Nematron Pointe Controller - Manual (Page 358)

Appendix C: Ladder Diagram Block Reference Pointe Controller User Guide
356
Configuration Reference
The parameters of this block are described in the following table:
Param Name Config Var Type Description
EN Enable no - The state of the rung (off/on)
received from the left.
ENO Enable
Out no - The state of the rung (off/on)
passed to the right.
CD Count
Down req %IX
%QX
%MX
T_DONE
The enable bit which must be set in
order for the counter to
decrement.
L Preset req %IX
%QX
%MX
T_DONE
The preset bit; if this bit is set, then
the counter is set to the preset
value.
PV Preset
Value req %IUD
%QUD
%MUD
Numeric
The preset value of the counter.
QD Output
Down req %QX
%MX
The “done” bit which is set when
the counter reaches 0.
CV Counter
Value req %QUD
%MUD
The current value of the counter.
C.2.6 Counter, Up/Down (CTUD)
When used in a Ladder Diagram, the CTUD block either increments or decrements
a counter by 1, depending on which enable bit is set. It also sets “done bit when
the counter reaches either a preset value or 0.
Select the tool (from the Timers and Counters Blocks toolbar) and click on a
ladder rung to insert the following block: