Mitsubishi Electric MELSEC A Series Manual page 42

5. PROGRAMMING
(6) Control signals for the A68ADN
If the output signal (Y[ ][ ]) to a remote I/O station is PLS Y[ ][ ]), there are cases
when it is not output to the A68ADN in accordance with the relationship
between the master station scan time and the link scan time.
[Sample Program Conditions]
A A A
3 X Y
41 41
N
Power
C
supply
P
module
U
P
21
X00 Y20
~ ~
X1F Y3F
Because the data transmission/receive between a master station and remote
I/O station is executed in the batch refresh mode after the execution of an END
(FEND) instruction, a pulse output that uses an RST instruction after the
execution of the SET instruction cannot be used.
[Sample Program Conditions]
(1) Initial setting
(a) A-D conversion-enabled channel ..............................Channels 1, 2, 3, and 5
(b) Averaging processing by count ........................ Channel 3 (setting: 50 times)
(c) Averaging processing by time .......................... Channel 2 (setting: 1000 ms)
(d) Resolution setting...........................................................................2 (1/8000)
(3) Devices to be used
(a) Intial setting write command input signal ................................................... X0
(b) Write data error reset signal....................................................................... X2
(c) Digital output value read command input signal ........................................ X1
(d) Write data error flag ................................................................................. Y20
(e) M → R link registers ............................................................... W100 to W12F
R → M link registers ............................................................... W130 to W13F
(f)
Power
supply
module
5 − 4
MELSEC-A
Remote I/O station No. 1
A A
J 68
72 A
P D
25 N
X/Y200
I/O number allocatio
~
in master station
X/Y21F