Tmh: 0.01-s timer – KEYENCE Visual KV Series User Manual

Page 92

Advertising
background image

2.4 Instruction Details

3-68

2

Chapter 2 Instructions

Example

Coding

Description

0500 and 0501 turn ON 0.1-s after 0000 turns ON.

TMH is a subtraction timer. When the current value reaches "#00000", the
contact of the timer No. turns ON.

When input relay 0000 turns OFF, contact T000 turns OFF and the current value
of TMH000 is reset.

Note 1: The TMH number cannot be the same as any other TMS, TMH, TMR, C, or
UDC instructions in the same program.

Note 2: The current value of TMH is not retained but is reset to the preset value if
power failure occurs or if power is turned OFF.

When the number specified by TMH is used as a contact (T000 in the above
example), this contact can be used as many times as desired. It can also be
used as both N.O. and N.C. contacts.

Timer accuracy = 0.01 sec. + (1 scan time) (max.)

Operand

Key operations

TMH: 0.01-s Timer

Sets a 16-bit on-delay timer that
counts down in 0.01-s decrements.

*1 0.01 s x 10 = 0.1 s

LDB

4

O R

9

FUN

#ddddd

T

xxx

T

H

0000

T000

0500

#00010

T

000

T

H

Line No.

Instruction

Operand

0000

LD

0000

0001

TMH

000 #00010*

1

0002

LD

T000

0003

OUT

0500

FUN

LDB

4

O R

9

Operand

(Preset value)

Operand

(TMH No.)

ENT

R-SRCH

ENT

R-SRCH

:

TMH

Visual KV

KV-300

KV-10/16

KV-24/40/80

No.: 000 to 249

No.: 000 to 249

No.: 000 to 063

No.: 000 to 119

Preset value:

Preset value:

Preset value:

Preset value:

#00000 to #65535

#00000 to #65535

#00000 to #65535

#00000 to #65535

KVNKA Chap 02_4aP.p65

08.3.11, 11:58 AM

68

Advertising