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2-4.Temporary memory M (the same handling applies to the unused F and Y)
+ -
Refer to item
The temporary memory corresponds to auxiliary relays without output to the outside. .There is
no
limitation on the number of times which this M can be used as an internal contact. The max.
number for M is 254 points, but the external failure memory F and the unused output Y also can
be used in the same way.
3-2.
M254 and
M 2 5 5 have fixed applications. Do not use these M
carelessly for other purposes.
@
M254 bzttery alarm
This becomes "1" when the battery voltage drops because of discharge. However, as there is
still sufficient time after this has become "l", it is treated as an alarm, and the battery should
be exchanged within one month. For the program, this is handled as a general M, and 1 point
of the output Y should be used for lead-out as an external signal. As this becomes
"'1"
also
when the battery is removed, M254 can not be used as a general M with EP-ROM operation,
@ M Z ~ RUN signal
When the CPU
signal is required as an external signal, 1 point of the output Y should
be used for lead-out. However, in the same way as for M254, use as a general
A4
is not possible.
_ l _ _ _ l _ -
@In case of K2CPU, use "LATCH" as memory holding at the time of power failure. One half
of the M (M128 to M253) can be used as latch memory when the "LATCH" switch is switched
on. When the switch is set to OFF, it becomes a normal temporary memory. Resetting can be
executed summarily with the CPU "RESET"' switch. In case of KlCPU, there is no summary
resetting as described above. In this case, the latch function for 16 points/32 points/64 points
(setting by connectors in the unit) becomes possible by cdnnection of an 'optional latch unit
(KL61) to the I/O unit connector for latching of the output Y. Add "n" to the respective in-
put/output number and execute handling as a latch output Y"n" for the program. This Y can
-
not be taken out directly to the outside. The latch contact is mom-ammed as Xn.
2-5.Timer, counter T, C
3
Refer to item 3-5.
Timer and counter can use 128 points together. The numbers 0 to 127 are specified consecutively
in common for T and C. Setting value of T, C must be written in the step following the OUT in-
struction.
i
O U T
TO
j
.
O U T
i s 1
K
F ]
.i
+
1
P
or data register number
C 1
or
hata
register number
When the'above'i
+
1 or j
+
1 are omitted, (INS. SET ERR) occurs.
The timer setting value can be set in units of 0.1 sec from 0.1 to 999.9 sec. The accuracy is
3
sec
in regard to the setting value.
1. As the setting for the min. unit of 0.1 sec varies from 0 to 0.1 sec, it may become 0 sec accroding
to the timing, In this case, set the setting value to 0.2.
by driving a counter with frequency division for that timing.
2. For a setting in excess of 999.9 sec., execute the lower digits with the timer, and produce a timer
. -
.
-8-
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