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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