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Topics - bongofury

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Technical support / DM Manipulating
« on: May 14, 2009, 05:42:46 PM »
 ::)  Hi All, we have successful bi-directional comm. with the f2424 via Modbus RTU.  However when I change a value in DM[n] it holds for one scan and then reverts back to the original value.  I see the value change on the LCD and in the monitor mode.  I would like to use DM's as set point placements for PID control.  Wrong application of DM's?

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Technical support / Display PLC current time and date on LCD420
« on: March 17, 2009, 07:36:09 PM »
Very new to TRI.  The ladder portion is easy enough.   The TBasic is new to me.  I can program all 4 lines to say "start", "stop" etc. associated with input or output change of state.  I can't figure out how to display time and date when the plc is in idle.  I feel I am missing something obvious......
Any help would be appreciated,   Dave

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