Rockwell Automation 284D ArmorStart - Safety Version - User Manual - Manual (Page 314)

I-4 Step Logic, Basic Logic and Timer/Counter Functions
Timer Function Digital inputs and outputs control the timer function and are
configured with Parameters 151…154 (Digital Inx Sel) set to 18
Timer Start and 20 Reset Timer.
Digital outputs (relay and opto type) define a preset level and indicate
when the level is reached. Level Parameters 156 (Relay Out Level),
159 (Opto Out1 Level), and 162 (Opto Out2 Level) are used to set the
desired time in seconds.
Parameters 155 (Relay Out Sel), 158 (Opto Out1 Sel), and 161 (Opto
Out2 Sel) are set to option 16 Timer Out and cause the output to
change state when the preset level is reached.
Counter Function Digital inputs and outputs control the counter function and are
configured with Parameters 151…154 (Digital Inx Sel) set to 19
Counter In and 21 Reset Counter.
Digital outputs (relay and opto type) define a preset level and indicate
when the level is reached. Level Parameters 156 (Relay Out Level),
159 (Opto Out1 Level), and 162 (Opto Out2 Level) are used to set the
desired count value.
Parameters 155 (Relay Out Sel), 158 (Opto Out1 Sel), and 161 (Opto
Out2 Sel) are set to 17 Counter Out which causes the output to
change state when the level is reached.
Example
• A photo eye is used to count packages on a conveyor line.
• An accumulator holds the packages until five are collected.
• A diverter arm redirects the group of five packages to a bundling
area.
• The diverter arm returns to its original position and triggers a
limit switch that resets the counter.
• Parameters are set to the following options:
• 151 (Digital In1 Sel) set to 19 to select Counter In
• 152 (Digital In2 Sel) set to 21 to select Reset Counter
• 155 (Relay Out Sel) set to 17 to select Counter Out
• 156 (Relay Out Level) set to 5.0 (counts)