1，forced
Forced steps:
a, PLC – Display Force Values;
b, the CPU right, Insert New Object – Variable Table, opened a variable table in the variable table using the menu Variable – Display Force Values.
forced to use: Open the forced variable window, enter the forced address,
In Force Value set in the actual situation 1 or 0, then we must start forced (right – Force)
2，how to use a query,I,Q, M, etc.
Open any of the OB block, Options – Reference Data – Display, there is a selection prompt, Select View to Be Opened ——— Assignment (Input, Output, Bit Memory, Timers and Counters).
3, Monitor
Click the Monitor “glasses” icon
Monitoring a variable: Open the variable table VAT_1 – Input Monitoring address – click the taskbar ” Establish a PLC connection icon “
PLC ONE 