Omron ZEN Quick Manual page 15

5 I/O Addressing
Area name Symbol
Timer T
Holding #
timer
Clock @
timer
Calendar *
timer
Counter C
X ON delay
n OFF delay
O One-shot
F Flashing pulse
Area Symbol Bit
name addresses
Display D D0 to D7
I/O Bit Addressing
OMRON ELECTRONICS, S.A.
Timers and Counters
Bit N° bits
addresses
T0 to T7 8
#0 to #3 4
@0 to @7 8
*0 to *7 8
C0 to C7 8
Note Timers can have the following functions.
Time elapsed from the moment the input is triggered until the set timer bit
turns to ON mode.
The timer bit turns to ON mode from the moment the input is triggered
until the set time has elapsed on the timer.
The set timer bit turns the selected time to ON mode when the trigger
input switches from OFF to ON mode.
The set timer bit constantly switches from OFF to ON mode while the
trigger input remains in ON mode
Display Bits
N° bits Function
8 Displays predefined messages relating to
timers, counters and their present values or
converted analog values.
The bit input addresses 10 to 15 and the bit output addresses Q0 to Q3 are
always allocated to the CPU unit.
Up to 3 I/O expansion units can be added, allocating these I/O points to the X0
to Xb input bits and Y0 to Yb as output bits, remembering the order of the
connected expansion units.
Function
Can be activated between ON-delay,
OFF-delay, one-shot and flashing
pulse operation.
Maintains the timer value when the
trigger input is in OFF mode. The
timer will continue even if turned to
ON mode again.
Can be put into ON or OFF mode on
a specified day or period.
Can be put into ON or OFF mode on
a specified date.
Reversible counter
ZEN Programmable Logic Module
Ladder Program
N.O. / N. C condition
(see note 1)
Ladder Program
Output
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