ClassicLadder - realtime software plc based on ladder logic

       See http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ClassicLadder_Ver_7.124 for the latest.

       This  component  consist  of  a  realtime  part and a non-realtime part.  The non-realtime part loads the
       programmable ladder description, while the realtime part  provides  the  pins.   The  file  name  of  the
       configuration  can  be  changed  using an argument to the non-realtime part.  By default the non-realtime
       part provides a graphical visualisation of the loaded ladder, which can be disabled using  the  '--nogui'
       option to the non-realtime part.

       These  pins  and  parameters  are  created by the realtime classicladder_rt module.  Each period (minimum
       1000000 ns), ClassicLadder reads the inputs, evaluates the ladder logic defined  in  the  GUI,  and  then
       writes the outputs.

classicladder.0.refresh FP
              The rung update rate. Add this to the servo thread.  You can added it to a faster thread  but  it.
              Will update no faster than once every 1 millisecond (1000000 ns).

       ClassicLadder - realtime software plc based on ladder logic

classicladder.0.refresh.time RO s32
              Tells you how long the last refresh took.

       classicladder.0.refresh.tmax RW s32
              Tells you how long the longest refresh took.

       classicladder.0.ladder-state RO s32
              Tells you if the program is running or not

classicladder.0.in-NN IN bit
              These bit signal pins map to %INN variables in ClassicLadder.

       classicladder.0.out-NN OUT bit
              These bit signal pins map to %QNN variables in ClassicLadder.  Output from ClassicLadder.

       classicladder.0.s32in-NN IN s32
              Integer input from ClassicLadder.  These s32 signal pins map to %IWNN variables in ClassicLadder.

       classicladder.0.s32out-NN OUT s32
              Integer output from ClassicLadder.  These s32 signal pins map to %QWNN variables in ClassicLadder.

       classicladder.0.floatin-NN IN float
              Integer   input   from  ClassicLadder.   These  float  signal  pins  map  to  %IFNN  variables  in
              ClassicLadder.  These are truncated to S32 values internally. eg 7.5 will be 7.

       classicladder.0.floatout-NN OUT float
              Float output from ClassicLadder.  These float signal pins map to %QFNN variables in ClassicLadder.

       classicladder.0.hide_guiINbit
              This bit pin hides the ClassicLadder window, while still having the non-realtime code run. This is
              usually desirable when modbus is used, as modbus requires the non-realtime code to run.

ClassicLadder  chapters  in the LinuxCNC documentation for a full description of the ClassicLadder syntax
       and examples.

       http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ClassicLadder_Ver_7.124

LinuxCNC Documentation                             2008-11-23                                   CLASSICLADDER(9)

loadrtclassicladder_rt[numRungs=N][numBits=N][numWords=N][numTimers=N][numMonostables=N][numCounters=N][numPhysInputs=N][numPhysOutputs=N][numArithmExpr=N][numSections=N][numSymbols=N][numS32in=N][numS32out=N][numFloatIn=N][numFloatOut=N]loadusrclassicladder<filename>[--nogui]