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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