Mitsubishi A2CCPU User Manual

(b) A SET instruction is executed only at the leading edge of
an input condition to turn ON an annunciator.
The annunciator stays
ON when the input condition is
turned off.
When a number of annunciators are used, it is recom-
mended to use an
SET instruction rather than OUT
instruction to reduce scan time.
1
-1
1
(2) Turning OFF an annunciator
1
An RST instruction (RST F[:l) or LEDR instruction is used to
turn OFF an annunciator.
7
(a) To turn off (reset) the annunciator which has been turned d
(b) To turn off the annunciator which is stored in D9009 and 1
D9125, use an LEDR instruction.
An example program used to turn
OFF an annunciator -i
1
-1
ON, use an RST instruction (RST F[:j ).
using an LEDR instruction is shown in Fig. 4.23.
i
Circuk
Circuit
point
which
Circuit
to turn ON an annunciator
to turn OFF tho first on#
are ON
to rsabt all annunciators
liming
clock is turned off
M9020 is used as the timing clock; ON for 1 scan and OFF for the next 1
scan
Fig. 4.23 Program To Turn OFF Annunelator
When an annunciator (F) is tud ON using an instruction
other than OUT and SET inrtructiom, the mnunciator has
the same function as an internal relay.
In this case, M9009 is not set; annunciator number is
not stored in Mw)(19, D9124 to p9132, Mer. I
I
3
3
Setting is possible whether the ERR LED should be lit or blink when an
annunciator
is turned ON. For details, see Section 4.2.8.
4-46
I
18 IN& Bd23SA

Mitsubishi A2CCPU Specifications

General

Brand	Mitsubishi
Model	A2CCPU
Category	Controller
Language	English