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MELSEC-Q
7 PROGRAMMING
7.2 Analog Slave
This section explains the programs for I/O data communication between the
QJ71AS92 and I/O slaves.
The system configuration example in (1) shows how the programs perform when the
utility package is used and when it is not used.
(1) System
Configuration
The QJ71AS92 is mounted on slot 0 of the main base unit.
Slave addresses 1
Power supply
QCPU
QJ71
AS92
X/Y
0 to 1F
AS-i
power supply
AS-i cable
Slave addresses 1
Output 2 points
Slave addresses 2
Slave addresses 2
Output 2 points
CPU module
D0, D1
CPU module
D200, D201
(2) Operations
The following operations are performed in the above system.
(a) D400 and D401 of the CPU module are output to the analog output data to
the slave address 2.
(b) The analog input data from the slave address 1 is stored into D200 and
D201 of the CPU module.
REMARK
If a configuration error occurs, I/O control is executed for the slaves that are ready
for communication.
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