//INTEGRAS/ELS/PAGINATION/ELSEVIER UK/PLC/3B2/FINALS-7-6-04/0750656794-CH007.3D – 84 – [71–90/20] 19.6.2004
9:08PM
(b) From the above waveforms, it can be seen that each time Input X0 operates,
the Instruction PLS M0 will be executed and the normally open contact of
M0 will momentarily close, hence causing the Counter C0 to be reset to
zero.
(c) Hence, with the operation of Input X0 and the resetting of Counter C0, the cycle
will repeat itself.
(d) Even though Input X0 remains closed, the pulse circuit will not re-operate until
Input X0 re-opens and closes again.
Monitoring
Carry out the following:
1. Open a new project and give it the name, COUNT1.
2. Enter the ladder diagram.
3. Save the program.
4. Download to the FX2N PLC.
5. Monitor the Ladder Diag