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M-Code Data Handling
1
PGU program
I
WAIT
M53
I(1) Execution
1
PGU
I(2)
BFM# 5
b7 b6 b5
b4 b3
b2 b l
bO
0 1 0 1 1
1 / 0 1 1 1 0 ] 1
128 64 (32) (16) 8
(4)
2
(1)
BFM# 3 b 7
ON
(M-code ON signal)
BFM# 3 b 7 OFF
(M-code
ON
signal)
START command
PGU terminal input
5
or BFM #1
b3
)
When
a
SET
M53 or WAIT
the LOOP or
CONT
mode,
y
M53 instruction is
used in
2
a
START
command is not
I
necessary,
8
Sequence program
1
FROM
I
K O
I
K 3
I
K2M210
I
K 1
BFM# 3 b 7
--.
M217
i
FROM
I
K O
I
K 5
I
K2M220
1
K 1
BFM# 5
--.
K2M220
.
M353
M-code OFF command
4
TO
I
K O
I
K 1
I
K2M200
I
K 1
I
A
.
I
IL
A
- 1
-
RST
I
M205
I
M-code
ON
M-code OFF command
I
] - - I - -
128 64 (32) (16) 8
(4)
2
(1)
I
ON
I
completion
sensor
operates.
actuated.
(Differences between WAIT M and SET M instructions (See pages 19,20,35,43))
WAIT (M 0)
WAIT MXX
xx
= 01 to
77
Octal number
SET MXX
xx
=
00 to 77
Octal number
M-code
ON
signal is OFF.
Then, M-code data (BFM
#5) is generated and the
M-code
ON
signal turns
ON.
After the aux. device
operation is completed,
unless the M-code
O N
signal is turned OFF by
an M-code OFF com-
mand (BFM #1 b5) etc.,
the next WAIT MO, WAIT
M ,
or SET M instruction
is not executed, and the
wait state remains
ON.
(M-code ON signal OFF
wait state)
When a WAIT
MO
or
WAIT
M
instruction
is
executed, the
READY signal
the START
turns ON and
command wait
state is set.
(AFTER mode)
When a START com-
mand is given, the M-
code
ON
signal
is
c
turned OFF automat-
ically in the PGU.
After the M-code
ON
signal is turned OFF,
+
give a START com-
mand.
When an M-code
OFF command is
turned
ON,
the opera-
+-
tion starts automat-
ically.
The READY signal does not turn
ON,
and the operation goes to the next step
without a START command.
(WITH mode)
However, if a WAIT MO, WAIT M , or
SET M instruction exists in the next
step, the wait state is set until the
M-
code ON signal
is
turned OFF.
4 -
PGU mode
I
STEP mode
LOOP mode
I
CONT mode
-
130-
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