I/O Communication With Slave Stations; Reading Slave Station I/O Data; Writing Slave Station I/O Data - Mitsubishi Electric A1SJ71DN91 User Manual

7. PROGRAMMING
7.4

I/O Communication with Slave Stations

7.4.1

Reading slave station I/O data

Parameter request program
Refresh
X0
command X0F
X0F X1
M4
X0F X1
X100
M4
X101
7.4.2

Writing slave station I/O data

M3
Station number 3 output data processing program
X1 M3
X0F
This section describes a sample sequence program to conduct I/O communication.
Parameter setting program
Station number 4 error processing program
Station number 4 input data processing program
Parameter setting program
Refresh request program
TOP H0 H80 K4Y100
FROM H0 H1BC K4M0
FROM H0 H1 K4X100
TO H0 H81 K4Y100
−
7 6
MELSEC-A
Parameter setting
program (see Section 7.3)
Output data initial value
K1
setting
Refresh request
Y11
Read communication
K4
status
K1 Read input data
Parameter setting
program (see Section 7.3)
Refresh request program
(see Section 7.4.1)
Y100
Y102
Y103
Y105
Y107
K1
Write output data