Mitsubishi Electric AnyWire DB A20, Handbook

Page: 30 / 80

5
PROGRAMS COMPARISONS
5
- 3
5.1.2 AnyWire DB A20
Details on the addresses when replacing the I/OLINK are explained by using the module configuration
example described in Section 5.1.1.
Point
I/O information of the AnyWire DB A20 are stored in the buffer memory. The device that data are read
from and written to the buffer memory by the FROM/TO instruction will be assigned to the remote station
module address in the program. The program that controls input and output of the I/OLINK remote
station must be changed.
[System configuration example]
In this example, settings are made to match the addresses of the existing I/OLINK. Since the number of
occupied points differ between the existing module and the replacement module, their addresses cannot
be assigned in the same way. The addresses in this replacement module is example. They can be
assigned as desired according to the system configuration.
X/YC0
X/YDF
QY41P
QJ51
AW12D2
YA0
YBF
QY41P
Y80
Y9F
QY41P
Y60
Y7F
QX41
X40
X5F
QY41P
X20
X3F
QX41
X0
X1F
CPU
A20SB-04U
(input module) A20PB-08U
(output module) A20XB-16UD
(I/O module)
A20SB-08UD
(input module) A20XB-16UD
(I/O module)
Buffer memory address:
100
H
(bit 0 to bit 3)
Switch setting: 0
Buffer memory address:
102
H
(bit 0 to bit 3)
Switch setting: 32
Buffer memory address:
1100
H
(bit 4 to bit 11)
Switch setting: 4
Input:
Buffer memory address: 101
H
(bit 0 to bit 7)
Switch setting: 16
Output:
Buffer memory address: 1101
H
(bit 0 to bit 7)
Switch setting: 16
Input:
Buffer memory address: 101
H
(bit 8 to bit 15)
Switch setting: 24
Output:
Buffer memory address: 1101
H
(bit 8 to bit 15)
Switch setting: 24