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Timer and Counter Instructions Section 3-5
If the timer input is turned OFF before the SV is reached, the timer will stop
timing but the PV will be maintained. The timer will resume from its previous
PV when the timer input is turned ON again.
3-5-5 LONG TIMER: TIML(542)/TIMLX(553)
Purpose TIML(542)/TIMLX(553) operates a decrementing timer with units of 0.1 s that
can time up to 115 days for TIML(542) and 4,971 days for TIMLX(543). The
timer accuracy is 0 to
−0.01 s.
Ladder Symbol BCD
Binary
Variations
CIO 0.00
T0001
CIO 0.01
T0001
0.00
0.01
#100
Timer input
Timer PV
Timer Completion
Flag
Reset input
PV maintained.
Timing resumes.
TIML(542)
D1
D2
S
D1: Completion Flag
D2: PV word
S: SV word
TIMLX(543)
D1
D2
S
D1: Completion Flag
D2: PV word
S: SV word
Variations Executed Each Cycle for ON Condition TIML(542)/
TIMLX(553)
Executed Once for Upward Differentiation Not supported.
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification Not supported.
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