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C 4)
Timers
The PLC in the TNC 150 has 16 timers
at its disposal.
The start of each of the 16 timers
is controlled
by a
special marker
with
the identification
T. The timers
time out from
the times programmed
in the corresponding
machine
parameters.
The unit of time is 20 ms (max. 65535 units programmable).
An additional
special marker
with
the identification
T enables "Timer
running"
to be interrogated.
Function
Marker
identification
Remarks
Timer start
Timer running
TO toT31
T48
to T79
Through
the assignment
of a logic "l",
the
corresponding
timer will
be set to the preset value
in the associated
machine
parameter
and started.
The
assignment
of the logic "1"
must only exist for one
PLC cycle, otherwise
the setting will
be repeated
on
each subsequent
program
cycle.
The marker
T48 to T63 corresponding
to the timer TO
to T'I 5 is at logic "I",
when a Timer has been set. The
status "Timer
running"
can be interrogated
via T48 to
T63. On the timing out of the timer,
the marker
"Timer
running"
is set again to logic "0".
Note:
For the duration
of the first program
cycle after
the sl?tting of the timer,
the corresponding
marker
T48
to T63 remains
at logic "0".
lmpuls diagram
; (e.g. machine
parameter
110)
Relationship
of the markers:
Timer start
TO
Tl
T2
T3
T4
T5
T6
T7
T8
T9
TIO
Tll
T12 T13 T14 Ti5
Timer
running
T48 T49 T50 T51 T52 T53 T54 T55 T56 T57 T58 T59 T60 T61 T62 T63
Machine
110 111
112
113
114 115
116
117 118
119
120 121
122
123 124
125
parameter
Timer start
T16 T17 T18 T19 T20 T21 T22 T23 T24 T25 T26 T27 T28 T29 T30 T31
Timer
running
T64 T65 T66 T67 T68 T69 T70 T71 T72 T73 T74 T75 T76 T77 T78 T79
Machine
193 194
195
196
197 198
199 200
201~202
203
204
205
206 207
208
parameter
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