Omron SYSMAC CP CP1E-N@@D@-@ Bedienungsanleitung PDF herunterladen (Seite 106)

2 Instructions

2-70

CP1E CPU Unit Instructions Reference Manual(W483)

Function

Hint

A TIMH(015)/TIMHX(551) instruction’s PV and Completion Flag can be refreshed in the following ways

depending on the timer number that is used.

Precautions

• Timer numbers are shared with other timer instructions. If two timers share the same timer number,

but are not used simultaneously, a duplication error will be generated when the program is checked,

but the timers will operate normally. Timers which share the same timer number will not operate prop-

erly if they are used simultaneously.

• Timers will not operate properly when the CPU Unit cycle time exceeds 4s. Use timer instructions

when the cycle time is no longer than 4s.

• Timers will be reset or paused in the following cases. (When a timer is reset, its PV is reset to the SV

and its Completion Flag is turned OFF.)

• When the timer input is OFF, the timer specified

by N is reset, i.e., the timer’s PV is reset to the

SV and its Completion Flag is turned OFF.

• When the timer input goes from OFF to ON,

TIMH(015)/TIMHX(551) starts decrementing the

PV. The PV will continue timing down as long as

the timer input remains ON and the timer’s Com-

pletion Flag will be turned ON when the PV

reaches 0000.

• The status of the timer’s PV and Completion Flag

will be maintained after the timer times out. To

restart the timer, the timer input must be turned

OFF and then ON again or the timer’s PV must

be changed to a non-zero value (by MOV(021),

for example).

• The setting range for the set value (SV) is 0 to

99.99 s for TIMH(015) and 0 to 655.35 s for

TIMHX(551).

• The timer accuracy is 0 to 0.01 s.

Refresh timing Description

Execution of TIMH(015)/TIMHX(551) • The PV is updated every time that TIMH(015)/TIMHX(551) is executed.

• The Completion Flag is turned ON if the PV is 0.

The Completion Flag is turned OFF if the PV is not 0.

OFF

Timer input

Timer PV

Completion

Flag

OFF

Timer input

Timer PV

Completion

Flag

The following timing chart shows the

behavior of the timer’s PV and Completion

Flag when the timer input is turned OFF

before the timer times out.

1 2 ... 101 102 103 104 105 106 107 108 109 110 111 ... 466 467

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