B&B Electronics I3A12X_20B05-SOHF - Manual - Manual (Page 13)

Timers and Counters
Timers and counters require two consecutive registers to store their data in memory.
The first register contains the current value and the second contains the status bits of
the counter or timer.
Register 1
= Accumulated value
Register 2 .15 = Function Enabled
Register 2 .16 = Function Completed i.e. timing elapsed, preset value met.
Timer Set up
There are two types of timer, on delay and off delay. The On delay timers can be
retentive.
On Delay
Delays before the output goes high. On being enabled the timer starts. When elapsed
time reaches the Preset the output will energise. The output will remain energised
until the input to the timer has been removed.
Consecutive
registers %R01
and R02
Either 10ms or
100ms
Set point can
be a register or
a constant
Timer options
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