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APPENDICES
MELSEC-A
APPENDIX 7. Special Function Module Buffer Memory Addresses
The special function module buffer memory addresses are listed below.
They are used to read and write (commands TR, TW) data to and from the
special function module buffer memory with protocols 1 to
4.
The appropriate manuals give details about buffer memory contents.
(1)
A68AD
analog-digital converter module
Buffer Memory Contents
Number
of
channels
Averaging processing specification
C H I
averaging time, count
CH2
averaging time, count
CH3
averaging time, count
CH4
averaging time, count
CH5
averaging time, count
CH6
averaging time, count
CH7
averaging time, count
(2)
A62DA
digital-analog converter module
C H I
digital output value
CH2
digital output value
CH3
digital output value
CH4
digital output value
CH5
digital output value
CH6
digital output value
CH7
digital output value
CH8
digital output value
Write data
error
code
Address Set with
FROMITO In-
struction
0
1
2
3
4
5
6
7
Address Set b y Computer
90H
APP
-
13
Lower
8
b i t s
80H
82H
84H
86H
88H
8AH
8CH
8EH
CH8
averaging time, count
94H
96H
98H
9AH
9CH
9EH
AOH
A2H
C4H
Buffer Memory Contents
CH1
digital value
CH2
digital value
C H I
voltage set value check code
CH2
voltage set value check code
CH1
voltage set value
check
code
CH2
voltage set value check code
Higher
8
b i t s
81 H
83H
85H
87H
89H
8BH
8DH
8FH
91 H
8
92H
95H
97H
99H
9BH
9DH
9FH
A1 H
A3H
C5H
10
11
12
13
14
15
16
17
34
Address Set with
FROMITO Instruc-
t i o n
0
1
2
3
4
5
Address Set b y Computer
93H
Lower
8
b i t s
10H
12H
14H
16H
18H
1AH
9
Higher
8
bits
11H
13H
15H
17H
19H
1
BH
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