III
CONTENTS
3.9.5 100ms, 10ms and 100ms retentive timers .................................................. 80
3.9.6 Timer processing method and accuracy ..................................................... 81
3.10 Counters C ...............................................................................83
3.10.1 Count processing in refresh system............................................................ 84
3.10.2 Maximum counting speed of counter .......................................................... 85
3.11 Data Registers D......................................................................86
3.12 Special Relays, Special Registers .........................................87
3.13 Function List ............................................................................89
3.14 How to RUN/STOP the Built-in PLC Function from Outside (Re-
mote RUN/STOP) .....................................................................90
3.15 Watchdog Timer (Operation clog up monitor timer)............92
3.16 Self-diagnostic Function ........................................................93
3.16.1 Error-time operation mode .......................................................................... 94
3.17 Keyword Registration .............................................................95
3.18 Setting of Output (Y) Status at Switching from STOP Status to
RUN Status...............................................................................96
3.19 Instruction Format...................................................................97
3.20 Bit Device Processing Method...............................................99
3.20.1 1-bit processing...........................................................................................99
3.20.2 Digit designation processing .......................................................................99
3.21 Handling of Numerical Value................................................101
3.22 Operation Error......................................................................102
3.23 Instructions List ....................................................................103
3.23.1 How to use the instruction list....................................................................103
3.23.2 Sequence instruction.................................................................................105
3.23.3 Basic instructions ...................................................................................... 107
3.23.4 Application instructions..............................................................................109
3.24 Description of the Instructions ............................................110
3.25 Sequence Instructions..........................................................111
3.25.1 Contact Instructions :
Operation start, series connection, parallel connection ... LD, LDI, AND, ANI,
OR, ORI..................................................................................................... 111
3.25.2 Contact Instructions : Ladder block series connection, parallel connection ...
ANB, ORB .................................................................................................113
3.25.3 Connection Instructions :
Ladder block series connection, parallel connection ... ANB, ORB........... 117
3.25.4 Connection Instructions :
Operation result, push, read, pop ... MPS, MRD, MPP............................. 120
3.25.5 Output Instructions : Bit device, timer, counter ... OUT............................. 123