9.2 Inputs, Outputs X, Y.................................................................................... 76
3.9.3 Internal Relays M ........................................................................................ 79
3.9.4 Timers T...................................................................................................... 80