Yaskawa YASNAC PC NC PLC Programming Manual User Manual

Page 51

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YASNAC PCNC PLC Programming Manual Chapter 6: PLC Instructions

6.3.2 Timer Instructions

The timer instructions are described below.

(1) TIM (Fixed Timer) RR = 1 at time-up

(a) Function

The timer instruction counts the length of time while the ST contact is ON (RR=1), and
turns the TM ON at the preset time.

While the ST contact is OFF (RR = 0), the instruction sets the TM OFF and resets the
timer.

(b) Format

(c) Explanation

Setting range is from 0 to 255 in decimal. However, the setting must be made in
hexadecimal.

If the setting is “255”, the timer does not count up.

The following five types of timers can be used.

Accuracy of timers depends on the basic unit value.

With a timer of #1770, for example, setting of “2” sets the count-up time in the
range of 61 to 120 seconds since the setting unit of this timer is “1 = 1minute”.

To use the timers of #1300 to #1399, the compile of Ver. 3.5 or later necessary.

Address No.

Timer Type

Number of Timers

#1700 to #1709, #1760 to #1769
#1300 to #1309, #1360 to #1369

1 = 8 msec

40

#1710 to #1729, #1790 to #1799
#1310 to #1329, #1390 to #1399

1 = 0.1 sec

60

#1730 to #1749, #1780 to #1789
#1330 to #1349, #1380 to #1389

1 = 50 msec

60

#1750 to #1759, #1350 to #1359

1 = 1 sec

20

#1770 to #1773, #1370 to #1373

1 = 1 min

8

Paradym31 Variable Name

CV PV

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