61
5–11–2 High-speed Timer – TIMH(15)
N: TC number
# (00 though 47 )
Ladder Symbol
Definer Values
TIMH(15)
N
SV
SV: Set value (word, BCD)
IR, HR, #
Operand Data Areas
SV may be between 00.00 and 99.99 seconds. The decimal point of SV is
not input.
Each TC number can be used as the definer in only one timer or counter in-
struction.
A scan time of greater than 10 ms may affect the accuracy of the timer.
TIMH(15) operates the same as TIM except that TIMH measures in units of
0.01 second and accuracy is +0.00/–0.01 second.
Refer to
5–11–1 Timer – TIM
for operational details and examples. All as-
pects except for the above considerations are the same.
Timers in interlocked program sections are reset when the execution condi-
tion for IL(02) is OFF. Power interruptions also reset timers. If a timer that is
not reset under these conditions is desired, SR area clock pulse bits can be
details.
Program execution will continue even if a non-BCD SV is used, but timing will
not be accurate.
ER: SV is not in BCD.
5–11–3 Analog Timer Unit
The Analog Timer Unit uses two I/O words to provide four timers (T
0
to T
3
).
Each of the four timers may be set to a specific timer value (SV) within one of
four ranges. The SV for each timer may be set using either a variable resistor
on the Analog Timer Unit or from an external variable resistor.
Each timer is allocated five bits within the IR words allocated to the Analog
Timer Units. The function of these is shown below. The words shown in the
table are as seen from the CPU, i.e., the input word goes from the Analog
Timer Unit to the CPU, the output word, from the CPU to the Analog Timer
Unit. The CPU receives the Time Expired Flag from the Unit and sends the
Start Control Bit, Pause Control Bit and Range Bits to the Unit.
Limitations
Description
Precautions
Flags
Timer and Counter Instructions Section 5–11
counted to produce timers using CNT. Refer to
5–11–4 Counter – CNT
for
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