Mitsubishi Digital Electronics FX0 Manual

A SERVICE OF

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FX Series Programmable Controllers Devices in Detail 4

4-13

4.6.3 Disabling Individual Interrupts

Individual interrupt devices can be temporaril

y

or permanentl

y

disabled b

y

drivin

g

an

associated special auxiliar

y

rela

y

. The relevant coils are identified in the tables of devices in

chapter 6. However for all PLC t

y

pes the head address is M8050, this will disable interrupt

I0 .

Driving special auxiliary relays:

• Never drive a special auxiliar

y

coil without first checkin

g

its use. Not all PLC’s assi

g

n the

same use to the same auxiliar

y

coils.

Disabling high speed counter interrupts

• These interrupts can onl

y

be disabled as a sin

g

le

g

roup b

y

drivin

g

M8059 ON.

Further details about counter interrupts can be found in the followin

g

section.

4.6.4 Counter Interrupts

Identification of interrupt pointer number:

Example:

The sequence pro

g

rammed after the label

(indicated b

y

the I030 pointer) is executed once

the value of Hi

g

h Speed Counter C255

reaches/equals the preset limit of K100

identified in the example HSCS.

Additional notes:

• Please see the followin

g

pa

g

es for more details on the HSSC applied instruction.

-Hi

g

h Speed Counter Set, HSCS FNC 53 - see pa

g

e 5-55

I 0 0

Counter interrupt number 6 points (1 to 6). Counter interrupts can be

entered as the output devices for Hi

g

h Speed Counter Set (HSCS, FNC

53). To disable the Counter Interrupts Special Auxiliar

y

Rela

y

M8059 must

be set ON.

M8000

C255

I030

K100

DHSCS