Basic SFC Functions
4-13. 【OUT】,【RST】for the counters
Mnemonic Function Format and Devices
OUT
(OUT)
Final logic operation type
coil drive
K or D
RST
(ReSeT)
Reset a bit device
permanently OFF
Counter used for ut retentive.
Even when power is cut, hold the current
value and output contact’s action status
and reset status.
power c
Mnemonic
and
Function
Programming
C0 carries on increase count for the
OFF→ON of X011. When reach the
value K10, output contact C0
activates. Afterwards, even X011 turns
m OFF to ON, counter’s current
value will not change, output contact
keep on activating.
To clear this, let X010 be the activate
status and reset the output contact. It’s
necessary to assign constant K or
indirect data register’s ID behind OUT
instruction.
set
fro
Programming
of high speed
counter
z In the preceding example, when M0 is ON, carry on positive count with OFF→ON
of X0.
z Counter’s current value increase, when reach the set value (K or D), the output
contact is reset.
z When M1 is ON, counter’s C600 output contact is reset, counter’s current value turns
to be 0.
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