Mitsubishi MELSEC Q Series Programming Manual page 540

PR
(b) If SM701 is OFF, everything from the device designated by
the target of the operation.
S +0
S
+1
S +2
S +3
S +4
S +5
S +6
S +7
(2) The number of points used by the output module is 10 points from the Y address designated
by
D
(3) Output signals from the output module are transmitted at the rate of 30 ms per character.
For this reason, the time required to the completion of the transmission of the designated
number of characters (n) will be 30 ms
At 10 ms interrupt intervals, the PR instruction executes data output, strobe signal ON, and
strobe signal OFF. The other instructions are executed continuously during a period
between the above processings.
Data output
Strobe signal
(4) In addition to the ASCII code, the output module also outputs a strobe signal (10 ms ON, 20
ms OFF) from the
(5) Following the execution of the PR instruction, the PR instruction execution flag (
device) remains ON until the completion of the transmission of the designated number of
characters.
(6) The PR and PRC instructions can be used multiple times, but it is preferable to establish an
interlock with the PR instruction execution flag (
simultaneously.
(7) If the contents of the device in which ASCII codes are stored changes during the ASCII code
output, the modified data after change will be output.
7-166
Device where ASCII code is stored
Upper 8 bits Lower 8 bits
b15 b8 b7
42 (B) 41 (A)
H
H
44 (D) 43 (C)
H
H
46 (F) 45 (E)
H
H
48 (H) 47 (G)
H
H
4A (J)
49 (I)
H H
4C (L)
4B (K)
H H
4E (N)
00 (NULL)
H H
50 (P)
4F (O)
H H
Sequence program
.
ON
OFF
10 ms
+ 8 device.
D
Output Y
b0
Head of output
D
Scheduled
completion
D
+7
D +8
D +9
Flag indicating PR
instruction in execution
Used as interlock
n (ms).
Execution of sequence program
10 ms 10 ms 10 ms 10 ms
30 ms
+ 9 device) so that they will not be ON
D
to the 00 code will be
H
S
ASCII code output
Printer or
display device
Strobe signal output
PR instruction processing
D
+ 9