Mitsubishi Electric FR - F700 Programming Manual page 4

3.6 I/O processing method ...........................................................75
3.6.1 What is refresh system?.............................................................................. 75
3.6.2 Response delay in refresh system .............................................................. 76
3.7 Scan time .................................................................................77
3.8 Numerical values usable in sequence program ...................78
3.8.1 BIN (Binary Code) ....................................................................................... 79
3.8.2 HEX (HEX Decimal) .................................................................................... 81
3.9 Description of devices ............................................................82
3.9.1 Device list .................................................................................................... 82
3.9.2 Inputs, outputs X, Y ..................................................................................... 83
3.9.3 Internal relays M.......................................................................................... 86
3.9.4 Timers T ...................................................................................................... 87
3.9.5 100ms, 10ms and 100ms retentive timers .................................................. 87
3.9.6 Timer processing method and accuracy ..................................................... 88
3.10 Counters C ...............................................................................90
3.10.1 Count processing in refresh system ............................................................ 91
3.10.2 Maximum counting speed of counter .......................................................... 92
3.11 Data registers D .......................................................................93
3.12 Special relays, special registers ............................................94
3.13 Function list .............................................................................96
3.14 How to RUN/STOP the built-in PLC function from outside (re-
mote RUN/STOP) .....................................................................97
3.15 Watchdog timer (operation clog up monitor timer)..............99
3.16 Self-diagnostic function .......................................................100
3.16.1 Error-time operation mode ........................................................................ 101
3.17 Keyword registration ............................................................102
3.18 Setting of output (Y) status at switching from STOP status to
RUN status .............................................................................103
3.19 Instruction format..................................................................104
3.20 Bit device processing method .............................................106
3.20.1 1-bit processing ......................................................................................... 106
3.20.2 Digit designation processing ..................................................................... 106
3.21 Handling of numerical value ................................................110
3.22 Operation error ......................................................................111
3.23 Instructions list......................................................................112
3.23.1 How to use the instruction list.................................................................... 112
3.23.2 Sequence instruction................................................................................. 114
3.23.3 Basic instructions ...................................................................................... 116
3.23.4 Application instructions.............................................................................. 120
III